Backlight FPC soldering reinforced module

Abstract

The utility model embodiment belongs to display module technical field. The utility model still relates to a module that back light FPC welds and reinforces, include: display module main part and with display module main body binding main screen FPC, still be connected with back light FPC main body between main screen FPC and display module main part, there is reinforcing part between back light FPC main body and main screen FPC, reinforcing part includes setting first fixed pad at the back of main screen FPC and setting second fixed pad at the back of back light FPC main body, first fixed pad and second fixed pad are connected together, the application is through setting second fixed pad at the back of back light FPC main body, and setting first fixed pad at the corresponding position on the back of main screen FPC, through the welding of first fixed pad and second fixed pad, realized the fixation of back light FPC main body back, this design enhanced the connection intensity of main screen FPC and back light FPC main body, reduced the phenomenon that the connection between main screen FPC and back light FPC main body happened to fall off when being stressed.

Description

Technical Field

[0001] This utility model relates to the field of display module technology, and more specifically, to a backlight FPC welding and reinforcement module. Background Technology

[0002] In today's highly information-driven era, electronic devices have become an indispensable part of people's daily life and work. Among them, the display screen, as an important output component of electronic devices, directly affects the user experience in terms of its performance and reliability. The backlight FPC, as a key component connecting the display screen and the backlight module, undertakes the important task of transmitting power and signals. However, in practical applications, the welding stability of the backlight FPC has become a technical problem that urgently needs to be solved.

[0003] Traditional backlight FPC soldering methods often focus only on the connection of the front pads. This involves placing pads on the front of the backlight FPC and the main FPC and soldering them together to achieve an electrical connection. However, this method has a significant drawback: it neglects the design of the mounting pads on the back of the backlight FPC. In actual use, electronic devices may be subjected to various external forces, such as vibration and impact. These forces can easily cause the solder joints between the backlight FPC and the main FPC to loosen or even detach. Detachment of the backlight FPC can lead to backlight failure, affecting the normal display function of the electronic device. Therefore, we propose an improved backlight FPC soldering reinforcement module. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is that the backlight FPC lacks fixation on the back side and is easy to detach from the main FPC.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A backlight FPC welding reinforcement module includes: a display module body and a main screen FPC bound to the display module body. A backlight FPC body is also connected between the main screen FPC and the display module body. A reinforcement member is provided between the backlight FPC body and the main screen FPC. The reinforcement member includes a first fixing pad disposed on the back of the main screen FPC and a second fixing pad disposed on the back of the backlight FPC body. The first fixing pad and the second fixing pad are connected together. This application achieves fixation of the back of the backlight FPC body by setting a second fixing pad on the back of the backlight FPC body and a corresponding first fixing pad on the back of the main screen FPC, and by welding the first and second fixing pads. This design enhances the connection strength between the main screen FPC and the backlight FPC body, reduces the phenomenon of detachment of the connection between the main screen FPC and the backlight FPC body under stress, and thus extends the product's service life.

[0007] As an improvement of this utility model, the first fixed pad and the second fixed pad are connected by soldering.

[0008] As an improvement of this utility model, the welding joint between the first fixed pad and the second fixed pad is coated with insulating adhesive.

[0009] As an improvement of this utility model, both the first fixed pad and the second fixed pad are plated with a nickel-gold layer.

[0010] As an improvement of this utility model, the shape of the second fixed pad is any one of a circle, a square, or an ellipse.

[0011] As an improvement of this utility model, a notch is provided on the main body of the display module, and the first fixing pad is located around the notch.

[0012] As an improvement of this utility model, the number of the fasteners is at least two.

[0013] As an improvement of this utility model, a connector is provided between the front of the main screen FPC and the backlight FPC body, and the connector is used to realize the connection between the backlight FPC body and the main screen FPC.

[0014] As an improvement of this utility model, the connector includes a second pad disposed on the backlight FPC body and a first pad disposed on the main screen FPC, wherein the first pad and the second pad are soldered together.

[0015] As an improvement of this utility model, a driver IC is also bound to the main body of the display module.

[0016] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0017] To address the issue of insufficient back-side fixation in existing backlight FPCs, which makes them prone to detaching from the main FPC, this application provides a second fixing pad on the back of the backlight FPC body and a corresponding first fixing pad on the back of the main screen FPC. By welding the first and second fixing pads together, the back of the backlight FPC body is secured. This design enhances the connection strength between the main screen FPC and the backlight FPC body, reduces the likelihood of detachment under stress, and thus extends the product's lifespan. Attached Figure Description

[0018] Figure 1 A rear view structural diagram of the backlight FPC welding reinforcement module provided in this application;

[0019] Figure 2 A schematic diagram of the structure of the first fixed pad provided in this application;

[0020] Figure 3 A schematic diagram of the structure of the second fixed pad provided in this application;

[0021] Figure 4 A front view structural diagram of the backlight FPC welding reinforcement module provided in this application;

[0022] Figure 5 A schematic diagram of the structure of the second pad provided in this application;

[0023] Figure 6 A schematic diagram of the structure of the first pad provided in this application.

