Silver nanowire light-transmitting shielding window

Abstract

The utility model provides a silver nanowire light-transmitting shielding window, comprising a transparent hard substrate and a silver nanowire conductive film fixedly attached to the transparent hard substrate, the side of the silver nanowire conductive film away from the transparent hard substrate is a conductive surface, the outer edge of the conductive surface is concavely provided with a conductive lead-out area, the conductive lead-out area is covered with a conductive reinforcement layer, the outer edges of the transparent hard substrate and the silver nanowire conductive film are coated with a conductive edging, and the conductive edging is electrically connected to the conductive reinforcement layer. The utility model, by providing a conductive reinforcement layer to stably lead out the electricity of the silver nanowire coating layer, avoids the problem that the conductivity of the contact surface of the silver nanowire coating layer is easily affected in actual applications due to the nano-level ultra-thin structure, resulting in poor contact, thereby ensuring the continuity of the conductive conduction of the silver nanowire light-transmitting shielding window.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic compatibility light-transmitting shielding, in particular to a silver nanowire light-transmitting shielding window. Background Art

[0002] With the rapid development of science and technology, electronic systems are becoming increasingly complex. Shielding materials that prevent mutual interference between electronic components have also been widely used, allowing electronic equipment to work normally in complex electromagnetic environments. In the existing technology, metal grids and ITO films (mostly ITO) are commonly used in the industry. With the advent of 5G, flexible consumer electronic products and large-screen touch terminals have begun to be used. Since ITO is a rigid material, it is difficult to apply it to flexible screens and large-size touch screens due to its high resistance and easy breakage. Therefore, flexible conductive materials such as silver nanowires and graphene have begun to enter the market, and currently only silver nanowires have been put into industrial application with good results.

[0003] The application of silver nanowires is to coat transparent silver nanowire slurry on a transparent substrate to prepare a transparent silver nanowire conductive film. However, in actual applications, since the film layer is an ultra-thin structure at the nanoscale, poor contact between the conductive surface and the contact point is prone to occur. Utility Model Content

[0004] The main purpose of the utility model is to provide a silver nanowire light-transmitting shielding window to solve the problem of poor contact between the conductive surface and the contact point of the silver nanowire conductive film in the prior art.

[0005] In order to solve the above problems, the utility model adopts the following technical solution: a silver nanowire light-transmitting shielding window, comprising a transparent hard substrate and a silver nanowire conductive film fixedly attached to the transparent hard substrate, wherein the side of the silver nanowire conductive film away from the transparent hard substrate is a conductive surface, and the outer edge of the conductive surface is concavely provided with a conductive lead-out area, and the conductive lead-out area is covered with a conductive reinforcement layer, and the outer edges of the transparent hard substrate and the silver nanowire conductive film are coated with a conductive edging, and the conductive edging is electrically connected to the conductive reinforcement layer.

[0006] Furthermore, the top surface of the conductive reinforcement layer protrudes from the conductive lead-out region.

[0007] Furthermore, the conductive edge is U-shaped, and the opening of the U-shaped conductive edge faces the transparent hard substrate and the silver nanowire conductive film, and is wrapped around the outer edges of the transparent hard substrate and the silver nanowire conductive film.

[0008] Furthermore, a bending portion is provided at an opening end of the U-shaped conductive edge and located on one side of the conductive surface, and the bending portion is attached to one side of the conductive reinforcement layer close to the center direction of the silver nanowire conductive film.

[0009] Furthermore, the conductive edging is made of copper foil.

[0010] Furthermore, the silver nanowire conductive film comprises a conductive film layer and a silver nanowire coating layer coated on the conductive film layer.

[0011] Furthermore, the conductive film layer is a PET film.

[0012] Furthermore, the conductive reinforcement layer is conductive silver paste.

[0013] Furthermore, the width of the conductive reinforcement layer is 3 to 8 mm, and the thickness of the conductive reinforcement layer is less than 1 micron.

