Conductive film, laminated glass and vehicle

Abstract

The invention provides a conductive film, laminated glass and a vehicle, the conductive film comprises a first base material layer, a functional layer, a bonding layer and a second base material layer which are arranged in a laminated manner, the functional layer is arranged on the first base material layer, an electrode layer is arranged along the edge of the conductive film, and the electrode layer is bonded on the first base material layer; the electrode layer comprises a plurality of silver paste lines, partition lines are arranged between the adjacent silver paste lines for isolation, and the plurality of silver paste lines are sequentially arranged inwards from the edge of the conductive film; the distance between the inner edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film is greater than a preset value, so that the insulation failure of the two silver paste lines close to the edge of the conductive film after the conductive film is laminated by a high-pressure kettle in the process of preparing laminated glass is avoided; wherein the inner edge of the silver paste line closest to the edge of the conductive film is the edge of one side far away from the edge of the conductive film. According to the conductive film, the laminated glass and the vehicle provided by the embodiment of the invention, the reliability of the conductive film is improved.

Description

Technical Field

[0001] This invention relates to the field of glass technology, specifically to a conductive film, laminated glass, and a vehicle. Background Technology

[0002] Laminated glass is widely used in automobiles, rail transportation and other fields because it is safer and more functional than ordinary glass.

[0003] In existing technologies, laminated glass used for automotive windows is typically produced through lamination. A transparent conductive film is laminated between two sheets of glass, and then pressed together under high temperature and pressure in an autoclave to form laminated glass. Short circuits frequently occur in the transparent conductive film after autoclaving. Therefore, how to avoid short circuits in the transparent conductive film after autoclaving during laminated glass manufacturing has become a crucial issue that urgently needs to be addressed in this field. Summary of the Invention

[0004] In view of the problems in the prior art, embodiments of the present invention provide a conductive film, laminated glass, and a vehicle, which can at least partially solve the problems existing in the prior art.

[0005] In a first aspect, the present invention provides a conductive film comprising a first substrate layer, a functional layer, an adhesive layer, and a second substrate layer stacked thereon, wherein:

[0006] The functional layer is disposed on the first substrate layer, and the electrode layer is disposed along the edge of the conductive film and is bonded to the first substrate layer;

[0007] The electrode layer includes multiple silver paste lines, with partition lines separating adjacent silver paste lines. The multiple silver paste lines are arranged sequentially from the edge of the conductive film inward.

[0008] The distance between the inner edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film is greater than a preset value, so as to prevent the insulation of the two silver paste lines close to the edge of the conductive film from failing after the conductive film is laminated in an autoclave during the preparation of laminated glass; wherein, the inner edge of the silver paste line closest to the edge of the conductive film is the edge away from the edge of the conductive film.

[0009] Furthermore, the preset value is y, y = kx + b, where x represents the pressure value of the autoclave lamination in bar, y is in μm, k and b are constants, and the formula y = kx + b is a dimensionless formula.

[0010] Furthermore, the outer edge of the silver paste line closest to the edge of the conductive film is flush with the edge of the conductive film, and the width of the silver paste line closest to the edge of the conductive film is greater than the preset value.

[0011] Furthermore, the sum of the distance between the outer edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film, plus the width of the silver paste line closest to the edge of the conductive film, is greater than the preset value.

[0012] Furthermore, one of the two silver paste lines near the edge of the conductive film is connected to the positive electrode, and the other silver paste line is connected to the negative electrode.

[0013] Furthermore, one of the two silver paste lines near the edge of the conductive film is grounded, and the other silver paste line is connected to either the positive or negative electrode.

[0014] Furthermore, one of the two silver paste lines near the edge of the conductive film is an auxiliary line, and the other silver paste line is connected to the positive or negative electrode.

[0015] Furthermore, two silver paste lines near the edge of the conductive film are connected to different loads.

[0016] Furthermore, the functional layer includes a nano-silver conductive layer, a metal mesh conductive layer, an indium tin oxide layer, a dimming layer, a heating layer, or a touch layer.

[0017] Secondly, the present invention provides a laminated glass comprising a conductive film, a first glass plate, and a second glass plate as described in any of the above embodiments, wherein the conductive film is disposed between the first glass plate and the second glass plate, and a patching structure is provided around the conductive film.

