TFT binding position FPC flexible circuit board anti-loosening structure

Abstract

The utility model discloses an anti-loosening structure for a flexible printed circuit (FPC) at a thin film transistor (TFT) binding position, which comprises a TFT display screen and the FPC bound on the TFT display screen, and a connecting protrusion of the FPC on the binding position of the TFT display screen extends towards two sides in a T shape. The FPC flexible circuit board is designed to be T-shaped at the binding position end and extends towards two sides, and the stress direction of the FPC flexible circuit board is changed, so that the concentrated stress condition of the binding position of the FPC flexible circuit board is reduced, the FPC flexible circuit board is protected from being pulled, loosened and torn at the two sides of the binding position, safe use of a TFT display screen is facilitated, and the service life of the TFT display screen is prolonged. And the production efficiency and the transportation efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a TFT binding position FPC flexible circuit board anti-loosening structure. Background Art

[0002] The TFT binding PAD and the FPC flexible circuit board are fixed by hot pressing with conductive tape. During the production process, employees cannot avoid pulling and bending the FPC flexible circuit board when carrying and testing. When the FPC flexible circuit board is bent to the back of the iron frame, the FPC flexible circuit board and the TFT binding position may become loose or even tear, resulting in display abnormalities (such as Figure 1 and Figure 2 ).

[0003] Use conventionally designed FPC flexible circuit board binding positions, such as Figure 1 and 2 As shown in the figure, when the FPC flexible circuit board is pulled or bent, the stress will act on the binding position of the FPC flexible circuit board in the direction of the red arrow, which may cause the risk of loosening or even tearing, causing problems such as a black screen on the TFT display, which is not conducive to production efficiency and transportation efficiency.

[0004] For example, the Chinese utility model patent (CN204408754U) discloses an anti-detachment connection structure for connecting an FPC flexible circuit board to a PCB, including an FPC flexible circuit board and a PCB, wherein the FPC flexible circuit board is inserted into the PCB, and is characterized in that: it also includes a lock; a first hole is provided at the connection portion between the PCB and the FPC flexible circuit board on the PCB; a second hole is provided at the connection portion between the PCB and the FPC flexible circuit board on the FPC flexible circuit board; the lock passes through the second hole and is inserted into the first hole. By applying the technical solution of this embodiment, the end of the FPC flexible circuit board is buckled at the connection portion of the PCB through the lock, thereby preventing the FPC flexible circuit board from loosening; by applying this technical solution, the FPC flexible circuit board can withstand numerous folding and stretching when inserted into the PCB, and is not easy to loosen, thereby ensuring the smoothness of the circuit and providing users with usage protection.

[0005] However, when the present inventor implemented this device, he found the following defects: the structure is too complicated and not conducive to mass production. Utility Model Content

[0006] Based on this, it is necessary to provide an anti-loosening structure for the FPC flexible circuit board at the TFT binding position to address the above-mentioned technical problems. The FPC flexible circuit board is designed in a "T" shape at the binding position end to extend to both sides, thereby changing the stress direction of the FPC flexible circuit board. This reduces the concentrated force at this position of the FPC flexible circuit board binding position, thereby protecting the FPC flexible circuit board from being pulled loose and torn on both sides of the binding position. The risk is beneficial to the safe use of TFT display screens, and is beneficial to production efficiency and transportation efficiency.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A TFT binding position FPC flexible circuit board anti-loosening structure.

[0009] The TFT binding position FPC flexible circuit board anti-loosening structure specifically includes:

[0010] A TFT display screen and an FPC flexible circuit board bound to the TFT display screen, wherein the connection protrusion of the FPC flexible circuit board at the binding position of the TFT display screen is in a "T" shape and extends to both sides.

[0011] As a preferred implementation of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model, the connection protrusion of the FPC flexible circuit board is in a "T" shape and the single side length extending to both sides is 5-10mm.

[0012] As a preferred implementation of the TFT binding position FPC flexible circuit board anti-loosening structure provided by the utility model, the TFT binding position FPC flexible circuit board anti-loosening structure also includes a protective film covering the FPC flexible circuit board on the binding position.

[0013] As a preferred implementation of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model, the thickness of the protective film is 0.05~0.1mm.

[0014] As a preferred implementation of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model, alignment marks for assisting the alignment of the protective film are arranged on both sides of the FPC flexible circuit board.

[0015] As a preferred implementation of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model, the alignment mark has an "L" shape.

[0016] As a preferred implementation of the TFT binding position FPC flexible circuit board anti-loosening structure provided by the utility model, an anti-static bump is arranged at the lower back of the TFT display screen.

[0017] As a preferred implementation of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model, the length of the anti-static protrusion is greater than the length of the FPC flexible circuit board.

[0018] As a preferred implementation of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model, a reinforcing plate is provided at the back end of the FPC flexible circuit board.

