Fool-proof structure of FPC (Flexible Printed Circuit) board

Abstract

The utility model relates to an FPC board fool-proof structure. The FPC board fool-proof structure comprises a first insulating layer, a copper foil layer, a conductive adhesive layer and a second insulating layer, wherein the copper foil layer is arranged on the first insulating layer; the conductive adhesive layer is arranged on the copper foil layer; the second insulating layer comprises an insulating film and an insulating film extension part, the insulating film is connected with the insulating film extension part, and the insulating film and the insulating film extension part are respectively arranged on the conductive adhesive layer. According to the scheme, the area of the insulating film can be increased, and it is guaranteed that the electronic component is completely covered in the attaching process.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to an FPC board fool-proof structure. Background Art

[0002] Currently, during the production process of display screens, protective paper needs to be attached to protect the electronic components of the FPC board from electromagnetic interference. During the attachment process, the insulating film needs to completely cover the electronic components.

[0003] However, in the related art, the overall shape of the protective paper is square, while the insulating film is rectangular and has a small area. The location of the insulating film is biased to one side and not centered, such as Figure 1 As shown. When the material is incoming, when the position of the insulating film is Figure 1 As shown, due to the possibility of negligence in manual attachment, it is easy to follow Figure 1 As a result, the insulating film does not completely cover the electronic component 700, which causes a short circuit between the electronic component 700 and the conductive glue on the protective paper. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an FPC board fool-proof structure that can increase the area of ​​the insulating film to ensure that electronic components are fully covered during the attachment process.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The first aspect of the present application provides an FPC board anti-fouling structure, comprising: a first insulating layer; a copper foil layer, the copper foil layer being arranged on the first insulating layer; a conductive adhesive layer, the conductive adhesive layer being arranged on the copper foil layer; and a second insulating layer, the second insulating layer comprising an insulating film and an insulating film extension portion, the insulating film being connected to the insulating film extension portion, and the insulating film and the insulating film extension portion being respectively arranged on the conductive adhesive layer.

[0007] A first side and a second side are provided on the first insulating layer, and the first side is connected to the second side.

[0008] A third side and a fourth side are provided on the first insulating layer, and the third side is connected to the fourth side.

[0009] A first edge seal and a second edge seal are provided on the insulating film extension portion, the first edge seal is connected to the second edge seal, a first distance is provided between the first edge seal and the first side edge, a second distance is provided between the second edge seal and the second side edge, and the first distance is equal to the second distance.

[0010] A third edge seal is also provided on the extended portion of the insulating film, a fourth edge seal and a fifth edge seal are provided on the insulating film, the third edge seal is connected to the fifth edge seal, the fourth edge seal is connected to the second edge seal, and a third distance is provided between the third edge seal and the third side edge.

[0011] A sixth edge seal is further provided on the insulating film, the sixth edge seal is connected to the fourth edge seal and the fifth edge seal respectively, a fourth distance is provided between the sixth edge seal and the fourth side edge, and the third distance is equal to the fourth distance.

[0012] It also includes a marking portion connected to the first insulating layer.

[0013] The cross-sectional structure of the first insulating layer is a rectangular structure.

[0014] The cross-sectional structure of the copper foil layer is a rectangular structure.

[0015] It also includes an iron frame connected to the conductive adhesive layer.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] By providing the insulating film extension portion, the area of ​​the original insulating film can be expanded, thereby ensuring that no matter what the direction of the protective paper is when the material is received, the electronic components can be completely covered when attached. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the FPC board anti-fouling structure of the prior art;

[0020] Figure 2 This is a schematic structural diagram of the FPC board foolproof structure in one embodiment of the present utility model;

[0021] Figure 3 This is a structural diagram of another embodiment of the FPC board fool-proofing structure in one embodiment of the present utility model;

[0022] Figure 4 This is a structural diagram of another implementation of the FPC board fool-proofing structure in one embodiment of the present utility model. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0024] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0027] See also Figure 2 and Figure 3 A foolproof FPC board structure includes: a first insulating layer 100, a copper foil layer 200, a conductive adhesive layer 300, and a second insulating layer 400. The copper foil layer 200 is disposed on the first insulating layer 100; the conductive adhesive layer 300 is disposed on the copper foil layer 200; and the second insulating layer 400 includes an insulating film 410 and an insulating film extension 420. The insulating film 410 is connected to the insulating film extension 420, and the insulating film 410 and the insulating film extension 420 are respectively disposed on the conductive adhesive layer 300. Specifically, the cross-sectional structure of the first insulating layer 100 is a rectangular structure, and the cross-sectional structure of the copper foil layer 200 is also a rectangular structure.