[0018] Thirdly, the present invention provides a means of transportation comprising the laminated glass described in the above embodiments.

[0019] The conductive film, laminated glass, and vehicle provided in this invention include a first substrate layer, a functional layer, an adhesive layer, and a second substrate layer stacked together. The functional layer is disposed on the first substrate layer, and an electrode layer is disposed along the edge of the conductive film and bonded to the first substrate layer. The electrode layer includes multiple silver paste lines, with partition lines separating adjacent silver paste lines. The multiple silver paste lines are arranged sequentially from the edge of the conductive film inward. The distance between the inner edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film is greater than a preset value to prevent insulation failure of the two silver paste lines closest to the edge of the conductive film after lamination in an autoclave during the fabrication of the laminated glass. The inner edge of the silver paste line closest to the edge of the conductive film is the side edge furthest from the edge of the conductive film. By limiting the distance between the inner edge of the first silver paste line and the edge of the conductive film, insulation failure of the first and second silver paste lines is avoided, improving the reliability of the conductive film. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0021] Figure 1 This is a cross-sectional structural diagram of a conductive film provided in an embodiment of the present invention.

[0022] Figure 2 This is a partially enlarged schematic diagram of the electrode layer provided in an embodiment of the present invention.

[0023] Figure 3 This is a partially enlarged schematic diagram of the electrode layer provided in another embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the location of the recessed area provided in an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the location of the recessed area provided in another embodiment of the present invention.

[0026] Figure 6 This is a cross-sectional structural diagram of a conductive film provided in another embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the location of the recessed area provided in an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the location of the recessed area provided in another embodiment of the present invention.

[0029] Figure 9A This is a cross-sectional structural diagram of laminated glass provided in an embodiment of the present invention.

[0030] Figure 9B This is a schematic diagram of the planar structure of laminated glass provided in an embodiment of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments and their descriptions are used to explain the present invention, but are not intended to limit the present invention. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The acquisition, storage, use, and processing of data in the technical solutions of this application all comply with relevant laws and regulations. The user information in the embodiments of this application is obtained through legal and compliant means, and the acquisition, storage, use, and processing of user information have been authorized and agreed upon by the customer.

[0032] Figure 1 This is a cross-sectional structural diagram of a conductive film provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the conductive film provided in this embodiment of the invention includes a first substrate layer 1, a functional layer 2, an adhesive layer 4, and a second substrate layer 3 stacked together, wherein:

[0033] Functional layer 2 is disposed on first substrate layer 1, electrode layer 5 is disposed along the edge of the conductive film, and electrode layer 5 is bonded to first substrate layer 1.

[0034] The electrode layer 5 includes multiple silver paste lines, first silver paste lines 5-1, and partition lines are set between adjacent silver paste lines 5-1 to achieve insulation. The multiple silver paste lines are arranged sequentially from the edge of the conductive film inward.

[0035] The distance between the inner edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film is greater than a preset value. This is to prevent the insulation of the two silver paste lines closest to the edge of the conductive film from failing after lamination in an autoclave during the fabrication of laminated glass. The inner edge of the silver paste line closest to the edge of the conductive film is the edge furthest from the edge of the conductive film. For ease of description, the silver paste line closest to the edge of the conductive film is referred to as the first silver paste line 5-1; the two silver paste lines closest to the edge of the conductive film are referred to as the first silver paste line 5-1 and the second silver paste line 5-2.

[0036] Specifically, functional layer 2 includes electrode layer 5, which provides operating voltage to functional layer 2. Electrode layer 5 is disposed along the edge of the conductive film and can be bonded to the first substrate layer 1. Electrode layer 5 includes multiple silver paste lines. Adjacent silver paste lines 5-1 are separated by partition lines to achieve insulation between adjacent silver paste lines, i.e., no conductivity between adjacent silver paste lines. The partition lines can be made of insulating material. The multiple silver paste lines 5-1 are arranged sequentially from the edge of the conductive film inwards, with the first silver paste line 5-1 closer to the edge of the conductive film and the second silver paste line 5-2 closer to the center of the conductive film. The first substrate layer 1 and the second substrate layer 3 can be made of transparent materials, selected according to actual needs; this embodiment of the invention does not limit the choice. Functional layer 2 includes structures that require electrical conduction, including but not limited to a nano-silver conductive layer, a metal mesh conductive layer, and an indium tin oxide (ITO) layer, selected according to actual needs; this embodiment of the invention does not limit the choice. The adhesive layer 4 can be made of water-based adhesive, optically clear adhesive (OCA), polymer adhesive, etc., and the choice is made according to actual needs. This embodiment of the invention does not limit the choice.