[0024] The image shows:

[0025] 1. Display module body; 101. Driver IC; 2. Main screen FPC; 201. First pad; 3. Backlight FPC body; 301. Second pad; 4. First fixed pad; 5. Second fixed pad; 6. Notch. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The reference herein to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] As described in the background section, traditional backlight FPC soldering methods often only focus on the connection of the front pads. That is, by setting pads on the front of the backlight FPC and the main FPC and soldering them with solder, the electrical connection between the two is achieved. However, this soldering method has a significant drawback: it neglects the design of the fixing pads on the back of the backlight FPC. In actual use, electronic devices may be subjected to various external forces, such as vibration and impact. These external forces can easily cause the solder joint between the backlight FPC and the main FPC to loosen or even detach. The detachment of the backlight FPC will cause the backlight of the display screen to fail, affecting the normal display function of the electronic device.

[0028] To solve this technical problem, this utility model provides a backlight FPC welding reinforcement module.

[0029] For details, please refer to Figures 1-3 The backlight FPC welding reinforcement module specifically includes:

[0030] The display module body 1 and the main screen FPC2 bound to the display module body 1 are connected together. The main screen FPC2 and the display module body 1 are also connected by a backlight FPC body 3. There is a reinforcement between the backlight FPC body 3 and the main screen FPC2. The reinforcement includes a first fixing pad 4 set on the back of the main screen FPC2 and a second fixing pad 5 set on the back of the backlight FPC body 3. The first fixing pad 4 and the second fixing pad 5 are connected together.

[0031] The backlight FPC welding reinforcement module provided by this utility model provides a second fixing pad 5 on the back of the backlight FPC body 3 and a first fixing pad 4 at the corresponding position on the back of the main screen FPC 2. By welding the first fixing pad 4 and the second fixing pad 5, the back of the backlight FPC body 3 is fixed. This design enhances the connection strength between the main screen FPC 2 and the backlight FPC body 3, reduces the phenomenon of the connection between the main screen FPC 2 and the backlight FPC body 3 falling off under force, and thus extends the service life of the product.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] Embodiment 1 of the backlight FPC welding reinforcement module of this utility model

[0036] For details, please refer to Figures 1-3 The backlight FPC welding reinforcement module of this utility model includes: a display module body 1 and a main screen FPC 2 bound to the display module body 1. A backlight FPC body 3 is also connected between the main screen FPC 2 and the display module body 1. There is a reinforcement between the backlight FPC body 3 and the main screen FPC 2. The reinforcement includes a first fixing pad 4 disposed on the back of the main screen FPC 2 and a second fixing pad 5 disposed on the back of the backlight FPC body 3. The first fixing pad 4 and the second fixing pad 5 are connected together.

[0037] This design significantly enhances the connection strength between the main screen FPC2 and the backlight FPC body 3, reducing the likelihood of the connection between them detaching under stress and effectively extending the product's lifespan. By setting the first fixing pad 4 and the second fixing pad 5 on the back of the main screen FPC2 and the backlight FPC body 3 respectively and welding them, the original structure, which might only have a connection point on the front, is changed to double-sided fixing, dispersing the stress points and reducing stress concentration at a single connection point. This design conforms to mechanical principles, so that when the FPC is subjected to external force pulling or bending, multiple connection points share the force.

[0038] Furthermore, the first fixed pad 4 and the second fixed pad 5 are connected by soldering. From a production and processing perspective, soldering is a mature process with low equipment costs and simple operation, which can effectively improve production efficiency and reduce processing costs. In terms of connection performance, the intermetallic compound formed by soldering can provide a stable physical connection.

[0039] Embodiment 2 of the backlight FPC welding reinforcement module of this utility model

[0040] Furthermore, in this utility model of a backlight FPC welding reinforcement module, the welding joint between the first fixed solder pad 4 and the second fixed solder pad 5 is coated with insulating adhesive. The insulating adhesive is used to enhance the stability and insulation of the connection. The insulating adhesive can be epoxy resin, which has excellent physical properties. After curing, the hard colloid formed tightly wraps the solder joint, constraining the slight displacement of the solder joint between the first fixed solder pad 4 and the second fixed solder pad 5. At the same time, epoxy resin has good chemical stability and can effectively resist the erosion of the solder joint by external environmental factors.

