FPC structure of anti-scratch cover plate and touch screen

Abstract

The utility model discloses an anti-scratch cover plate FPC structure and a touch screen, the FPC structure comprises an FPC body and an anti-scratch protective layer, one side surface of the FPC body is provided with a reinforcing sheet, and the edge of the reinforcing sheet is of a fillet structure; the scratch-resistant protective layer is arranged on the FPC body, and the scratch-resistant protective layer covers the edge of the reinforcing sheet. According to the FPC structure of the anti-scratch cover plate, the reinforcing sheet is arranged on the FPC body, and the edge of the reinforcing sheet is subjected to rounding processing, so that the risk that the edge of the reinforcing sheet scratches the touch screen cover plate is reduced, and meanwhile, the edge of the reinforcing sheet is covered with the anti-scratch protection layer, so that the anti-scratch cover plate is prevented from being scratched. Therefore, ink or circuits on the cover plate can be further prevented from being scratched by the reinforcing sheet, and the production yield of products is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screen production, in particular to an FPC structure for preventing a cover plate from being scratched and a touch screen. Background Technique

[0002] Touch screens are widely used in various electronic devices, and the circuit board commonly used in touch screens is an FPC (flexible printed circuit board). At present, for conventional flexible printed circuit boards, in order to increase strength, a reinforcing sheet is often added to the back of the component area for reinforcement. However, the edges of conventional reinforcing sheets are right-angled or angled, as shown at point A in Figure 1 In this way, the FPC reinforcing sheet is likely to come into contact with the cover plate of the touch screen and scratch the ink layer on the cover plate. Especially for touch screens with an OGS (One Glass Solution) structure, the touch sensing traces of the OGS structure are directly set on the cover plate. This results in the FPC reinforcing sheet not only scratching the ink layer of the cover plate but also scratching the traces on the cover plate, affecting the touch sensing function of the touch screen and reducing the product yield.

[0003] In view of the above, an FPC structure for preventing a cover plate from being scratched and a touch screen are proposed to improve the product yield. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an FPC structure for preventing a cover plate from being scratched and a touch screen, so as to improve the product yield.

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

[0006] An FPC structure for preventing a cover plate from being scratched, comprising: an FPC body and an anti-scratch protective layer. A reinforcing sheet is arranged on one side surface of the FPC body, and the edge of the reinforcing sheet is a rounded corner structure; the anti-scratch protective layer is arranged on the FPC body, and the anti-scratch protective layer covers the edge of the reinforcing sheet.

[0007] In one embodiment, the reinforcing sheet is a reinforcing steel sheet.

[0008] In one embodiment, the thickness of the reinforcing steel sheet is 0.1 mm - 0.4 mm.

[0009] In one embodiment, the anti-scratch protective layer is a protective glue layer, and the protective glue layer covers the four peripheral edges of the reinforcing sheet.

[0010] In one embodiment, the protective glue layer is silicone glue.

[0011] In one embodiment, the thickness of the protective glue layer is 0.15 mm - 0.45 mm.

[0012] In one embodiment, the scratch-resistant protective layer is a scratch-resistant protective film, which is attached to the reinforcing patch, and the size of the scratch-resistant protective film is larger than that of the reinforcing patch, so that the scratch-resistant protective film covers the edge of the reinforcing patch.

[0013] In one embodiment, the scratch-resistant protective film is a PET film.

[0014] In one embodiment, the thickness of the scratch-resistant protective film is 50 μm - 150 μm.

[0015] A touch screen includes the FPC structure of the above-mentioned scratch-resistant cover plate.

[0016] [[ID=1⑤]]Compared with the prior art, the present utility model has at least the following advantages:

[0017] The FPC structure of the scratch-resistant cover plate of the present utility model reduces the risk of scratching the touch screen cover plate by setting a reinforcing patch on the FPC body and performing a chamfering treatment on the edge of the reinforcing patch. At the same time, a scratch-resistant protective layer is covered on the edge of the reinforcing patch, so as to further avoid the reinforcing patch from scratching the ink or circuit on the cover plate, thereby improving the production yield of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below.

[0019] Figure 1 is a schematic structural diagram of a conventional FPC structure with a reinforcing patch;

[0020] Figure 2 is a back view structural diagram of the FPC structure of the scratch-resistant cover plate in an embodiment of the present utility model;

[0021] Figure 3 is a side view structural diagram of the FPC structure of the scratch-resistant cover plate in an embodiment of the present utility model;

[0022] Figure 4 is Figure 3 a partial enlarged structural diagram of part B of the FPC structure of the scratch-resistant cover plate in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings.

