FPC, touch module and electronic equipment

Abstract

The utility model discloses an FPC (Flexible Printed Circuit), a touch module and electronic equipment, and the FPC comprises an FPC body which is connected with a first FPC extension part through a bending area; a through hole is formed in the bending area; when the through hole is a round hole, the diameter of the round hole is equal to the bending diameter of the bending area; when the through hole is an elliptical hole, the short diameter of the elliptical hole is perpendicular to the bending direction; and the short diameter of the elliptical hole is equal to the bending diameter of the bending area. The through hole is formed in the bending area, so that accurate bending and positioning can be realized when a target position is not provided with an alignment line or a positioning accessory.

Description

Technical Field

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

[0002] Most electronic products now use flexible printed circuits (FPCs), which are required to be bent during the assembly of touch display devices. However, when bending some FPCs, there are no alignment lines or positioning accessories at the target position, which makes it difficult to assemble the whole machine. FPC bending often fails to meet customer requirements, resulting in problems with the assembly of the whole machine.

[0003] How to solve the above-mentioned technical problems has become a technical problem that needs to be solved urgently in the industry. Summary of the invention

[0004] In order to at least solve the above technical problems, the purpose of the utility model is to provide an FPC, which can be accurately bent and positioned when there are no alignment lines or positioning accessories at the target position by opening a through hole in the bending area.

[0005] In order to achieve the above-mentioned object, the FPC provided by the utility model comprises:

[0006] An FPC body, the FPC body being connected to the first FPC extension portion through a bending area;

[0007] The bending area is provided with a through hole;

[0008] When the through hole is a circular hole, the diameter of the circular hole is equal to the bending diameter of the bending zone;

[0009] When the through hole is an elliptical hole, the short diameter of the elliptical hole is perpendicular to the bending direction;

[0010] The minor diameter of the elliptical hole is equal to the bending diameter of the bending zone.

[0011] Furthermore, a double-sided adhesive is provided on the surface of the first FPC extension portion.

[0012] Furthermore, on the first FPC extension portion, the base material layer on the surface opposite to the surface on which the double-sided adhesive is attached is in a bare state.

[0013] Furthermore, arc-shaped grooves are provided at both ends of the bending area.

[0014] Furthermore, the diameter of the arc-shaped groove is equal to the bending diameter of the bending zone.

[0015] Furthermore, a plug-in interface is provided at one end of the FPC body.

[0016] Furthermore, a first reinforcing plate is provided on the FPC body.

[0017] Furthermore, an extension portion is provided at one end of the FPC body;

[0018] A second reinforcing plate is provided at one end of the extension portion away from the FPC body.

[0019] To achieve the above objectives, the present application also provides a touch module, including the above FPC.

[0020] To achieve the above objectives, the present application also provides an electronic device, including the above FPC.

[0021] The FPC of the embodiment of the present application includes: an FPC body, which is connected to the first FPC extension through a bending zone; a through hole is provided in the bending zone; when the through hole is a circular hole, the diameter of the circular hole is equal to the bending diameter of the bending zone; when the through hole is an elliptical hole, the short diameter of the elliptical hole is perpendicular to the bending direction; the short diameter of the elliptical hole is equal to the bending diameter of the bending zone. By opening a through hole in the bending zone, accurate bending and positioning can be achieved even when there is no alignment line or positioning accessories at the target position; arc grooves are provided at both ends of the bending zone, which further facilitates bending and makes the bending positioning more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0023] Figure 1 is a schematic diagram of the FPC structure of an embodiment of the present application;

[0024] Figure 2 It is a schematic diagram of the bending portion structure of an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 101-FPC body; 102-first reinforcement plate; 103-extension part; 104-second reinforcement plate; 105-silk screen line; 106-plug interface; 107-bending area; 1071-arc groove; 1072-through hole; 108-double-sided adhesive. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0028] It should be understood that the various steps described in the method implementation of the present application can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this respect.

[0029] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0030] It should be noted that the modifications of "one" and "plurality" mentioned in this application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more". "Plurality" should be understood as two or more.

[0031] An embodiment of the present application provides an FPC, including:

[0032] An FPC body, the FPC body being connected to the first FPC extension portion through a bending area;

[0033] The bending area is provided with a through hole;

[0034] When the through hole is a circular hole, the diameter of the circular hole is equal to the bending diameter of the bending zone;

[0035] When the through hole is an elliptical hole, the short diameter of the elliptical hole is perpendicular to the bending direction;

[0036] The minor diameter of the elliptical hole is equal to the bending diameter of the bending zone.

[0037] Example

[0038] Figure 1 is a schematic diagram of the FPC structure of an embodiment of the present application, Figure 2 This is a schematic diagram of the bending portion structure of an embodiment of the present application. Figure 1-2 , the FPC of the embodiment of the present application is described in detail.

[0039] In some exemplary embodiments, FPC (Flexible Printed Circuit) is a highly reliable and excellently flexible printed circuit board made of polyimide or polyester film as a substrate.

[0040] In some exemplary embodiments, the FPC has the characteristics of high wiring density, light weight, thin thickness, and good bendability.

[0041] The FPC of the embodiment of the utility model includes: an FPC body 101 .

[0042] In some exemplary embodiments, the FPC body 101 includes a substrate layer and a PI layer.

[0043] In some exemplary embodiments, PI (Polymide, Chinese name polyimide); polyimide is an organic polymer material that is resistant to high temperatures and has good flexibility, and is one of the main materials for flexible circuit boards.