[0019] As a preferred implementation of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model, an adhesive layer is provided at one end of the reinforcing plate away from the FPC flexible circuit board.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides a TFT binding position FPC flexible circuit board anti-loosening structure. The FPC flexible circuit board is designed in a "T" shape at the binding position end to extend to both sides, thereby changing the stress direction of the FPC flexible circuit board, thereby reducing the concentrated force at the binding position of the FPC flexible circuit board, thereby protecting the FPC flexible circuit board from being pulled loose and torn on both sides of the binding position. The risk is hidden, which is beneficial to the safe use of the TFT display screen and is beneficial to production efficiency and transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the prior art;

[0024] Figure 2 for Figure 2 A local enlarged view of point A;

[0025] Figure 3 A schematic diagram of the structure of the TFT binding FPC flexible circuit board anti-loosening structure provided by the utility model;

[0026] Figure 4 for Figure 3 A local enlarged view of point B;

[0027] Figure 5 for Figure 3 Rear view of

[0028] Figure 6 This is a schematic structural diagram of the reinforcement plate provided by the utility model.

[0029] The markings in the figure are as follows:

[0030] TFT display screen 1; FPC flexible circuit board 2; protective film 3; alignment mark 4; anti-static bump 5; reinforcement plate 6; adhesive layer 7. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the 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 embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] As in the background art, the FPC flexible circuit board binding position designed in a conventional manner is used, such as Figure 1 and 2 As shown in the figure, when the FPC flexible circuit board is pulled or bent, the stress will act on the binding position of the FPC flexible circuit board in the direction of the red arrow, which may cause the risk of loosening or even tearing, causing problems such as a black screen on the TFT display, which is not conducive to production efficiency and transportation efficiency.

[0033] In order to solve this technical problem, the utility model provides a TFT binding position FPC flexible circuit board anti-loosening structure.

[0034] Specifically, please refer to Figure 3-5 The anti-loosening structure of TFT binding FPC flexible circuit board specifically includes:

[0035] A TFT display screen 1 and an FPC flexible circuit board 2 bound to the TFT display screen 1; a connection protrusion of the FPC flexible circuit board 2 at the binding position of the TFT display screen 1 extends to both sides in a "T" shape.

[0036] The utility model provides a TFT binding position FPC flexible circuit board anti-loosening structure, the FPC flexible circuit board 2 is designed in a "T" shape at the binding position end to extend to both sides, so as to change the stress direction of the FPC flexible circuit board 2, thereby reducing the concentrated force situation at the binding position of the FPC flexible circuit board 2, so as to protect the FPC flexible circuit board 2 from being pulled loose and torn on both sides of the binding position. Hidden risks, which is beneficial to the safe use of the TFT display screen 1, and beneficial to production efficiency and transportation efficiency.

[0037] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings. Example 1

[0040] Please refer to Figure 3-5 A TFT binding position FPC flexible circuit board anti-loosening structure includes a TFT display screen 1 and an FPC flexible circuit board 2 bound to the TFT display screen 1. The connecting protrusion of the FPC flexible circuit board 2 on the binding position of the TFT display screen 1 is in a "T" shape and extends to both sides.

[0041] Through the above structural design, the FPC flexible circuit board 2 is designed in a "T" shape at the binding position end to extend to both sides, thereby changing the stress direction of the FPC flexible circuit board 2, thereby reducing the concentrated force at the binding position of the FPC flexible circuit board 2, thereby protecting the FPC flexible circuit board 2 from being pulled loose and torn on both sides of the binding position. Risk hazards are beneficial to the safe use of the TFT display screen 1, and to production efficiency and transportation efficiency.

[0042] Specifically, the connection protrusion of the FPC flexible circuit board 2 is in a "T" shape, and the length of a single side extending to both sides is 5-10 mm.

[0043] Through the above structural design, in this embodiment, the connection protrusion of the FPC flexible circuit board 2 is in a "T" shape and extends to both sides with a single side length of 7 mm. It can also be other sizes under different circumstances. No excessive restrictions are made here. The FPC flexible circuit board 2 is designed in a "T" shape at the binding end and extends to both sides to change the stress direction of the FPC flexible circuit board 2, thereby reducing the concentrated force at the binding position of the FPC flexible circuit board 2, thereby protecting the FPC flexible circuit board 2 from being pulled loose and torn on both sides of the binding position. Risk hazards are beneficial to the safe use of the TFT display screen 1, and to production efficiency and transportation efficiency.

[0044] Specifically, the TFT binding position FPC flexible circuit board anti-loosening structure further includes a protective film 3 covering the FPC flexible circuit board 2 on the binding position.

[0045] Through the above structural design, the purpose of the protective film 3 is to prevent the FPC flexible circuit board 2 from being torn during the employee's handling and bending process, which is beneficial to protect the FPC flexible circuit board 2 from being pulled and damaged, and can also further prevent the FPC flexible circuit board 2 from being scratched.

