Protection structure for golden finger end of FPC (Flexible Printed Circuit) of liquid crystal display screen

Abstract

The utility model discloses a protection structure of a liquid crystal display screen FPC golden finger end, which comprises an upper piece of glass and an FPC main body, the FPC main body is arranged on the upper piece of glass, a golden finger I is arranged at the bottom of one side of the FPC main body, and a golden finger II is arranged at the bottom of the other side of the FPC main body; protective paper is arranged between the front surface and the back surface of the FPC main body, and a double-faced adhesive tape I and a double-faced adhesive tape II are respectively adhered to the top and the bottom of one side of the protective paper; the protective paper can be attached to the two sides of the FPC body through double-sided pasting, the first golden finger and the second golden finger of the FPC body are wrapped, the purpose of being isolated from the outside is achieved, the phenomenon that the FPC golden fingers are damaged or deformed by external force is prevented, the protective paper is easily bent and attached to the two sides of the FPC body due to the fact that the prepared folding line is arranged on the protective paper, and therefore the service life of the FPC body is prolonged. And the protective paper does not fall off due to tension formed after the protective paper is bent, so that the effect of protecting the golden finger I and the golden finger II on the FPC main body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit boards for display screens, in particular to a protective structure for FPC gold finger ends of a liquid crystal display screen. Background Art

[0002] The liquid crystal display screen is mainly composed of an upper polarizer, an upper glass, a lower glass, a lower polarizer, a driver IC and an FPC (flexible circuit board). The connection method between the FPC and the mainboard is welding type, that is, the FPC and the mainboard are fixedly connected by welding gold fingers.

[0003] Since FPC is a welding type, there are exposed copper gold fingers on both sides of the FPC welding end. After the LCD screen is produced, it has to go through packaging and transportation before it reaches the terminal. During this period, the gold fingers of the FPC are easily scratched, worn, and deformed, affecting the welding and use of the display FPC at the terminal.

[0004] Therefore, in view of the fact that the gold fingers of the FPC of the display screen in the prior art are exposed, we specifically designed a protective structure for the gold finger end of the FPC of the liquid crystal display screen. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective structure for the gold finger end of an FPC of a liquid crystal display screen, comprising an upper glass and an FPC body, wherein the FPC body is arranged on the upper glass, a gold finger 1 is arranged at the bottom of one side of the FPC body, and a gold finger 2 is arranged at the bottom of the other side of the FPC body; a protective paper is arranged between the front and back sides of the FPC body, a double-sided tape 1 and a double-sided tape 2 are respectively pasted on the top and bottom of one side of the protective paper, and a pre-folding line is arranged in the middle of the protective paper.

[0007] As a further solution of the utility model: the protective paper is bent from the pre-folding line and covered on the bottom of the FPC body, and one side of the protective paper is attached to one side of the FPC body by double-sided tape 1, and the other side of the protective paper is attached to the other side of the FPC body by double-sided tape 2.

[0008] As a further solution of the utility model: the protective paper cover is formed with a protective cavity at the bottom of the FPC body, and the first and second gold fingers of the FPC body are both placed in the protective cavity.

[0009] As a further solution of the utility model: the width of the double-sided tape 1 and the double-sided tape 2 are the same as the width of the lower section of the FPC body, and the double-sided tape 1 and the double-sided tape 2 are respectively arranged in the middle of both sides of the inner wall of the protective paper.

[0010] As a further solution of the utility model: the overall area of ​​the protection paper is larger than the area of ​​the bottom of the FPC body, and the left and right sides of the protection paper both protrude from the left and right sides of the bottom of the FPC body.

[0011] As a further solution of the utility model: the inner wall of the protective paper is designed to be a smooth mirror structure, and two sides of the inner wall of the protective paper are respectively far away from the golden finger 1 and the golden finger 2.

[0012] As a further solution of the utility model: a binding part is provided on the top of the FPC body, and the FPC body is bound and connected to the bottom of the upper glass through the binding part.

[0013] As a further solution of the utility model: it also includes a lower glass, a polarizer 1, a polarizer 2 and a driver IC.

[0014] As a further solution of the utility model: the lower glass is installed on one side of the upper glass, the polarizer 1 is installed on one side of the lower glass, and the polarizer 2 is installed on the other side of the upper glass.