[0044] In some exemplary embodiments, the FPC body 101 is connected to the first FPC extension portion via the bending region 107 .

[0045] In some exemplary embodiments, the bending zone 107 is provided with a through hole 1072. As required, there may be one through hole 1072 or multiple intermittently connected through holes 1072 on the bending zone 107, that is, it may be determined according to the actual length size of the bending portion.

[0046] In some exemplary embodiments, when the through hole 1072 is a circular hole, the diameter of the circular hole is equal to the bending diameter of the bending zone 107; for example, when the bending diameter of the bending zone 107 is 1 mm, the diameter of the circular hole is 1 mm.

[0047] In some exemplary embodiments, when the through hole 1072 is an elliptical hole, the short diameter of the elliptical hole is perpendicular to the bending direction of the bending zone 107, which can be understood as the bending zone 107 is bent along the long diameter of the elliptical hole.

[0048] In some exemplary embodiments, the elliptical hole is a racetrack-shaped through hole.

[0049] In some exemplary embodiments, the minor diameter of the elliptical hole is equal to the bending diameter of the bending zone 107 .

[0050] In some exemplary embodiments, a double-sided adhesive 108 is provided on the surface of the first FPC extension portion, and the double-sided adhesive 108 is provided for bonding after bending.

[0051] In some exemplary embodiments, on the first FPC extension, the base material layer on the opposite side to the double-sided adhesive 108 is in a bare state. For example, when the double-sided adhesive 108 is affixed to the front side of the first FPC extension, there is an exposed area on the back side of the first FPC extension, and the base material layer in the exposed area is in a bare state, that is, the PI layer on the first FPC extension is removed at this location.

[0052] In some exemplary embodiments, arc-shaped grooves 1071 are provided at both ends of the bending region 107 .

[0053] In some exemplary embodiments, the diameter of the arc-shaped groove 1071 is equal to the bending diameter of the bending zone 107 . For example, when the bending diameter of the bending zone 107 is 1 mm, the diameter of the arc-shaped groove 1071 is also 1 mm.

[0054] In some exemplary embodiments, an insertion port 106 is disposed at one end of the FPC body 101 .

[0055] In some exemplary embodiments, a first reinforcing plate 102 is disposed on the FPC body 101 .

[0056] In some exemplary embodiments, an extension portion 103 is further provided at one end of the FPC body 101 .

[0057] In some exemplary embodiments, a second reinforcing plate 104 is disposed at one end of the extension portion 103 away from the FPC body 101 .

[0058] In some exemplary embodiments, the first reinforcement plate 102 includes a PI reinforcement plate, a metal reinforcement plate, etc., wherein the metal reinforcement plate further includes a steel sheet reinforcement plate.

[0059] In some exemplary embodiments, the second reinforcement plate 104 is a PI reinforcement plate.

[0060] In some exemplary embodiments, as needed, the first reinforcement plate 102 and the second reinforcement plate 104 can be reinforcement plates of the same material or reinforcement plates of different materials. For example, when the first reinforcement plate 102 is a steel sheet reinforcement plate, the second reinforcement plate 104 is a PI reinforcement plate.

[0061] In some exemplary embodiments, a silk-screen line 105 is further provided at the end of the extension portion 103 .

[0062] Example 2

[0063] Embodiment 2 is a touch control module, comprising the FPC of the above embodiment.

[0064] In some exemplary embodiments, the touch module is, for example, a touch display module.

[0065] Example 3

[0066] Embodiment 3 is an electronic device including the FPC of the above embodiment.

[0067] In some exemplary embodiments, as needed, the electronic device according to the embodiment of the present application further includes the touch module according to the above embodiment.

[0068] Although the implementation methods disclosed in the present invention are as above, the contents are only implementation methods adopted to facilitate the understanding of the present invention, and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the implementation form and details without departing from the spirit and scope disclosed in the present invention, but the scope of patent protection of the present invention shall still be based on the scope defined in the attached claims.

Claims

1. An FPC, characterized in that: include: An FPC body, wherein the FPC body is connected to the first FPC extension portion through a bending area; The bending area is provided with a through hole; When the through hole is a circular hole, the diameter of the circular hole is equal to the bending diameter of the bending zone; When the through hole is an elliptical hole, the short diameter of the elliptical hole is perpendicular to the bending direction; The short diameter of the elliptical hole is equal to the bending diameter of the bending zone.

2. The FPC according to claim 1, characterized in that: A double-sided adhesive is provided on the surface of the first FPC extension portion.

3. The FPC according to claim 2, characterized in that: On the first FPC extension portion, the base material layer on the surface opposite to the surface on which the double-sided adhesive is attached is exposed.

4. The FPC according to claim 3, characterized in that: Arc grooves are provided at both ends of the bending area.

5. The FPC according to claim 4, characterized in that: The diameter of the arc-shaped groove is equal to the bending diameter of the bending zone.

6. The FPC according to claim 5, characterized in that: One end of the FPC body is provided with a plug-in interface.

7. The FPC according to claim 6, characterized in that: The FPC body is provided with a first reinforcing plate.

8. The FPC according to claim 7, characterized in that: One end of the FPC body is also provided with an extension portion; A second reinforcing plate is disposed at one end of the extension portion away from the FPC body.

9. A touch module, characterized in that: The FPC comprises the FPC described in any one of claims 1 to 8.

10. An electronic device, characterized in that: The FPC comprises the FPC described in any one of claims 1 to 8.

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