[0037] In the process of preparing laminated glass using the conductive film, after the conductive film is laminated with two glass plates, it will be laminated in an autoclave. During the autoclave lamination process, the vacuum pressure applied to the unformed laminated glass inside the autoclave is transmitted from the external pressure on the glass plates to the conductive film in the middle. At the edge of the conductive film, pressure is applied to the adhesive layer 4 through the edge strip, causing the adhesive layer 4 to compress and shrink inward. The adhesive material is fluid at high temperatures; when the adhesive layer 4 is compressed inward by external force, it will cause the first silver paste line 5-1 of the electrode layer 5 to move inward as well, resulting in displacement. Some silver paste debris from the first silver paste line 5-1 will peel off. If this debris falls onto the dividing line 5-3 between the first and second silver paste lines 5-1 and 5-2, there is a risk of a short circuit between them. Therefore, this application proposes that the distance between the inner edge of the first silver paste line 5-1 and the edge of the conductive film is greater than a preset value, preventing silver paste debris from falling onto the dividing line 5-3, thus avoiding insulation failure between the first and second silver paste lines 5-1 and 5-2 and improving the reliability of the conductive film. The preset value is set according to actual needs, and this embodiment of the invention does not limit it. The inner edge of the first silver paste line 5-1 is the side edge away from the edge of the conductive film, and the outer edge of the first silver paste line 5-1 is the side edge close to the edge of the conductive film.

[0038] In some embodiments, the electrode layer 5 can be electrically connected to the outside via a flexible printed circuit (FPC), with the FPC serving as an external electrode.

[0039] In some embodiments, the functional layer 2 may include a conductive layer for realizing electrical connections and independent control of components disposed within the functional layer 2. The conductive layer may be formed into specific patterns through processes such as chemical etching or laser ablation. The conductive layer may be deposited on the first substrate layer 1 or the second substrate layer 3 by means of a coating or adhesive. To improve the reliability of the conductive layer, an adhesive, insulating material, or the like may be disposed on the side of the conductive layer opposite to the coating or adhesive to form a wrapping around the conductive layer.

[0040] In some embodiments, the functional layer 2 may include multilayer wiring, which may be formed by stacking multiple layers of adhesive or insulating material and conductive layers.

[0041] In some embodiments, the conductive film is made of nano-silver touch film, metal mesh touch film, ITO, etc., so that the conductive film has a large visible light transmittance.

[0042] In some embodiments, the conductive film adopts an opaque structure such as copper, silver, or a flexible circuit board.

[0043] In some embodiments, the conductive film is a composite of transparent and opaque materials, such as a combination of a metal mesh touch film and an FPC.

[0044] In some embodiments, a certain area of ​​continuous conductive layer material (such as pads) is provided in the internal conductive layer of the conductive film, on one side of the surface of the conductive film, or on both sides of the surface of the conductive film, so as to achieve electrical connection with other components.

[0045] In some embodiments, LED chips or light-emitting diodes are mounted on the surface of the conductive film using methods such as die bonding or reflow soldering. The conductive film is connected to an external driving circuit board through an exposed conductive layer (such as a gold finger) at one end. The voltage or current provided by the external driving circuit board is supplied to the LED light-emitting element through the traces of the conductive film and the pads, exciting the light-emitting element to emit light of the corresponding color and brightness.

[0046] The conductive film provided in this embodiment of the invention includes a first substrate layer, a functional layer, an adhesive layer, and a second substrate layer stacked together. The functional layer is disposed on the first substrate layer, and an electrode layer is disposed along the edge of the conductive film and adhered to the first substrate layer. The electrode layer includes multiple silver paste lines, with partition lines separating adjacent silver paste lines. The multiple silver paste lines are arranged sequentially from the edge of the conductive film inward. The distance between the inner edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film is greater than a preset value to prevent insulation failure of the two silver paste lines closest to the edge of the conductive film after lamination in an autoclave during the preparation of laminated glass. The inner edge of the silver paste line closest to the edge of the conductive film is the side edge away from the edge of the conductive film. By limiting the distance between the inner edge of the first silver paste line and the edge of the conductive film, insulation failure of the first and second silver paste lines is avoided, thus improving the reliability of the conductive film.