[0015] As a further solution of the utility model: the driver IC is installed on the lower glass, and the driver IC is far away from the binding part of the FPC body.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] In the present application, by designing structures such as protective paper, double-sided tape 1 and double-sided tape 2, the protective paper can be attached to both sides of the FPC body through double-sided adhesive to wrap the gold finger 1 and gold finger 2 of the FPC body, thereby achieving the purpose of isolation from the outside and preventing external forces from causing damage or deformation to the FPC gold finger. A preliminary fold line is set on the protective paper, so that the protective paper can be easily bent and attached to both sides of the FPC body, and the protective paper will not fall off due to tension formed after the protective paper is bent, thereby ensuring the stability of the protective paper on the FPC body, thereby achieving the protection effect of the gold finger 1 and gold finger 2 on the FPC body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall side view structure of the utility model;

[0019] Figure 2 It is a main structural schematic diagram of the utility model;

[0020] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0021] Figure 4This is a side view schematic diagram of the utility model in which the protective paper is pasted on the FPC body;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the protective paper of the utility model;

[0023] Figure 6 This is a schematic diagram of the main structure of the protective paper of the utility model;

[0024] Figure 7 It is a side structural schematic diagram of the protective paper of the utility model.

[0025] The reference numerals and names in the figures are as follows:

[0026] 1. Upper glass; 2. Lower glass; 3. Polarizer 1; 4. Polarizer 2; 5. FPC body; 501. Binding part; 502. Gold finger 1; 503. Gold finger 2; 6. Protective paper; 601. Double-sided tape 1; 602. Double-sided tape 2; 603. Pre-folding line; 604. Protective cavity; 7. Driver IC. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-7 A protective structure for the gold finger end of an FPC of a liquid crystal display comprises an upper glass 1 and an FPC body 5, wherein the FPC body 5 is arranged on the upper glass 1, a gold finger 1 502 is arranged at the bottom of one side of the FPC body 5, and a gold finger 2 503 is arranged at the bottom of the other side of the FPC body 5; a protective paper 6 is arranged between the front and back sides of the FPC body 5, a double-sided adhesive 1 601 and a double-sided adhesive 2 602 are respectively pasted on the top and bottom of one side of the protective paper 6, a pre-folding line 603 is arranged in the middle of the protective paper 6, a binding part 501 is arranged at the top of the FPC body 5, and the FPC body 5 is bound and connected to the bottom of the upper glass 1 through the binding part 501, and further comprises a lower glass 2, a polarizer 1 3, a polarizer 2 4 and a driving IC 7; the lower glass 2 is installed on one side of the upper glass 1, the polarizer 1 3 is installed on one side of the lower glass 2, and the polarizer 2 4 is installed on the other side of the upper glass 1; the driving IC 7 is installed on the lower glass 2, and the driving IC 7 is far away from the binding part 501 of the FPC body 5.

[0029] It should be noted that, by setting up the protective paper 6, the protective cavity 604 formed after the protective paper 6 is bent can be used to protect the gold finger 1 502 and the gold finger 2 503 of the FPC body 5, thereby preventing the gold finger 1 502 and the gold finger 2 503 of the FPC body 5 from being directly in contact with the external environment and causing damage.

[0030] See also Figure 1 and Figure 4 In this embodiment, the protective paper 6 is bent from the pre-folding line 603 and covered on the bottom of the FPC body 5, and one side of the protective paper 6 is adhered to one side of the FPC body 5 by double-sided tape 1 601, and the other side of the protective paper 6 is adhered to the other side of the FPC body 5 by double-sided tape 2 602; after the protective paper 6 is covered on the bottom of the FPC body 5, a protective cavity 604 is formed, and the gold finger 1 502 and the gold finger 2 503 of the FPC body 5 are both placed in the protective cavity 604.

[0031] Specifically, the protective paper 6 is a non-sticky anti-static protective paper to avoid affecting the gold fingers of the FPC body 5, and a pre-folding line 603 is set on the protective paper 6 to facilitate the subsequent bending of the protective paper 6 at the pre-folding line 603, thereby forming a protective cavity 604, which is beneficial for the gold fingers 1 502 and 503 of the FPC body 5 to be protected in the protective cavity 604.

[0032] See also Figure 2-5 In this embodiment, the width of double-sided tape 1 601 and double-sided tape 2 602 is the same as the width of the lower section of the FPC body 5, and double-sided tape 1 601 and double-sided tape 2 602 are respectively arranged in the middle of both sides of the inner wall of the protective paper 6.

[0033] Specifically, double-sided tape 1 601 and double-sided tape 2 602 are respectively arranged on both sides of the inner wall of the protective paper 6, so that the two sides of the protective paper 6 can be firmly adhered to the two sides of the FPC body 5, and the width of the double-sided tape 1 601 and the double-sided tape 2 602 is the same as the width of the lower section of the FPC body 5, which ensures the full adhesion of the double-sided tape 1 601 and the double-sided tape 2 602 and avoids excess glue.

[0034] See also Figure 2-3 In this embodiment, the overall area of ​​the protective paper 6 is larger than the area of ​​the bottom of the FPC body 5 , and both left and right sides of the protective paper 6 protrude from the left and right sides of the bottom of the FPC body 5 .

[0035] Specifically, the area of ​​the protective paper 6 is larger than the area of ​​the bottom of the FPC body 5 , so that the protective paper 6 can be used to protect the lower end of the FPC body 5 in a larger range, thereby better protecting the exposed gold fingers.