[0014] Furthermore, the transparent hard substrate is any one of glass, organic glass or organic PC substrate.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting a conductive reinforcement layer to stably lead out the electricity of the silver nanowire coating layer, the problem of poor contact due to the contact surface conductivity of the silver nanowire coating layer being easily affected in actual applications due to its nano-scale ultra-thin structure is avoided, thereby ensuring the continuity of the conductive silver nanowire shielding window;

[0017] 2. By setting the conductive edge, the window surface can be better covered and the silver nanowire coating layer can be electrically stably led out;

[0018] 3. A conductive lead-out area is recessed on the outer edge of the conductive surface, and the top surface of the conductive reinforcement layer protrudes from the conductive lead-out area. At the same time, a conductive edge bending portion is provided to increase the contact area between the silver nanowire coating layer, the conductive reinforcement layer and the conductive edge, thereby further stably leading out the electricity of the silver nanowire coating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a top view of the silver nanowire light-transmitting shielding window of the utility model;

[0021] Figure 2 for Figure 1 AA view.

[0022] Description of Reference Numerals

[0023] 1. Transparent hard substrate; 2. Silver nanowire conductive film; 21. Conductive film layer; 22. Silver nanowire coating layer; 221. Conductive surface; 222. Conductive lead-out area; 3. Conductive reinforcement layer; 4. Conductive edging; 41. Bending portion. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0025] See also Figure 1 to Figure 2 As shown, a silver nanowire light-transmitting shielding window comprises a transparent hard substrate 1, a silver nanowire conductive film 2, a conductive reinforcing layer 3 and a conductive edging 4. The transparent hard substrate can be any one of glass, organic glass or organic PC substrate according to actual needs. The silver nanowire conductive film 2 is a transparent film integrating light transmission and shielding properties, which is fixedly attached to the transparent hard substrate 1 to avoid mutual interference between electronic components, so that the electronic equipment can work normally in a complex electromagnetic environment.

[0026] The silver nanowire conductive film 2 includes a conductive film layer 21 and a silver nanowire coating layer 22, wherein the silver nanowire coating layer 22 is formed by coating a silver nanowire transparent slurry on the conductive film layer 21 by a coating device. The silver nanowire transparent slurry of this embodiment is the prior art. Silver is a good conductor of electricity, with low resistivity and high conductivity. The silver nanowires are applied to the silver nanowire coating layer 22 to conduct the collected current. In addition, in addition to the excellent conductivity of silver, the silver nanowires also have excellent light transmittance and flex resistance due to the nano-scale size effect. In this embodiment, the conductive film layer 21 is a PET film or a conductive film.

[0027] In this embodiment, the side of the silver nanowire conductive film 2 away from the transparent hard substrate 1 is a conductive surface 221, that is, the silver nanowire coating layer 22 is a conductive surface 221, and the outer edge of the conductive surface 221 is covered with a conductive reinforcement layer 3, and the conductive reinforcement layer 3 is used to stably lead out the electricity of the silver nanowire coating layer 22. Among them, the conductive reinforcement layer 3 is a conductive silver paste, which can form a uniform conductive layer on the contact surface, greatly improving the conductive performance of the electrical device, and the resistivity of the conductive silver paste is very low, which is better than the traditional resistor material.

[0028] The conductive edge 4 is coated on the outer edge of the transparent hard substrate 1 and the silver nanowire conductive film 2, and is electrically connected to the conductive reinforcement layer 3. In this embodiment, the conductive edge 4 is made of a conductive metal, and preferably the conductive edge 4 is made of a copper foil material. In this embodiment, the conductive edge 4 is U-shaped, and the opening of the U-shaped conductive edge 4 faces the transparent hard substrate 1 and the silver nanowire conductive film 2, and is wrapped on the outer edge of the transparent hard substrate 1 and the silver nanowire conductive film 2.

[0029] Preferably, a conductive lead-out area 222 is recessed at the outer edge of the conductive surface 221, and the conductive reinforcement layer 3 is covered in the conductive lead-out area 222. In this embodiment, the width of the conductive reinforcement layer 3 is 3 to 8 mm, and the thickness of the conductive reinforcement layer 3 is less than 1 micron.