[0047] Based on the above embodiments, the preset value is further defined as y, where y = kx + b, x represents the pressure value of the autoclave lamination in bar, y is in μm, k and b are constants, and the formula y = kx + b is a dimensionless formula.

[0048] Specifically, the preset value can be calculated using the formula y = kx + b, where x represents the pressure value of the autoclave lamination in bar; y is in μm; and k and b are constants. Substituting the dimensionless autoclave lamination pressure value into the formula y = kx + b yields the preset value; the value substituted into the formula is dimensionless.

[0049] The above formula y = kx + b can be obtained through experiments.

[0050] Two sets of autoclave lamination experiments were conducted on the conductive film, with five different autoclave pressure values ​​used in each set for lamination. In this embodiment of the invention, the conductive film is a flexible mini LED conductive film. The first and second substrate layers are flexible transparent substrates with a thickness of 0.1-0.2 mm. The functional layer is a metal mesh conductive layer, with electrode layers arranged around its perimeter. The metal mesh conductive layer and the electrode layers are bonded between the two flexible transparent substrates using an adhesive material that resists ion migration. The flexible mini LED conductive film is sandwiched between two glass plates. Using two layers of polymer adhesive material, an autoclave lamination process is employed to sandwich the flexible mini LED conductive film between the two glass plates, forming a mini LED luminescent laminated glass.

[0051] The outer edge of the first silver paste line 5-1 of the conductive film is flush with the edge of the conductive film. The distance the outer edge of the first silver paste line 5-1 moves inward into the conductive film due to the pressure of the autoclave (hereinafter referred to as the inward movement distance) and the pressure value of the autoclave are recorded. The first set of experimental data is shown in Table 1. The second set of experimental data is shown in Table 2.

[0052] Table 1. Experimental data for the first group

[0053]

[0054] Table 2. Experimental data for the second group.

[0055]

[0056] Analyzing the two sets of experimental data, the five inward distances and the pressure values ​​of the autoclave in each set were represented by scatter plots. Through linear fitting, the formulas corresponding to the first set of experimental data were obtained as y = 17.799x + 336.21; and the formula for the second set of experimental data was y = 16.391x + 351.7. Averaging the slopes and intercepts of these two formulas, the formula y = 17.095x + 343.955 was obtained. This formula shows that the pressure value of the autoclave is directly proportional to the inward distance.

[0057] like Figure 2 and Figure 3 As shown, the dashed line represents the position that the outer edge of the first silver paste line 5-1 can move to due to the pressure of the autoclave, being squeezed inwards towards the conductive film. The area between the dashed line and the outer edge of the conductive film is the inward contraction zone. E is the inward contraction distance, A1 is the distance between the inner edge of the first silver paste line 5-1 and the edge of the conductive film, A3 is the width of the partition line 5-3, and A2 is the width of the second silver paste line 5-2. Figure 2 As shown, since the distance A1 between the inner edge of the first silver paste line 5-1 and the edge of the conductive film is less than the inward shrinkage distance E, if silver paste flakes fall off the first silver paste line 5-1 during the compression process and fall onto the partition line 5-3 between the first silver paste line 5-1 and the second silver paste line 5-2, there is a risk of short circuit between the first silver paste line 5-1 and the second silver paste line 5-2.

[0058] like Figure 3As shown, when the distance A1 between the inner edge of the first silver paste line 5-1 and the edge of the conductive film is greater than the inward retraction distance E, even if silver paste flakes fall off the first silver paste line 5-1 during the compression process, the flakes will not fall onto the partition line 5-3 between the first silver paste line 5-1 and the second silver paste line 5-2, thus preventing a short circuit between the first silver paste line 5-1 and the second silver paste line 5-2. Therefore, the preset value can be calculated using the formula y = 17.095x + 343.955. The preset value is different for different pressure values ​​of the autoclave; k can be 17.095, and b can be 343.955.

[0059] In some embodiments, the pressure value of the autoclave is 2 bar. According to the formula y = 17.095x + 343.955, the inward distance y is 378.145. When the distance between the inner edge of the first silver paste line and the edge of the conductive film is greater than 378.145 μm, it can prevent the insulation failure of the second silver paste line 5-2 and the first silver paste line 5-1 after the conductive film is laminated in the autoclave during the preparation of laminated glass.

