High-flexibility FPC and electronic equipment
By setting up vertical hole punching dotted lines and via structures on the FPC, the problem of insufficient bending softness of existing FPCs is solved, the softness and durability of electronic products are improved, the demand for smaller size is met, and the product competition is enhanced force.
Patent Information
- Application Number
- CN202420249065.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The existing FPCs are not soft enough when bending, making it difficult to meet the needs of smaller electronic products.
By setting several hole-punched dashed lines and vias on the FPC body, especially the hole-punched dashed lines are perpendicular to the side, and the vias are arranged along the hole-punched dashed lines, the softness of the bent part is increased, and the main body part and the bent part are in the bent part. Conducting columns and protective films are provided between them to enhance softness and durability.
It improves the softness of FPC, makes it easier to bend, meets the needs of smaller electronic products, and enhances the competitiveness of the product.
Smart Images

Figure CN222356596U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of FPC, in particular to a high-flexibility FPC and electronic equipment. Background Art
[0002] PFC (Flexible Printed Circuit Board) is a printed circuit made of a flexible insulating substrate. It can be bent, wound, and folded freely. It can withstand millions of dynamic bendings without damaging the wires. It can be arranged arbitrarily according to the spatial layout requirements and can be moved and stretched arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection, which is conducive to greatly reducing the size and weight of electronic products and is suitable for the development of electronic products towards high density, miniaturization, and high reliability. However, in order to meet the needs of more miniaturized electronic products, the softness of the bending part of FPC when it needs to be bent needs to be improved. Utility Model Content
[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-flexibility FPC and electronic equipment.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] In a first aspect, an embodiment of the utility model provides a highly flexible FPC, comprising: an FPC body, a plurality of punched dotted lines, and a plurality of via holes;
[0006] The FPC body comprises a first side and a second side, wherein the first side and the second side are parallel;
[0007] The plurality of punched imaginary lines are all perpendicular to the first side edge and the second side edge;
[0008] The plurality of via holes are arranged on the FPC body along the punching imaginary lines.
[0009] As a preferred improvement of the present invention, the FPC body includes a main body portion and a bending portion.
[0010] As a preferred improvement of the present invention, the circuit elements of the FPC are all arranged on the main body.
[0011] As a preferred improvement of the present invention, the plurality of punched dotted lines are all arranged at the bending portion.
[0012] As a preferred improvement of the present invention, the highly flexible FPC comprises: a first copper foil layer, a substrate and a second copper foil layer which are arranged in sequence.
[0013] As a preferred improvement of the present invention, the plurality of vias all include: a conducting column, and the conducting column is solder.
[0014] As a preferred improvement of the present invention, the conductive column connects the first copper foil layer and the second copper foil layer.
[0015] As a preferred improvement of the present invention, the high-flexibility FPC further includes a first protective film and a second protective film, wherein the first protective film, the first copper foil layer, the substrate, the second copper foil layer and the second protective film are arranged in sequence.
[0016] As a preferred improvement of the present invention, the high-flexibility FPC further includes a first connecting portion and a second connecting portion, wherein the first connecting portion is arranged at one end of the main body portion, and the second connecting portion is arranged at one end of the bending portion.
[0017] In a second aspect, an embodiment of the present invention further provides an electronic device, comprising a high-flexibility FPC as in any embodiment of the present invention.
[0018] Compared with the prior art, the advantages and positive effects of the utility model are:
[0019] In the utility model, a plurality of punched imaginary lines are perpendicular to the first side and the second side of the FPC body, and a plurality of vias are arranged on the FPC body along the punched imaginary lines. The arrangement of such vias makes the FPC near the punched imaginary lines easier to bend, increases the softness of the FPC, meets the needs of more miniaturized electronic products, and enhances the competitiveness of the products. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of the structure of a high-flexibility FPC provided by the utility model;
[0021] Figure 2 A schematic diagram of the structure of a high-flexibility FPC provided by the utility model;
[0022] Figure 3 A schematic diagram of the structure of a high-flexibility FPC provided by the utility model;
[0023] Figure 4 The present invention is a schematic structural diagram of an electronic device provided by the utility model. DETAILED DESCRIPTION
[0024] 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.
[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] 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.
[0028] First, see Figure 1 , the embodiment of the utility model provides a high-flexibility FPC, including: an FPC body 100, a plurality of punched dotted lines 200 and a plurality of vias 300;
[0029] The FPC body 100 includes a first side 110 and a second side 120 , and the first side 110 and the second side 120 are parallel;
[0030] The plurality of punching dotted lines 200 are all perpendicular to the first side edge 110 and the second side edge 120;
[0031] The plurality of via holes 300 are disposed on the FPC body 100 along the punching imaginary lines 200 .