[0046] Specifically, the thickness of the protective film 3 is 0.05-0.1 mm.

[0047] Through the above structural design, in this embodiment, the thickness of the protective film 3 is 0.05 mm, and it may be other sizes in different situations, which are not excessively limited here.

[0048] Specifically, alignment marks 4 for assisting the alignment of the protective film 3 are provided on both sides of the FPC flexible circuit board 2 .

[0049] Through the above structural design, alignment marks 4 for assisting in aligning the protective film 3 are provided on both sides of the binding position. The alignment marks 4 are used for manually or robotically aligning the FPC flexible circuit board 2 with the protective film 3 .

[0050] Specifically, the alignment mark 4 is in an "L" shape.

[0051] Through the above-mentioned structural design, the alignment mark 4 is used to accurately attach the protective film 3 to the iron frame to prevent the protective film 3 from being skewed, thereby avoiding affecting the next step of the process. In the present embodiment, the alignment mark 4 is in the shape of an "L" letter, and may be in other shapes under different circumstances, such as a cross shape, etc. The alignment mark 4 may be a silk-screened white oil line or a carved metal line. Example 2

[0052] The TFT binding position FPC flexible circuit board anti-loosening structure provided in Example 1 is further optimized, specifically, as follows Figure 3-5As shown, an anti-static bump 5 is provided at the lower back of the TFT display screen 1 .

[0053] Specifically, the length of the anti-static bump 5 is greater than the length of the FPC flexible circuit board 2 .

[0054] Through the above structural design, the anti-static bump 5 is provided to prevent the FPC flexible circuit board 2 from falling off due to excessive bending during the bending process, which is beneficial to strengthen the connection of the FPC flexible circuit board 2 at the binding position. Example 3

[0055] The TFT binding position FPC flexible circuit board anti-loosening structure provided in Example 1 or 2 is further optimized, such as Figure 6 As shown, a reinforcing plate 6 is provided at the back end of the FPC flexible circuit board 2 .

[0056] Through the above structural design, the reinforcing plate 6 is widely used in the FPC flexible circuit board 2 in electronic products. The reinforcing plate 6 mainly solves the flexibility of the FPC flexible circuit board 2, improves the strength of the plug-in part, and facilitates the overall assembly of the product.

[0057] Specifically, an adhesive layer 7 is provided at one end of the reinforcing plate 6 away from the FPC flexible circuit board 2 .

[0058] Through the above structural design, the adhesive layer 7 is used to assist the reinforcing plate 6 to be grounded after the FPC flexible circuit board 2 is bent and bonded to the iron frame.

[0059] The beneficial effects of the TFT binding position FPC flexible circuit board anti-loosening structure provided by the utility model are as follows:

[0060] The FPC flexible circuit board 2 is designed in a "T" shape at the binding end to extend to both sides, changing the stress direction of the FPC flexible circuit board 2, thereby reducing the concentrated force at the binding position of the FPC flexible circuit board 2, thereby protecting the FPC flexible circuit board 2 from being pulled loose and torn on both sides of the binding position. Risk hazards are beneficial to the safe use of the TFT display screen 1, and to production efficiency and transportation efficiency.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A TFT binding position FPC flexible circuit board anti-loosening structure, characterized in that: It comprises a TFT display screen (1), and an FPC flexible circuit board (2) bound to the TFT display screen (1), wherein a connection protrusion of the FPC flexible circuit board (2) at the binding position of the TFT display screen (1) is in a "T" shape and extends to both sides.

2. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 1 is characterized in that: The connection protrusion of the FPC flexible circuit board (2) is in a "T" shape, and the length of a single side extending to both sides is 5-10 mm.

3. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 2 is characterized in that: The TFT binding position FPC flexible circuit board anti-loosening structure further comprises a protective film (3) covering the FPC flexible circuit board (2) at the binding position.

4. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 3 is characterized in that: The thickness of the protective film (3) is 0.05-0.1 mm.

5. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 4 is characterized in that: Alignment marks (4) for assisting in aligning the protective film (3) are provided on both sides of the FPC flexible circuit board (2).

6. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 5, characterized in that: The alignment mark (4) is in the shape of an "L".

7. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 6 is characterized in that: An anti-static bump (5) is provided at the lower back of the TFT display screen (1).

8. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 7 is characterized in that: The length of the anti-static protrusion (5) is greater than the length of the FPC flexible circuit board (2).

9. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 1, characterized in that: A reinforcing plate (6) is provided at the rear end of the FPC flexible circuit board (2).

10. The TFT binding position FPC flexible circuit board anti-loosening structure according to claim 9, characterized in that: An adhesive layer (7) is provided at one end of the reinforcing plate (6) away from the FPC flexible circuit board (2).

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