[0030] Furthermore, the top surface of the conductive reinforcement layer 3 protrudes from the conductive lead-out area 222, presenting an open end of a U-shaped conductive edge 4, and a bending portion 41 is provided on one side of the conductive surface 221, and the bending portion 41 is attached to one side of the conductive reinforcement layer 3 close to the center direction of the silver nanowire conductive film 2.

[0031] When the utility model is implemented, firstly, a coating device is used to coat the silver nanowire transparent slurry on the conductive film layer 21 to form the silver nanowire conductive film 2, and then the silver nanowire conductive film 2 is bonded to the transparent hard substrate 1, and then a conductive reinforcement layer 3 is coated in the conductive lead-out area 222 at the outer edge of the conductive surface 221 to electrically stably lead out the silver nanowire coating layer 22, and finally a conductive edge 4 is wrapped around the outer edge of the transparent hard substrate 1 and the silver nanowire conductive film 2 to complete the silver nanowire light-transmitting shielding window.

[0032] It should be noted that the silver nanowire light-transmitting shielding window of the utility model can be crimped and fixed on the required window as needed. Generally, conductive glue, conductive pads, conductive adhesive strips and other installation and fixing materials are used to ensure the conductive continuity of the window and the form.

[0033] The above description is only a preferred embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A silver nanowire light-transmitting shielding window, characterized in that: The invention comprises a transparent hard substrate (1) and a silver nanowire conductive film (2) fixedly attached to the transparent hard substrate (1); the side of the silver nanowire conductive film (2) away from the transparent hard substrate (1) is a conductive surface (221); the outer edge of the conductive surface (221) is concavely provided with a conductive lead-out area (222); the conductive lead-out area (222) is covered with a conductive reinforcement layer (3); the outer edges of the transparent hard substrate (1) and the silver nanowire conductive film (2) are covered with a conductive edging (4); the conductive edging (4) is electrically connected to the conductive reinforcement layer (3).

2. The silver nanowire light-transmitting shielding window according to claim 1, characterized in that: The top surface of the conductive reinforcement layer (3) protrudes from the conductive lead-out area (222).

3. The silver nanowire light-transmitting shielding window according to claim 1 or 2, characterized in that: The conductive edge (4) is U-shaped, the opening of the U-shaped conductive edge (4) faces the transparent hard substrate (1) and the silver nanowire conductive film (2), and is wrapped around the outer edges of the transparent hard substrate (1) and the silver nanowire conductive film (2).

4. The silver nanowire light-transmitting shielding window according to claim 3, characterized in that: A bending portion (41) is provided at the open end of the U-shaped conductive edge (4) and located on one side of the conductive surface (221); the bending portion (41) is attached to one side of the conductive reinforcement layer (3) close to the center direction of the silver nanowire conductive film (2).

5. The silver nanowire light-transmitting shielding window according to claim 1, characterized in that: The conductive edge (4) is made of copper foil.

6. The silver nanowire light-transmitting shielding window according to claim 1, characterized in that: The silver nanowire conductive film (2) comprises a conductive film layer (21) and a silver nanowire coating layer (22) coated on the conductive film layer (21).

7. The silver nanowire light-transmitting shielding window according to claim 6, characterized in that: The conductive film layer (21) is a PET film.

8. The silver nanowire light-transmitting shielding window according to claim 1, characterized in that: The conductive reinforcement layer (3) is conductive silver paste.

9. The silver nanowire light-transmitting shielding window according to claim 1 or 8, characterized in that: The width of the conductive reinforcement layer (3) is 3 to 8 millimeters, and the thickness of the conductive reinforcement layer (3) is less than 1 micrometer.

10. The silver nanowire light-transmitting shielding window according to claim 1, characterized in that: The transparent hard substrate (1) is any one of glass, organic glass or organic PC substrate.

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