[0036] See also Figure 4In this embodiment, the inner wall of the protection paper 6 is designed to be a smooth mirror structure, and both sides of the inner wall of the protection paper 6 are respectively far away from the gold finger 1 502 and the gold finger 2 503 .

[0037] Specifically, the inner wall of the protection paper 6 is a smooth surface and is far away from the first gold finger 502 and the second gold finger 503 , so as to avoid scratches on the first gold finger 502 and the second gold finger 503 by the inner wall of the protection paper 6 .

[0038] When in use, first tear off the release paper on the double-sided adhesive tape 1 601 and the double-sided adhesive tape 2 602 on the FPC body 5, use the double-sided adhesive tape 1 601 to stick one side of the protection paper 6 to one side of the lower section of the FPC body 5, then use the pre-folding line 603 to bend the protection paper 6 so that the protection paper 6 bypasses the bottom of the FPC body 5, and use the double-sided adhesive tape 2 602 to stick the other side of the protection paper 6 to the other side of the lower section of the FPC body 5. At this time, the gold finger 1 502 and the gold finger 2 503 of the lower section of the FPC body 5 are placed in the protection cavity 604 formed by the protection paper 6, so as to achieve shielding and protection of the gold fingers exposed at the lower end of the FPC body 5 (such as Figure 1 and Figure 4 shown).

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A protective structure for the gold finger end of a liquid crystal display FPC, characterized in that: It comprises an upper glass (1) and an FPC body (5), wherein the FPC body (5) is arranged on the upper glass (1), a gold finger 1 (502) is arranged at the bottom of one side of the FPC body (5), and a gold finger 2 (503) is arranged at the bottom of the other side of the FPC body (5); A protective paper (6) is provided between the front and back sides of the FPC body (5), a double-sided adhesive tape 1 (601) and a double-sided adhesive tape 2 (602) are respectively adhered to the top and bottom of one side of the protective paper (6), and a pre-folding line (603) is provided in the middle of the protective paper (6).

2. A protective structure for the gold finger end of a liquid crystal display FPC according to claim 1, characterized in that: The protective paper (6) is bent from the pre-folding line (603) and covered on the bottom of the FPC body (5), and one side of the protective paper (6) is adhered to one side of the FPC body (5) by double-sided tape 1 (601), and the other side of the protective paper (6) is adhered to the other side of the FPC body (5) by double-sided tape 2 (602).

3. The protective structure of the FPC gold finger end of a liquid crystal display according to claim 1, characterized in that: The protective paper (6) is covered on the bottom of the FPC body (5) to form a protective cavity (604), and the gold finger 1 (502) and the gold finger 2 (503) of the FPC body (5) are both placed in the protective cavity (604).

4. The protective structure of the FPC gold finger end of a liquid crystal display according to claim 1, characterized in that: The widths of the double-sided adhesive tape 1 (601) and the double-sided adhesive tape 2 (602) are both the same as the width of the lower section of the FPC body (5), and the double-sided adhesive tape 1 (601) and the double-sided adhesive tape 2 (602) are respectively arranged in the middle of both sides of the inner wall of the protective paper (6).

5. The protective structure of the FPC gold finger end of a liquid crystal display according to claim 1, characterized in that: The overall area of ​​the protective paper (6) is larger than the area of ​​the bottom of the FPC body (5), and the left and right sides of the protective paper (6) both protrude from the left and right sides of the bottom of the FPC body (5).

6. The protective structure of the FPC gold finger end of a liquid crystal display according to claim 1, characterized in that: The inner wall of the protective paper (6) is designed to be a smooth mirror structure, and two sides of the inner wall of the protective paper (6) are respectively far away from the gold finger 1 (502) and the gold finger 2 (503).

7. The protective structure of the FPC gold finger end of a liquid crystal display according to claim 1, characterized in that: A binding portion (501) is provided on the top of the FPC body (5), and the FPC body (5) is bound and connected to the bottom of the upper glass (1) via the binding portion (501).

8. The protective structure of the FPC gold finger end of a liquid crystal display according to claim 1, characterized in that: It also includes a lower glass (2), a polarizer 1 (3), a polarizer 2 (4) and a driver IC (7).

9. A protective structure for the gold finger end of FPC of a liquid crystal display according to claim 8, characterized in that: The lower glass (2) is mounted on one side of the upper glass (1), the polarizer 1 (3) is mounted on one side of the lower glass (2), and the polarizer 2 (4) is mounted on the other side of the upper glass (1).

10. The protective structure of the FPC gold finger end of a liquid crystal display according to claim 8, characterized in that: The driving IC (7) is mounted on the lower glass (2), and the driving IC (7) is away from the binding portion (501) of the FPC body (5).

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