[0060] Based on the above embodiments, the outer edge of the first silver paste line 5-1 is flush with the edge of the conductive film, and the width of the first silver paste line 5-1 is greater than the preset value.

[0061] Specifically, when the outer edge of the first silver paste line 5-1 is flush with the edge of the conductive film, the width of the first silver paste line 5-1 is greater than the preset value, which can prevent the insulation of the first silver paste line 5-1 and the second silver paste line 5-2 from failing after the conductive film is laminated in an autoclave during the preparation of laminated glass.

[0062] For example, such as Figure 1 As shown, the outer edge of the first silver paste line 5-1 is flush with the edge of the conductive film. When the width of the first silver paste line 5-1 is greater than the preset value, the insulation failure of the first silver paste line 5-1 and the second silver paste line 5-2 can be avoided after the conductive film is laminated in a high-pressure autoclave during the preparation of laminated glass.

[0063] For example, such as Figure 4 and Figure 5 As shown, the outer edge of the first silver paste line 5-1 is flush with the edge of the conductive film. The area between the dashed line and the edge of the conductive film is the inward shrinkage area. E is the inward shrinkage distance (i.e., the preset value), and w is the width of the first silver paste line 5-1. Figure 4 In this process, the width w of the first silver paste line 5-1 is greater than the inward distance E, which can prevent the insulation of the first silver paste line 5-1 and the second silver paste line 5-2 from failing after the conductive film is laminated in an autoclave during the preparation of laminated glass. Figure 5In the process, the width w of the first silver paste line 5-1 is less than the inward distance E. If silver paste flakes fall off the first silver paste line 5-1 during the compression process and fall onto the partition line 5-3 between the first silver paste line 5-1 and the second silver paste line 5-2, there is a risk of short circuit between the first silver paste line 5-1 and the second silver paste line 5-2.

[0064] Based on the above embodiments, the sum of the distance between the outer edge of the first silver paste line 5-1 and the edge of the conductive film plus the width of the first silver paste line 5-1 is greater than the preset value.

[0065] Specifically, such as Figure 6 As shown, when the distance between the outer edge of the first silver paste line 5-1 and the edge of the conductive film is d, and the width of the first silver paste line 5-1 is w, w+d is greater than the preset value, thereby preventing the insulation failure of the first silver paste line 5-1 and the first silver paste line 5-1 after lamination in an autoclave during the preparation of laminated glass. d is greater than 0.

[0066] For example, such as Figure 7 and Figure 8 As shown, the distance between the outer edge of the first silver paste line 5-1 and the edge of the conductive film is d. The area between the dashed line and the edge of the conductive film is the inward shrinkage area. E is the inward shrinkage distance (i.e., the preset value). w is the width of the first silver paste line 5-1. The distance between the outer edge of the first silver paste line 5-1 and the edge of the conductive film is equal to the sum of the width w of the first silver paste line 5-1 and the distance d. Figure 7 In this case, w+d is greater than the inward distance E, which can prevent the insulation of the first silver paste line 5-1 and the second silver paste line 5-2 from failing after the conductive film is laminated in a high-pressure autoclave during the preparation of laminated glass. Figure 8 In the middle, w+d is less than the inward distance E. If silver paste flakes fall off the first silver paste line 5-1 during the compression process and fall onto the partition line 5-3 between the first silver paste line 5-1 and the second silver paste line 5-2, there is a risk of short circuit between the first silver paste line 5-1 and the second silver paste line 5-2.

[0067] Based on the above embodiments, further, one of the two silver paste lines near the edge of the conductive film is connected to the positive electrode, and the other silver paste line is connected to the negative electrode.

[0068] Specifically, the first silver paste line 5-1 is connected to the positive electrode, and the second silver paste line 5-2 is connected to the negative electrode. Alternatively, the first silver paste line 5-1 is connected to the negative electrode, and the second silver paste line 5-2 is connected to the positive electrode. When a working voltage is applied, no short circuit will occur between the first silver paste line 5-1 and the second silver paste line 5-2.