[0032] The embodiment of the utility model makes the FPC near the punched dotted line easier to bend through the arrangement of the above-mentioned via holes, thereby increasing the softness of the FPC, meeting the need for more miniaturization of electronic products, and enhancing the competitiveness of the products.
[0033] Preferably, the utility model includes at least three punching imaginary lines, and each punching imaginary line has at least two via holes, which can more effectively increase the softness of the FPC.
[0034] As a preferred improvement of the present invention, refer to Figure 2 The FPC body 100 includes a main body portion 130 and a bending portion 140 .
[0035] As a preferred improvement of the present invention, the circuit components of the FPC are all arranged on the main body 130. This can avoid the circuit components from being damaged when the bending portion is bent.
[0036] As a preferred improvement of the present invention, refer to Figure 2 The plurality of punched dotted lines 200 are all disposed on the bending portion 140. When the FPC is in use, the main body is usually fixedly connected to other devices or modules, and is mainly bent through the bending portion, which can effectively increase the softness of the FPC.
[0037] As a preferred improvement of the present invention, refer to Figure 3 The highly flexible FPC includes: a first copper foil layer 410, a substrate 420 and a second copper foil layer 430 which are arranged in sequence.
[0038] As a preferred improvement of the present invention, refer to Figure 3 The plurality of vias 300 each include a conductive pillar 310 , and the conductive pillar 310 is solder.
[0039] As a preferred improvement of the present invention, refer to Figure 3 The conductive pillar 310 connects the first copper foil layer 410 and the second copper foil layer 430 .
[0040] As a preferred improvement of the present invention, refer to Figure 3 The high-flexibility FPC further includes a first protective film 440 and a second protective film 450, wherein the first protective film 440, the first copper foil layer 410, the substrate 420, the second copper foil layer 430 and the second protective film 450 are sequentially arranged, which can effectively increase the durability of the FPC.
[0041] As a preferred improvement of the present invention, refer to Figure 2 The highly flexible FPC further includes a first connection portion 150 and a second connection portion 160, wherein the first connection portion 150 is disposed at one end of the main body portion 130, and the second connection portion 160 is disposed at one end of the bending portion 140. The first connection portion 150 and the second connection portion 160 are both used for electrical connection with other devices or equipment, such as the first connection portion is connected to a display screen, the second connection portion is connected to a client host, or the first connection portion is connected to a backlight module, the second connection portion is connected to a control terminal, and the like.
[0042] Second, reference Figure 4The embodiment of the present utility model further provides an electronic device 1, comprising a highly flexible FPC 2 as in any embodiment of the present utility model.
[0043] 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. A high-softness FPC, characterized in that: include: FPC body, several punched dotted lines and several vias; The FPC body comprises a first side and a second side, wherein the first side and the second side are parallel; The plurality of punched imaginary lines are all perpendicular to the first side edge and the second side edge; The plurality of via holes are arranged on the FPC body along the punching imaginary lines.
2. The high-flexibility FPC according to claim 1, characterized in that: The FPC body includes a main body portion and a bending portion.
3. The high-flexibility FPC according to claim 2, characterized in that: The circuit elements of the FPC are all arranged on the main body.
4. The high-flexibility FPC according to claim 2, characterized in that: The plurality of punched dotted lines are all arranged at the bending portion.
5. The high-flexibility FPC according to claim 1, characterized in that: include: A first copper foil layer, a substrate and a second copper foil layer are arranged in sequence.
6. The high-flexibility FPC according to claim 5, characterized in that: The plurality of via holes all include: a conducting column, and the conducting column is solder.
7. The high-flexibility FPC according to claim 6, characterized in that: The conductive column connects the first copper foil layer and the second copper foil layer.
8. The high-flexibility FPC according to claim 5, characterized in that: It also includes a first protective film and a second protective film, wherein the first protective film, a first copper foil layer, a substrate, a second copper foil layer and a second protective film are arranged in sequence.
9. The high-flexibility FPC according to claim 2, characterized in that: It also includes a first connecting portion and a second connecting portion, wherein the first connecting portion is arranged at one end of the main body portion, and the second connecting portion is arranged at one end of the bending portion.
10. An electronic device, characterized in that: A highly flexible FPC comprising the above-mentioned claim 1.