FPC and display module

Abstract

The FPC provided by the embodiment of the utility model comprises a bending part, the left side and the right side of the bending part are respectively provided with a first expansion part and a second expansion part, the first expansion part and the second expansion part are arranged on the same horizontal line, and the FPC is bent along a connecting line between the first expansion part and the second expansion part. According to the utility model, the two sides of the bending part of the FPC are respectively provided with the first extension part and the second extension part, so that the stress of the bending part can be effectively released, the tearing phenomenon caused by scratching of the bending part is avoided, and the bending part is also prevented from scratching personnel and other materials such as foam.

Description

Technical Field

[0001] The utility model relates to the field of FPC, in particular to an FPC and a display module. Background Art

[0002] In the field of display technology, FPC (Flexible Printed Circuit) is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as a substrate. Due to its characteristics, it is often used to connect TFT (Thin Film Transistor) and other devices, such as clients.

[0003] In order to avoid damage to the FPC structure when the display module is shipped, the FPC connected to the TFT needs to be bent and fixed on the back of the display module before shipment. However, the existing FPC structure has a bent position that will scratch people and other materials such as foam, and the stress at the bent position has nowhere to be released, which can easily lead to tearing of the bent position. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an FPC and a display module.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, an embodiment of the utility model provides an FPC, comprising a bending portion, wherein a first extension portion and a second extension portion are respectively arranged on the left and right sides of the bending portion, the first extension portion and the second extension portion are arranged on a horizontal line, and the FPC is bent along the line connecting the first extension portion and the second extension portion.

[0007] As a preferred improvement of the present invention, the first extension portion and the second extension portion are both semicircular.

[0008] As a preferred improvement of the present invention, when the FPC is bent, the first extension portion and the second extension portion are both in a folded state.

[0009] As a preferred improvement of the present invention, the FPC further comprises a component area, and the electronic components of the FPC are all arranged in the component area.

[0010] As a preferred improvement of the present invention, a board-to-board connector is provided on the component area, and the board-to-board connector is used to connect other FPCs.

[0011] As a preferred improvement of the present invention, the FPC further comprises a first gold finger, wherein the first gold finger is arranged at one end of the FPC close to the bending portion, and the first gold finger is used to connect the TFT glass.

[0012] As a preferred improvement of the present invention, the FPC further comprises a second gold finger, wherein the second gold finger is arranged at the other end of the FPC away from the bending portion, and the second gold finger is used for connecting to the client.

[0013] As a preferred improvement of the present invention, the FPC uses polyester film or polyimide as a substrate.

[0014] As a preferred improvement of the present invention, the FPC further comprises a PI reinforcing plate, and the PI reinforcing plate covers the bending area, the first extension portion and the second extension portion.

[0015] In a second aspect, an embodiment of the present utility model further provides a display module, comprising the FPC provided by any embodiment of the present utility model.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] In the utility model, the first extension part and the second extension part are respectively arranged on both sides of the FPC bending part, which can release the stress of the bending part and avoid the tearing of the bending part; the semicircular shape of the first / second extension part can make the stress distribution more uniform; the first / second extension part is folded, so that after the FPC is bent, no structural interference will be caused to the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an FPC provided by the utility model;

[0019] Figure 2 A schematic diagram of the local structure of an FPC provided by the utility model;

[0020] Figure 3 It is a schematic diagram of the bending condition of the bending portion of the FPC in the present invention during assembly. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] See also Figure 1 , the utility model embodiment provides a technical solution:

[0024] In the first aspect, an embodiment of the utility model provides an FPC, including a bending portion 100, wherein a first extension portion 210 and a second extension portion 220 are respectively arranged on the left and right sides of the bending portion 100, the first extension portion 210 and the second extension portion 220 are arranged on a horizontal line, and the FPC is bent along the line between the first extension portion 210 and the second extension portion 220.

[0025] In the utility model, a first extension part and a second extension part are respectively arranged on both sides of the FPC bending part, which can effectively release the stress of the bending part and avoid tearing caused by scratches on the bending part, while also avoiding scratches on people and other materials such as foam.