[0069] Because the distance between the inner edge of the first silver paste line 5-1 and the edge of the conductive film is greater than a preset value, the insulation between the first silver paste line 5-1 and the second silver paste line 5-2 can be prevented after the conductive film undergoes high-pressure reactor lamination during the laminated glass manufacturing process. When a working voltage is applied to the conductive film in the laminated glass, a short circuit will not occur between the first silver paste line 5-1 and the second silver paste line 5-2, thereby preventing damage to circuit components due to short circuits.

[0070] Based on the above embodiments, further, one of the two silver paste lines near the edge of the conductive film is grounded, and the other silver paste line is connected to the positive or negative electrode.

[0071] Specifically, the first silver paste line 5-1 is grounded, and the second silver paste line 5-2 is connected to either the negative or positive terminal. Alternatively, the first silver paste line 5-1 is connected to either the negative or positive terminal, and the second silver paste line 5-2 is grounded. When a working voltage is applied, no short circuit will occur between the first silver paste line 5-1 and the second silver paste line 5-2.

[0072] Because the distance between the inner edge of the first silver paste line 5-1 and the edge of the conductive film is greater than a preset value, the insulation between the first silver paste line 5-1 and the second silver paste line 5-2 can be prevented after the conductive film undergoes high-pressure reactor lamination during the laminated glass manufacturing process. When a working voltage is applied to the conductive film in the laminated glass, a short circuit will not occur between the first silver paste line 5-1 and the second silver paste line 5-2, thereby preventing the positive or negative circuit from becoming uncontrollable due to a short circuit between the first silver paste line 5-1 and the second silver paste line 5-2.

[0073] Based on the above embodiments, further, one of the two silver paste lines near the edge of the conductive film is an auxiliary line, and the other silver paste line is connected to the positive or negative electrode.

[0074] Specifically, the first silver paste line 5-1 or the second silver paste line 5-2 can serve as an auxiliary line (dummy), a non-functional component set up to meet process requirements or ensure product performance. The auxiliary line does not undertake actual conductive signal transmission. After the conductive film is subjected to a working voltage, the first silver paste line 5-1 will not receive an electrical signal, and the second silver paste line 5-2 will be connected to the negative or positive terminal. Alternatively, after the conductive film is subjected to a working voltage, the first silver paste line 5-1 will be connected to the negative or positive terminal, and the second silver paste line 5-2 will not receive an electrical signal.

[0075] Because the distance between the inner edge of the first silver paste line 5-1 and the edge of the conductive film is greater than a preset value, the insulation between the first silver paste line 5-1 and the second silver paste line 5-2 can be prevented after the conductive film undergoes high-pressure reactor lamination during the laminated glass manufacturing process. When a working voltage is applied to the conductive film in the laminated glass, a short circuit will not occur between the first silver paste line 5-1 and the second silver paste line 5-2, thus preventing external static electricity caused by a short circuit from reaching the negative or positive electronic components through the short circuit point and damaging the electronic components.

[0076] Based on the above embodiments, further, two silver paste lines near the edge of the conductive film are connected to different loads.

[0077] Specifically, after a working voltage is applied to the conductive film, the first silver paste line 5-1 and the second silver paste line 5-2 are respectively connected to different loads, or only one of the first silver paste line 5-1 and the second silver paste line 5-2 is connected to the corresponding load.

[0078] Because the distance between the inner edge of the first silver paste line 5-1 and the edge of the conductive film is greater than a preset value, the insulation failure of the first silver paste line 5-1 and the second silver paste line 5-2 can be avoided after the conductive film is laminated in an autoclave during the preparation of laminated glass. When a working voltage is applied to the conductive film in the laminated glass, a short circuit will not occur between the first silver paste line 5-1 and the second silver paste line 5-2. This prevents the simultaneous control of the negative terminals connected to the first and second silver paste lines 5-1 when one of the silver paste lines receives a control signal (such as a pulse width modulation signal) due to a short circuit between the first and second silver paste lines 5-1 and 5-2.

[0079] Based on the above embodiments, the functional layer 2 further includes a nano-silver conductive layer, a metal mesh conductive layer, an indium tin oxide layer, a dimming layer, a heating layer, and a touch layer.