[0028] It should be noted that the provision of the insulating film extension 420 can expand the area of ​​the original insulating film 410, thereby ensuring that the electronic components 700 can be completely covered when attached, regardless of the orientation of the protective paper when the material is received. The insulating film 410 and the insulating film extension 420 together form a complete second insulating layer.

[0029] See also Figure 2 In one embodiment, the first insulating layer 100 is provided with a first side 110 and a second side 120, and the first side 110 is connected to the second side 120. Specifically, the first insulating layer 100 is provided with a third side 130 and a fourth side 140, and the third side 130 is connected to the fourth side 140. More specifically, the insulating film extension portion 420 is provided with a first sealing edge 421 and a second sealing edge 422, and the first sealing edge 421 is connected to the second sealing edge 422. A first distance is set between the first sealing edge 421 and the first side 110, and a second distance is set between the second sealing edge 422 and the second side 120, and the first distance and the second distance are equal. More specifically, a third edge seal 423 is further provided on the insulating film extension 420, and a fourth edge seal 411 and a fifth edge seal 412 are provided on the insulating film 410. The third edge seal 423 is connected to the fifth edge seal 412, and the fourth edge seal 411 is connected to the second edge seal 422. A third distance is set between the third edge seal 423 and the third side 130. More specifically, a sixth edge seal 413 is further provided on the insulating film 410. The sixth edge seal 413 is connected to the fourth edge seal 411 and the fifth edge seal 412, respectively. A fourth distance is set between the sixth edge seal 413 and the fourth side 140, and the third distance is equal to the fourth distance.

[0030] It should be noted that the first distance, the second distance, the third distance and the fourth distance are all equal, the entire second insulating layer 400 is a square structure, and the second edge 422 and the fourth edge 411 are in a straight line, and the third edge 423 and the fifth edge 412 are in a straight line.

[0031] See also Figure 4 In one embodiment, the label 500 is further included, and the label 500 is connected to the first insulating layer 100. It should be noted that the label 500 plays a role in positioning and facilitates attachment.

[0032] See also Figure 4 In one embodiment, an iron frame 600 is further included, and the iron frame 600 is connected to the conductive adhesive layer 300. It should be noted that the purpose of attaching the protective paper is to prevent electromagnetic interference, so the conductive adhesive layer structure of the protective paper will be conductive with the iron frame 600.

[0033] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for this application. In addition, it is understood that the steps in the method of the embodiment of the present application can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0034] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. An FPC board foolproof structure, characterized in that: include: a first insulating layer; a copper foil layer, the copper foil layer being disposed on the first insulating layer; A conductive adhesive layer, the conductive adhesive layer being disposed on the copper foil layer; and The second insulating layer includes an insulating film and an insulating film extension portion, the insulating film is connected to the insulating film extension portion, and the insulating film and the insulating film extension portion are respectively arranged on the conductive adhesive layer.

2. The FPC board foolproof structure according to claim 1, characterized in that: A first side and a second side are provided on the first insulating layer, and the first side is connected to the second side.

3. The FPC board foolproof structure according to claim 2, characterized in that: A third side and a fourth side are provided on the first insulating layer, and the third side is connected to the fourth side.

4. The FPC board foolproof structure according to claim 3, characterized in that: A first edge seal and a second edge seal are provided on the insulating film extension portion, the first edge seal is connected to the second edge seal, a first distance is provided between the first edge seal and the first side edge, a second distance is provided between the second edge seal and the second side edge, and the first distance is equal to the second distance.

5. The FPC board foolproof structure according to claim 4, characterized in that: A third edge seal is also provided on the extended portion of the insulating film, a fourth edge seal and a fifth edge seal are provided on the insulating film, the third edge seal is connected to the fifth edge seal, the fourth edge seal is connected to the second edge seal, and a third distance is provided between the third edge seal and the third side edge.

6. The FPC board foolproof structure according to claim 5, characterized in that: A sixth edge seal is further provided on the insulating film, the sixth edge seal is connected to the fourth edge seal and the fifth edge seal respectively, a fourth distance is provided between the sixth edge seal and the fourth side edge, and the third distance is equal to the fourth distance.

7. The FPC board foolproof structure according to claim 1, characterized in that: It also includes a marking portion connected to the first insulating layer.

8. The FPC board foolproof structure according to claim 1, characterized in that: The cross-sectional structure of the first insulating layer is a rectangular structure.

9. The FPC board foolproof structure according to claim 1, characterized in that: The cross-sectional structure of the copper foil layer is a rectangular structure.

10. The FPC board foolproof structure according to claim 1, characterized in that: It also includes an iron frame connected to the conductive adhesive layer.

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