[0026] As a preferred improvement of the present invention, the first extension part 210 and the second extension part 220 are both semicircular. The semicircular shape of the first / second extension part can make the stress distribution more uniform and improve the anti-tearing effect.

[0027] As a preferred improvement of the present invention, refer to Figure 2 When the FPC is bent, the first extension part 210 and the second extension part 220 are both in a folded state. The above arrangement ensures that the bending of the FPC will not cause structural interference to the installation. Figure 3 Schematic diagram of the bending of the bending portion of the FPC in the present invention during assembly, refer to Figure 3 When the FPC in the present invention is assembled, the bending portion will be bent along the bottom edge of the backlight plastic frame 1, and the first extension portion 210 and the second extension portion 220 can be bent and set after being folded outward, or can be bent and set after being folded inward.

[0028] As a preferred improvement of the present invention, refer to Figure 1 The FPC further comprises a component area 300, and the electronic components of the FPC are all arranged in the component area 300. The above arrangement enables only the bending portion 100 to be bent when the FPC is bent, thereby avoiding the risk of tearing and falling of the electronic components caused by bending.

[0029] As a preferred improvement of the present invention, refer to Figure 3The component area 300 is provided with a board-to-board connector 310, and the board-to-board connector 310 is used to connect other FPCs 320. By connecting other FPCs, for example, the FPC in the embodiment of the utility model is used to connect the TFT glass, and other FPCs can be connected to the backlight. Through the connection between the two, the display module can be connected to the client through only one port, which simplifies the port structure.

[0030] As a preferred improvement of the present invention, the FPC further comprises a first gold finger 400, which is arranged at one end of the FPC close to the bending portion 100, and is used to connect to the TFT glass.

[0031] As a preferred improvement of the present invention, the FPC further comprises a second gold finger 500, which is arranged at the other end of the FPC away from the bending portion 100, and is used for connecting to the client.

[0032] As a preferred improvement of the present invention, the FPC uses polyester film or polyimide as a substrate.

[0033] As a preferred improvement of the present invention, the FPC further comprises a PI reinforcing plate, which covers the bending area, the first extension part and the second extension part. The PI reinforcing plate improves the strength of the bending part and further improves the anti-tearing effect of the bending part.

[0034] In a second aspect, the embodiment of the utility model further provides a display module, including the FPC provided by any embodiment of the utility model. In addition, the above FPC can also be applied to other electronic devices that require FPC bending, and the beneficial effects brought by it can refer to the beneficial effects described in the above embodiments.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An FPC, characterized in that: It comprises a bending portion, wherein a first extension portion and a second extension portion are respectively arranged on the left and right sides of the bending portion, the first extension portion and the second extension portion are arranged on a horizontal line, and the FPC is bent along the line connecting the first extension portion and the second extension portion.

2. The FPC according to claim 1, characterized in that: The first extension portion and the second extension portion are both semicircular.

3. The FPC according to claim 1, characterized in that: When the FPC is bent, the first extension portion and the second extension portion are both in a folded state.

4. The FPC according to claim 1, characterized in that: It also includes a component area, and the electronic components of the FPC are all arranged in the component area.

5. The FPC according to claim 4, characterized in that: The component area is provided with a board-to-board connector, and the board-to-board connector is used to connect other FPCs.

6. The FPC according to claim 1, characterized in that: It also includes a first gold finger, which is arranged at one end of the FPC close to the bending portion, and is used to connect to the TFT glass.

7. The FPC according to claim 1, characterized in that: It also includes a second gold finger, which is arranged at the other end of the FPC away from the bending portion, and is used to connect to the client.

8. The FPC according to claim 1, characterized in that: The FPC uses polyester film or polyimide as a base material.

9. The FPC according to claim 1, characterized in that: It also includes a PI reinforcing plate, which covers the bending portion, the first extension portion and the second extension portion.

10. A display module, characterized in that: An FPC comprising any one of claims 1 to 9.

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