[0024] A touch screen includes an FPC structure 10 and a cover plate. Conventionally, the FPC structure 10 is usually bonded to the touch screen. For a touch screen with an OGS structure, the touch sensing pattern and traces are formed on the cover plate, so the FPC is usually bonded to the cover plate. However, regardless of the structure of the touch screen, during the production turnover and processing and assembly processes, due to the presence of right angles or sharp corners at other angles at the edges of the reinforcement sheet 300 on the FPC, the ink or traces on the cover plate may be scratched, resulting in a low yield of the product. Therefore, the FPC structure 10 for preventing the cover plate from being scratched according to the present utility model is proposed to solve the above problems. The specific structure of the FPC structure 10 for preventing the cover plate from being scratched according to the present utility model is as follows:

[0025] An FPC structure 10 for preventing the cover plate from being scratched includes: an FPC body 100 and an anti-scratch protective layer 200. A reinforcement sheet 300 is provided on one side surface of the FPC body 100, and the edge of the reinforcement sheet 300 is a rounded corner structure 310; the anti-scratch protective layer 200 is provided on the FPC body 100, and the anti-scratch protective layer 200 covers the edge of the reinforcement sheet 300. In this way, by providing the reinforcement sheet 300 on the FPC body 100 and simultaneously performing a chamfering process on the edge of the reinforcement sheet 300, the risk of the edge of the reinforcement sheet 300 scratching the touch screen cover plate is reduced. At the same time, an anti-scratch protective layer 200 is covered on the edge of the reinforcement sheet 300, so as to further avoid the reinforcement sheet 300 from scratching the ink or circuit on the cover plate, thereby improving the production yield of the product.

[0026] Preferably, the reinforcement sheet 300 is a reinforcement steel sheet. The reinforcement steel sheet plays a supporting role for the components on the FPC body 100. Preferably, the thickness of the reinforcement steel sheet is 0.1 mm - 0.4 mm.

[0027] In an embodiment, the anti-scratch protective layer 200 is a protective glue layer, and the protective glue layer covers the four peripheral edges of the reinforcement sheet 300. The protective glue is usually made of a relatively soft material. By covering and wrapping the edge of the reinforcement sheet 300 with the protective glue layer, the edge of the reinforcement sheet 300 can be further prevented from scratching the ink or traces on the cover plate. Preferably, the protective glue layer is silicone glue.

[0028] Preferably, the thickness of the protective glue layer is 0.15 mm - 0.45 mm. The thickness of the protective glue is preferably higher than the thickness of the reinforcement steel sheet. In this way, the edge of the reinforcement steel sheet can be better covered, thereby ensuring the anti-scratch effect.

[0029] In another embodiment, the scratch-resistant protective layer 200 is a scratch-resistant protective film, which is attached to the reinforcement sheet 300, and the size of the scratch-resistant protective film is larger than that of the reinforcement sheet 300, so that the scratch-resistant protective film covers the edge of the reinforcement sheet 300. That is to say, a layer of scratch-resistant protective film can also be covered on the reinforcement sheet 300, and the edge of the reinforcement sheet 300 is covered and wrapped by the scratch-resistant protective film, so as to further avoid the edge of the reinforcement sheet 300 from scratching the ink or traces on the cover plate. Preferably, the scratch-resistant protective film is a PET (polyester) film, and the PET film has high temperature resistance and excellent mechanical properties, which can further improve the scratch resistance effect; preferably, the thickness of the scratch-resistant protective film is 50μm - 150μm.

[0030] The above-described embodiments merely represent several embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An FPC structure of a scratch-resistant cover plate, characterized in that, Comprising: An FPC body, on one side of which a reinforcing sheet is provided, and the edge of the reinforcing sheet is a rounded corner structure; And An anti-scratch protection layer, which is provided on the FPC body and covers the edge of the reinforcing sheet.

2. The FPC structure of the scratch-resistant cover plate according to claim 1, characterized in that, The reinforcing sheet is a reinforcing steel sheet.

3. The FPC structure of the scratch-resistant cover plate according to claim 2, wherein The thickness of the reinforcing steel sheet is 0.1 mm - 0.4 mm.

4. The FPC structure of the scratch-resistant cover plate according to claim 1, characterized in that, The anti-scratch protection layer is a protective adhesive layer, and the protective adhesive layer covers the four peripheral edges of the reinforcing sheet.

5. The FPC structure of the scratch-resistant cover plate according to claim 4, characterized in that The protective adhesive layer is silicone rubber.

6. The FPC structure of the scratch-resistant cover plate according to claim 5, characterized in that, The thickness of the protective adhesive layer is 0.15 mm - 0.45 mm.

7. The FPC structure of the scratch-resistant cover plate according to claim 1, characterized in that, The anti-scratch protection layer is an anti-scratch protective film, the anti-scratch protective film is attached to the reinforcing sheet, and the size of the anti-scratch protective film is larger than the size of the reinforcing sheet so that the anti-scratch protective film covers the edge of the reinforcing sheet.

8. The FPC structure of the scratch-resistant cover plate according to claim 7, wherein, The anti-scratch protective film is a PET film.

9. The FPC structure of the scratch-resistant cover plate according to claim 8, wherein, The thickness of the anti-scratch protective film is 50 μm - 150 μm.

10. A touch screen, characterized in that, An FPC structure including the anti-scratch cover plate according to any one of claims 1 - 9.

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