[0041] Furthermore, both the first fixed pad 4 and the second fixed pad 5 are plated with a nickel-gold layer. During the soldering process, the good solderability of the nickel-gold layer allows the solder to wet the pad surface more evenly, reducing soldering defects such as cold solder joints and improving soldering quality and production yield.

[0042] Furthermore, the second fixed pad 5 can be any shape, such as circular, square, or elliptical. Different shapes of the second fixed pad 5 have different geometric characteristics. The symmetry of the circle makes it more uniform in terms of force in all directions, and it can better withstand external forces. The regular shape of the square is convenient for arraying on a plane, improving space utilization. The elliptical shape combines some features of the circle and the square, and can achieve effective connection under specific space constraints. The selection of these shapes is based on mechanical principles and spatial layout requirements, which can provide more possibilities for the design and production of display modules.

[0043] Furthermore, such as Figure 2 As shown, a notch 6 is provided on the main body 1 of the display module, and a first fixed solder pad 4 is located around the notch 6. The notch 6 is designed to improve the connection channel for soldering the first fixed solder pad 4 and the second fixed solder pad 5, thereby increasing the amount of solder filling and the bonding area, and thus improving the mechanical strength of the solder joint.

[0044] Furthermore, the number of fasteners is at least two, thus providing multiple fixing points; when subjected to external forces, multiple fixing points share the force, reducing the stress on each fixing point and reducing the risk of damage to a point due to stress concentration.

[0045] Embodiment 3 of the backlight FPC welding reinforcement module of this utility model

[0046] Furthermore, in the backlight FPC welding reinforcement module of this utility model, a connector is provided between the front of the main screen FPC2 and the backlight FPC body 3. The connector is used to realize the connection between the backlight FPC body 3 and the main screen FPC2.

[0047] Furthermore, such as Figures 4-6As shown, the connector includes a second pad 301 disposed on the backlight FPC body 3 and a first pad 201 disposed on the main screen FPC 2, and the first pad 201 is soldered to the second pad 301.

[0048] Furthermore, such as Figure 4 As shown, a driver IC 101 is also attached to the main body 1 of the display module.

[0049] In use, first solder the second pad 301 to the first pad 201, and then align the second fixed pad 5 with the first fixed pad 4 and solder them together.

[0050] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A backlight FPC welding-reinforced module, characterized in that, include: The main body of the display module (1) and the main screen FPC (2) bound to the main body of the display module (1) are connected to the main screen FPC (2) and the main body of the display module (1) by a backlight FPC (3). There is a reinforcement between the backlight FPC (3) and the main screen FPC (2). The reinforcement includes a first fixing pad (4) on the back of the main screen FPC (2) and a second fixing pad (5) on the back of the backlight FPC (3). The first fixing pad (4) and the second fixing pad (5) are connected together.

2. The backlight FPC welding reinforcement module according to claim 1, characterized in that, The first fixed pad (4) and the second fixed pad (5) are connected by soldering.

3. The backlight FPC welding reinforcement module according to claim 1 or 2, characterized in that, The joint between the first fixed pad (4) and the second fixed pad (5) is coated with insulating adhesive.

4. The backlight FPC welding reinforcement module according to claim 1, characterized in that, Both the first fixed pad (4) and the second fixed pad (5) are plated with a nickel-gold layer.

5. The backlight FPC welding reinforcement module according to claim 1, characterized in that, The shape of the second fixed pad (5) is any one of circle, square or ellipse.

6. The backlight FPC welding reinforcement module according to claim 1, characterized in that, The display module body (1) has a notch (6) and the first fixing pad (4) is located around the notch (6).

7. The backlight FPC welding reinforcement module according to claim 1, characterized in that, The number of fasteners is at least two.

8. The backlight FPC welding reinforcement module according to claim 1, characterized in that, A connector is provided between the front of the main screen FPC (2) and the backlight FPC body (3), and the connector is used to connect the backlight FPC body (3) and the main screen FPC (2).

9. The backlight FPC welding reinforcement module according to claim 8, characterized in that, The connector includes a second pad (301) disposed on the backlight FPC body (3) and a first pad (201) disposed on the main screen FPC (2), wherein the first pad (201) is soldered to the second pad (301).

10. The backlight FPC welding reinforcement module according to claim 1, characterized in that, The display module body (1) is also bound with a driver IC (101).

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