Ultra-long transparent flexible screen conductive substrate and preparation method thereof

Abstract

The invention discloses an ultra-long transparent flexible screen conductive substrate and a preparation method thereof, and the substrate comprises multiple sections of flexible films which are provided with opposite head ends and tail ends; the flexible film comprises a tail end and a head end, the tail end is bonded with the two bonding pads, the head end is provided with two through holes, the two bonding pads are connected to one end of a film circuit on the flexible film, and the other end of the film circuit extends into the through holes. The two bonding pads are inserted into the two through holes of the adjacent flexible films and are electrically connected to the other ends of the film circuits of the adjacent flexible films, and the bonding pads are connected to the hole walls of the through holes in a dispensing manner; the reinforcing wires are fixedly arranged on the sides, away from the bonding pads, of the adjacent flexible films, and the two ends of each reinforcing wire are connected to the two bonding pads of the corresponding flexible film. The problem that an existing flexible transparent display product is not high in attractiveness after being spliced is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an ultra-long transparent flexible screen conductive substrate and a preparation method thereof. Background Art

[0002] At present, new display products represented by flexible transparent display products have appeared in the domestic market. Specifically, after mounting LED light sources on flexible transparent conductive flexible films as substrates, flexible films with refined combinations (flexible transparent display products) are formed on the flexible films. Such products have the characteristics of ultra-high transparency, ultra-thin size and the ability to be mounted. However, such products are generally not available in large sizes on the market, and products need to be spliced ​​during installation. This type of splicing often means that more power control boxes or structural fixed joint edges are required, which greatly reduces the aesthetics. How to solve the size problem of large-size flexible transparent display products through new splicing processes without affecting the aesthetics and electrical performance has become a key node for breakthrough development. Summary of the invention

[0003] In order to overcome the defects of the prior art, an ultra-long transparent flexible screen conductive substrate and a preparation method thereof are provided to solve the problem that the existing flexible transparent display products have low aesthetics after splicing.

[0004] To achieve the above object, an ultra-long transparent flexible screen conductive substrate is provided, comprising:

[0005] a plurality of sections of flexible membrane, the flexible membrane having opposite head and tail ends;

[0006] Two pads, the tail end is bonded with two pads, the head end is formed with two through-holes, the two pads are connected to one end of the membrane circuit on the flexible membrane, the other end of the membrane circuit extends into the through-hole, the two pads are inserted into the two through-holes of the adjacent flexible membrane and electrically connected to the other end of the membrane circuit of the adjacent flexible membrane, and the pads are connected to the hole wall of the through-hole by glue;

[0007] A reinforcing wire is fixedly arranged on a side of the adjacent flexible film away from the pad, and two ends of the reinforcing wire are connected to two pads of the flexible film.

[0008] Furthermore, the two pads are spaced apart along the length direction of the flexible film.

[0009] Furthermore, the pad is connected to the membrane circuit by tin wire welding.

[0010] Furthermore, the reinforcement conductor is a multi-core copper wire, and both ends of the multi-core copper wire are welded and connected to the two pads.

[0011] Furthermore, the reinforcing wire is arranged along the length direction of the flexible membrane.

[0012] The present invention provides a method for preparing an ultra-long transparent flexible screen conductive substrate, comprising the following steps:

[0013] Two pads are bonded to the tail end of the multi-section flexible film, the two pads are connected to one end of the membrane circuit on the flexible film, and two through holes are opened at the head end of the multi-section flexible film so that the other end of the membrane circuit extends into the through holes;

[0014] inserting the two pads into two through-holes of adjacent flexible films;

[0015] Connecting the pad to the hole wall of the through hole by glue dispensing;

[0016] electrically connecting the two pads to the other end of the film circuit of the adjacent flexible film;

[0017] A reinforcing wire is fixedly arranged on one side of the adjacent flexible film away from the welding pad, and two ends of the reinforcing wire are connected to the two welding pads of the flexible film.

