Anti-static protective film of FPC (Flexible Printed Circuit) golden finger

Abstract

The utility model discloses an anti-static protective film of an FPC golden finger, which comprises a display module and an FPC bound on the display module, one end of the FPC is bound on the display module, the other end of the FPC is used for being connected with a client mainboard, one end, far away from the display module, of the FPC is provided with a golden finger used for being connected with the client mainboard, and the golden finger is used for being connected with the client mainboard. The FPC is provided with an anti-static protection film used for protecting the golden finger from static invasion. The anti-static protective film has the effect of preventing static electricity from entering from the golden finger position to break down the display module.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC, in particular to an antistatic protective film for FPC gold fingers. Background Art

[0002] Liquid crystal display devices are widely used in various information, communication and consumer electronic products. Liquid crystal display modules are mainly composed of liquid crystal display screens and backlight modules. The display screen is usually bound with an FPC, which is connected to the customer's motherboard to ensure the normal operation of the display module.

[0003] The gold fingers of the FPC of the display module in the prior art are the locations for plugging into the customer's mainboard, and the gold fingers of the FPC are exposed to the outside world. During the transportation or assembly of the display module, static electricity may be introduced into the FPC from the FPC gold fingers, thereby piercing the display screen, damaging the display module, and causing adverse effects. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an antistatic protective film for FPC gold fingers.

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

[0006] An antistatic protective film for FPC gold fingers is applied to a display module and an FPC bound to the display module. One end of the FPC is bound to the display module, and the other end of the FPC is used to connect to a customer's mainboard. One end of the FPC away from the display module is provided with a gold finger for connecting to the customer's mainboard. The FPC is provided with an antistatic protective film for protecting the gold finger from static electricity.

[0007] In one embodiment, the antistatic protective film includes an integrally formed adhesive portion and a protective portion, and the adhesive portion and the protective portion are both made of antistatic PET.

[0008] In one embodiment, the adhesive portion is located at a position of the FPC close to the gold finger, the adhesive portion does not contact the gold finger, and the width of the adhesive portion is adapted to the width of the FPC.

[0009] In one embodiment, the bonding portion is provided with a double-sided adhesive for bonding with the FPC.

[0010] In one embodiment, the thickness of the double-sided adhesive is 0.025 mm.

[0011] In one embodiment, tearing fingers are provided on two opposite sides of the adhesive portion, and the tearing fingers are formed by extending outward from the side edges of the adhesive portion.

[0012] In one embodiment, the thickness of the protection portion and the adhesive portion are both greater than 0.1 mm, and the protection portion covers the gold finger area of ​​the FPC.

[0013] In one embodiment, a plurality of outer sides of the protection portion extend out of the outer side of the FPC by 0.5 mm, so that the outer side of the protection portion wraps around the gold finger area.

[0014] In one embodiment, a handle is extended from one end of the protection part away from the adhesive part in a direction away from the gold finger, and the handle extends out of the protection part by 3 mm. The handle is used to facilitate taking the antistatic protective film.

[0015] In one embodiment, a groove for alignment during pasting is formed between the tear handle, the outer side edge of the adhesive portion and the protective portion.

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

[0017] The utility model discloses an antistatic protective film for an FPC gold finger, which covers the FPC and the gold finger position by setting the antistatic protective film, wherein the bonding portion of the antistatic protective film is used to bond the antistatic protective film to the FPC, and the protection portion is used to wrap and protect the gold finger area, and the antistatic protective film can prevent static electricity from entering from the gold finger position and breaking through the display module, and the antistatic protective film can prevent the gold finger from being oxidized. 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 for use in the embodiments are briefly introduced below.

[0019] Figure 1 A schematic diagram of the structure of an anti-static protective film for an FPC gold finger provided by the utility model;

[0020] Figure 2 A schematic diagram of the structure of an anti-static protective film in an anti-static protective film of an FPC gold finger provided by the utility model;

[0021] Figure 3 The utility model provides a schematic diagram of the side structure of an anti-static protective film for an FPC gold finger.

[0022] Description of the drawings: 10, display module; 20, FPC; 21, gold finger; 30, reinforcement plate; 40, anti-static protective film; 41, bonding part; 411, tear handle; 42, protection part; 421, handle; 50, double-sided adhesive; 60, groove. DETAILED DESCRIPTION

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

[0024] An anti-static protective film for FPC gold fingers, referring to Figure 1 , applied to the display module 10 and the FPC 20 bound to the display module 10, one end of the FPC 20 is bound to the display module 10, and the other end of the FPC 20 is used to connect to the customer's mainboard. The end of the FPC 20 away from the display module 10 is provided with a gold finger 21 for connecting to the customer's mainboard, the gold finger 21 is located on one side of the FPC 20, and the gold finger 21 is located near the end of the FPC 20. A reinforcing plate 30 is provided on the side of the FPC 20 away from the gold finger 21, and the reinforcing plate 30 is used to provide hardness to the gold finger 21, so that the position of the gold finger 21 is not easy to bend and damage.

[0025] Reference Figure 1 and Figure 2 The FPC 20 is provided with an antistatic protective film 40 for protecting the gold finger 21 from static electricity. The antistatic protective film 40 includes an integrally formed adhesive portion 41 and a protective portion 42. The adhesive portion 41 is located at a position of the FPC 20 close to the gold finger 21, the adhesive portion 41 is bonded to one side of the gold finger 21, and the adhesive portion 41 does not contact the gold finger 21.

[0026] Reference Figure 1 and Figure 2 A double-sided adhesive 50 for bonding with the FPC 20 is provided at the bonding portion 41 , and the antistatic protective film 40 is fixed to the FPC 20 through the double-sided adhesive 50 .