[0080] Figure 9A This is a schematic cross-sectional view of a laminated glass structure provided in an embodiment of the present invention. Figure 9B This is a schematic diagram of the planar structure of laminated glass provided in an embodiment of the present invention. Figure 9A for Figure 9B EE cross-section diagram, such as Figure 9A and Figure 9B As shown, the laminated glass provided in this embodiment of the invention includes the conductive film 100, the first glass plate 200, and the second glass plate 300 as described in any of the above embodiments. The conductive film 100 is disposed between the first glass plate 200 and the second glass plate 300, and a patching structure 400 is provided around the conductive film 100. The patching structure 400 may be made of polyvinyl butyral (PVB).

[0081] A first adhesive layer 500 may be provided between the conductive film 100 and the first glass plate 200, and a second adhesive layer 600 may be provided between the second glass plate 300 and the conductive film 100.

[0082] In some embodiments, the laminated glass further includes an FPC700, which serves as an external electrode, and the electrode layer on the conductive film 100 is electrically connected to the outside through the FPC700.

[0083] In some embodiments, a light guide film with LED light emitters can be integrated into the interlayer between two glass plates through a lamination process to form laminated glass.

[0084] The laminated glass provided in this invention, by employing the conductive film described in the above embodiments, avoids the conductive film becoming unusable due to insulation failure of the first and second silver paste lines during the manufacturing process, thus improving the reliability of the laminated glass. Furthermore, it reduces the scrap rate of the laminated glass, thereby lowering its manufacturing cost.

[0085] This invention provides a means of transportation, including the laminated glass described in the above embodiments. The means of transportation includes, but is not limited to, automobiles, trains, buses, ships, and airplanes.

[0086] In the description of this specification, the references to terms such as "an embodiment," "a specific embodiment," "some embodiments," "for example," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. 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 any suitable manner in one or more embodiments or examples.

[0087] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A conductive film, characterized in that, It includes a first substrate layer, a functional layer, an adhesive layer, and a second substrate layer stacked together, wherein: The functional layer is disposed on the first substrate layer, and the electrode layer is disposed along the edge of the conductive film and is bonded to the first substrate layer; The electrode layer includes multiple silver paste lines, with partition lines separating adjacent silver paste lines. The multiple silver paste lines are arranged sequentially from the edge of the conductive film inward. The distance between the inner edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film is greater than a preset value, so as to prevent the insulation of the two silver paste lines close to the edge of the conductive film from failing after the conductive film is laminated in an autoclave during the preparation of laminated glass; wherein, the inner edge of the silver paste line closest to the edge of the conductive film is the edge away from the edge of the conductive film.

2. The conductive film according to claim 1, characterized in that, The preset value is y, y = kx + b, where x represents the pressure value of the autoclave lamination in bar, y is in μm, k and b are constants, and the formula y = kx + b is a dimensionless formula.

3. The conductive film according to claim 1, characterized in that, The outer edge of the silver paste line closest to the edge of the conductive film is flush with the edge of the conductive film, and the width of the silver paste line closest to the edge of the conductive film is greater than the preset value.

4. The conductive film according to claim 1, characterized in that, The sum of the distance between the outer edge of the silver paste line closest to the edge of the conductive film and the edge of the conductive film, plus the width of the silver paste line closest to the edge of the conductive film, is greater than the preset value.

5. The conductive film according to claim 1, characterized in that, One of the two silver paste lines near the edge of the conductive film is connected to the positive electrode, and the other silver paste line is connected to the negative electrode.

6. The conductive film according to claim 1, characterized in that, One of the two silver paste lines near the edge of the conductive film is grounded, and the other silver paste line is connected to either the positive or negative electrode.

7. The conductive film according to claim 1, characterized in that, Of the two silver paste lines near the edge of the conductive film, one is an auxiliary line, and the other is connected to either the positive or negative electrode.

8. The conductive film according to claim 1, characterized in that, Two silver paste lines near the edge of the conductive film are connected to different loads.

9. The conductive film according to any one of claims 1 to 8, characterized in that, The functional layer includes a nano-silver conductive layer, a metal mesh conductive layer, an indium tin oxide layer, a dimming layer, a heating layer, and a touch layer.

10. A laminated glass, characterized in that, The invention includes the conductive film as described in any one of claims 1 to 9, a first glass plate, and a second glass plate, wherein the conductive film is disposed between the first glass plate and the second glass plate, and a patching structure is provided around the periphery of the conductive film.

11. A means of transportation, characterized in that, Includes the laminated glass as described in claim 10.

Images