[0018] The beneficial effect of the present invention is that the ultra-long transparent flexible screen conductive substrate of the present invention utilizes a flexible film based on a flexible transparent conductive substrate. After the LED light source is mounted on the flexible film material, pieces of flexible films with refined combinations are formed, and several film materials are spliced ​​into ultra-long sizes, reducing the use of power control boxes or structural fixed connecting edges, thereby improving the overall aesthetics and convenience of construction, reducing installation workload, and improving the overall convenience of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 Schematic diagram of the structure of the conductive substrate of the ultra-long transparent flexible screen according to an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of the structure of the flexible membrane according to an embodiment of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the joint of the flexible membrane according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Reference Figures 1 to 3 As shown, the present invention provides an ultra-long transparent flexible screen conductive substrate, including: a flexible film 1, a welding pad 2, and a reinforcement wire 3.

[0026] In this embodiment, the flexible film is in the shape of a long strip. The flexible film 1 has a head end and a tail end opposite to each other. The number of the flexible film 1 is multiple. Two through holes 10 are formed at the head end.

[0027] An LED light source (LED chip) is mounted on the flexible film, and a film circuit is arranged on the flexible film. The film circuit is connected to the LED light source mounted on the flexible film.

[0028] In this embodiment, two pads 2 are bonded to the tail end of the flexible film. The two pads 2 are connected to one end of the membrane circuit 11 on the flexible film 1. The other end of the membrane circuit 11 extends into the through hole 10. The two pads 2 are inserted into two through holes 10 of adjacent flexible films 1. The two pads 2 are electrically connected to the other end of the membrane circuit 11 of the adjacent flexible film 1. The pads 2 are glued to the hole wall of the through hole 10.

[0029] The reinforcing wire 3 is fixedly arranged on a side of the adjacent flexible film 1 away from the pad 2 . Two ends of the reinforcing wire 3 are connected to two pads 2 of the flexible film 1 .

[0030] As a preferred implementation, the two pads 2 are spaced apart along the length direction of the flexible film 1 .

[0031] In this embodiment, the pad 2 is connected to the membrane circuit 11 by soldering with tin wire.

[0032] As a preferred implementation, the reinforcing conductor 3 is a multi-core copper wire, and both ends of the multi-core copper wire are welded and connected to the two pads 2 .

[0033] In this embodiment, the reinforcing wires 3 are arranged along the length direction of the flexible film 1 .

[0034] The present invention provides a method for preparing an ultra-long transparent flexible screen conductive substrate, comprising the following steps:

[0035] S1. Two pads 2 are bonded to the tail end of the multi-section flexible film 1. The two pads 2 are connected to one end of the membrane circuit 11 on the flexible film 1. Two through holes 10 are opened at the head end of the multi-section flexible film 1 so that the other end of the membrane circuit 11 extends into the through holes 10.

[0036] S2 . Insert two pads 2 into two through holes 10 of adjacent flexible films 1 .

[0037] S3, connecting the pad 2 to the hole wall of the through hole 10 by applying glue.

[0038] S4 , electrically connecting the two pads 2 to the other end of the film circuit 11 of the adjacent flexible film 1 .

[0039] S5 , fixing a reinforcing wire 3 on a side of the adjacent flexible film 1 away from the pad 2 , and connecting two ends of the reinforcing wire 3 to two pads 2 of the flexible film 1 .

[0040] The ultra-long transparent flexible screen conductive substrate of the present invention utilizes a flexible film based on a flexible transparent conductive substrate. After the LED light source is mounted on the flexible film material, pieces of flexible films with refined combinations are formed. Several film materials are spliced ​​into ultra-long sizes, reducing the amount of power control boxes or structural fixed joint edges, thereby improving the overall aesthetics and convenience of construction.

[0041] The conventional film material size of a single flexible film is 120-240mm×800-1200mm. Multiple flexible films are "joined" to super-long sizes through welding pads.