[0027] Further, refer to Figure 1 and Figure 2 The thickness of the double-sided adhesive 50 is 0.025 mm. The thickness of the double-sided adhesive 50 determines the adhesive force of the adhesive portion 41 and whether it is convenient to tear off. The double-sided adhesive 50 is selected to have a thickness of 0.025 mm, which has sufficient adhesive force and is easy to tear off manually.

[0028] Reference Figure 1 and Figure 2 The width of the adhesive portion 41 matches the width of the FPC 20, and the two opposite sides of the adhesive portion 41 do not exceed the side edges of the FPC 20. Tear fingers 411 are provided on the two opposite sides of the adhesive portion 41, and the tear fingers 411 are formed by extending outward from the side edges of the adhesive portion 41, and the tear fingers 411 are integrally formed with the adhesive portion 41. The tear fingers 411 facilitate the adhesive portion 41 to be attached to the FPC 20, and are convenient to tear off when it is necessary to tear it off.

[0029] Reference Figure 1 and Figure 2The materials of the protection part 42 and the bonding part 41 are both anti-static PET. The protection part 42 covers the gold finger 21 area of ​​the FPC 20, and the protection part 42 is used to provide anti-static protection for the gold finger 21 area.

[0030] Further, refer to Figure 1 and Figure 2 The thickness of the protection part 42 and the bonding part 41 are both above 0.1 mm, and the protection part 42 made of antistatic PET material is stiff, which is conducive to the protection part 42 being fully unfolded to wrap the gold finger 21 .

[0031] Reference Figure 1 and Figure 2 Multiple outer sides of the protection part 42 extend out of the outer side of the FPC 20 by 0.5 mm, so that the outer side of the protection part 42 is larger than the area of ​​the gold finger 21, so as to completely wrap the area of ​​the gold finger 21.

[0032] Reference Figure 1-3 A handle 421 is extended from one end of the protection part 42 away from the adhesive part 41 in a direction away from the gold finger 21. The handle 421 and the protection part 42 are integrally formed. The handle 421 extends out of the protection part 423mm. The handle 421 is used to facilitate the taking of the anti-static protective film 40, and when it needs to be torn off, the anti-static protective film 40 can be conveniently torn off by pinching the handle 421.

[0033] Further, refer to Figure 1 and Figure 2 A groove 60 for alignment during pasting is formed between the tear hand 411, the outer edge of the adhesive portion 41 and the protective portion 42. The tear hand 411 and the protective portion 42 both extend out of the FPC 20, and the width of the adhesive portion 41 matches the width of the FPC 20, thereby forming the groove 60, which is convenient for alignment when the anti-static protective film 40 is pasted, so that the position of the anti-static protective film 40 can be accurately pasted.

[0034] Reference Figure 1 and Figure 2 The antistatic protective film 40 is provided to cover the FPC 20 and the gold finger 21. The adhesive portion 41 of the antistatic protective film 40 is used to adhere the antistatic protective film 40 to the FPC 20, and the protective portion 42 is used to protect the gold finger 21 area. The antistatic protective film 40 can prevent static electricity from entering from the gold finger 21 and breaking through the display module 10, and the antistatic protective film 40 can prevent the gold finger 21 from oxidizing.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An antistatic protective film for FPC gold fingers, characterized in that: An FPC (20) applied to a display module (10) and bound to the display module (10), one end of the FPC (20) being bound to the display module (10), the other end of the FPC (20) being used for connecting to a customer's mainboard, one end of the FPC (20) away from the display module (10) being provided with a gold finger (21) for connecting to a customer's mainboard, and an antistatic protective film (40) for protecting the gold finger (21) from static electricity.

2. The antistatic protective film for FPC gold fingers according to claim 1, characterized in that: The antistatic protective film (40) comprises an integrally formed bonding portion (41) and a protective portion (42), and the bonding portion (41) and the protective portion (42) are both made of antistatic PET.

3. The antistatic protective film for FPC gold fingers according to claim 2, characterized in that: The bonding portion (41) is located at a position of the FPC (20) close to the gold finger (21), the bonding portion (41) does not contact the gold finger (21), and the width of the bonding portion (41) is adapted to the width of the FPC (20).

4. The antistatic protective film for FPC gold fingers according to claim 3, characterized in that: The bonding portion (41) is provided with a double-sided adhesive (50) for bonding with the FPC (20).

5. The antistatic protective film for FPC gold fingers according to claim 4, characterized in that: The thickness of the double-sided adhesive (50) is 0.025 mm.

6. The antistatic protective film for FPC gold fingers according to claim 5, characterized in that: Tear fingers (411) are provided on opposite sides of the bonding portion (41), and the tear fingers (411) are formed by extending outwards from the side edges of the bonding portion (41).

7. The antistatic protective film for FPC gold fingers according to claim 6, characterized in that: The thickness of the protection part (42) and the bonding part (41) are both greater than 0.1 mm, and the protection part (42) covers the gold finger (21) area of ​​the FPC (20).

8. The antistatic protective film for FPC gold fingers according to claim 7, characterized in that: Multiple outer edges of the protection portion (42) extend out of the outer edge of the FPC (20) by 0.5 mm, so that the outer side of the protection portion (42) wraps around the gold finger (21) area.

9. The antistatic protective film for FPC gold fingers according to claim 8, characterized in that: A handle (421) is extended from one end of the protection part (42) away from the bonding part (41) in a direction away from the gold finger (21), and the handle (421) extends 3 mm out of the protection part (42). The handle (421) is used to facilitate taking the antistatic protection film (40).

10. The antistatic protective film for FPC gold fingers according to claim 9, characterized in that: A groove (60) for alignment during pasting is formed between the tearing handle (411), the outer side edge of the bonding portion (41) and the protection portion (42).

Images