[0042] Specifically, when designing the membrane material, first, the tail end of the flexible membrane needs to be designed as "double pads + one line" (the diameter of the pad is 3.2-3.5mm), and the remaining flexible membranes need to be designed as "double holes and one line" at the head end (the aperture size of the perforation is 4-4.5mm) + "double pads + one line" at the tail end (the welding reinforcement line length is 3-8mm), and then the tail end of the first flexible membrane is overlapped and aligned with the head and tail of the remaining flexible membranes (double pads and double holes are aligned), and fixed with glue. Then start point-to-point welding. For welding, you need to place the heated soldering iron tip on the welding point for 3 seconds to preheat, then add solder wire and start rotating it clockwise at a constant speed at the pad hole. The single-point rotation welding time needs to last for 5 to 10 seconds. Next, use a customized multi-core (soft) copper wire with a wire diameter of 0.02mm (the finished wire diameter is 0.3 to 0.5mm, and the length is 3 to 8mm) to weld between the double pads to enhance the conductivity and increase the structural stability. At the same time, the ultra-fine array arrangement makes it more beautiful.

[0043] After completing the above hardware process design and production process, the following electrical performance stability test phase begins:

[0044] The first step is to verify the port open and short circuit detection.

[0045] Step 2: DC12V detection.

[0046] The third step is DC5V aging stage.

[0047] After aging, please repeat the 5V power-on and power-off detection several times to ensure that the data port connection is normal after aging. Note that the post-aging detection needs to be tested once at the aging high temperature, and then powered on again after low-temperature heat dissipation to ensure that there is no cold soldering due to temperature differences.

[0048] The ultra-long transparent flexible screen conductive substrate of the present invention splices a plurality of flexible films into ultra-long pieces, thereby reducing the amount of power control boxes or structural fixed joint edges.

[0049] The ultra-long transparent flexible screen conductive substrate of the present invention reduces the amount of power control boxes or structural fixed joint edges used when installing flexible transparent display products, thereby improving the overall aesthetics of the construction.

[0050] The ultra-long transparent flexible screen conductive substrate of the present invention reduces the amount of power control box or structure fixed joint edge used when installing a flexible transparent display product, thereby reducing the installation workload and improving the overall convenience of construction.

[0051] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An ultra-long transparent flexible screen conductive substrate, characterized in that: include: a plurality of sections of flexible membrane, the flexible membrane having opposite head and tail ends; Two pads, the tail end is bonded with two pads, the head end is formed with two through-holes, the two pads are connected to one end of the membrane circuit on the flexible membrane, the other end of the membrane circuit extends into the through-hole, the two pads are inserted into the two through-holes of the adjacent flexible membrane and electrically connected to the other end of the membrane circuit of the adjacent flexible membrane, and the pads are connected to the hole wall of the through-hole by glue; A reinforcing wire is fixedly arranged on a side of the adjacent flexible film away from the pad, and two ends of the reinforcing wire are connected to two pads of the flexible film.

2. The ultra-long transparent flexible screen conductive substrate according to claim 1, characterized in that: The two pads are spaced apart along the length direction of the flexible film.

3. The ultra-long transparent flexible screen conductive substrate according to claim 1, characterized in that: The pad is connected to the membrane circuit by soldering with tin wire.

4. The ultra-long transparent flexible screen conductive substrate according to claim 1, characterized in that: The reinforcement conductor is a multi-core copper wire, and two ends of the multi-core copper wire are welded and connected to the two pads.

5. The ultra-long transparent flexible screen conductive substrate according to claim 1, characterized in that: The reinforcing wire is arranged along the length direction of the flexible film.

6. A method for preparing an ultra-long transparent flexible screen conductive substrate as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: Two pads are bonded to the tail end of the multi-section flexible film, the two pads are connected to one end of the membrane circuit on the flexible film, and two through holes are opened at the head end of the multi-section flexible film so that the other end of the membrane circuit extends into the through holes; inserting the two pads into two through-holes of adjacent flexible films; Connecting the pad to the hole wall of the through hole by glue dispensing; electrically connecting the two pads to the other end of the film circuit of the adjacent flexible film; A reinforcing wire is fixedly arranged on one side of the adjacent flexible film away from the welding pad, and two ends of the reinforcing wire are connected to the two welding pads of the flexible film.

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