Conductive double-sided adhesive easy to attach flatly

Abstract

A conductive double-sided adhesive easy to attach flatly comprises a liquid crystal display screen and an FPC, a cover plate is arranged on the front face of the liquid crystal display screen, a backlight iron frame is arranged on a back plate of the liquid crystal display screen, and the bottom of the liquid crystal display screen is connected with the FPC through a metal PIN; fPC exposed copper is arranged on the top of the front face and the top of the back of the FPC, a conductive double-sided adhesive tape is attached to the top of the back of the FPC, and a plurality of through holes are formed in the surface of the conductive double-sided adhesive tape. According to the conductive double-sided adhesive easy to attach flatly, the plurality of through holes are formed in the conductive double-sided adhesive, and each through hole needs to be designed in other positions when being opened, so that each through hole can avoid copper leakage of an FPC when the conductive double-sided adhesive is attached to the FPC, and meanwhile, the conductive double-sided adhesive has good conductivity, so that the conductive double-sided adhesive is easy to attach flatly, and the conductive double-sided adhesive is easy to attach flatly. The conductive double-sided adhesive tape is easy to attach, and bubbles can be removed after attachment, so that the conductive double-sided adhesive tape is not easy to wrinkle and is tightly adhered.

Description

Technical Field

[0001] The utility model relates to the technical field of double-sided adhesion of display modules, in particular to a conductive double-sided adhesive that is easy to adhere flatly. Background Art

[0002] A conductive double-sided adhesive is attached to the back of the main screen FPC of the display module to attach the main screen FPC to the backlight iron frame, so that the main screen FPC has good grounding performance, which is convenient for static electricity release and anti-interference. The conductive double-sided adhesive belongs to the glue category, and bubbles are likely to appear during adhesion, resulting in uneven adhesion, wrinkles, breakage, suspended adhesion, etc. In the light case, it affects the appearance of the product, and in the heavy case, it affects the grounding effect, resulting in poor interference or static electricity release effect. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a conductive double-sided adhesive that is easy to adhere flatly.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] A conductive double-sided adhesive that is easy to adhere flatly, comprising: a liquid crystal display screen and an FPC. A cover plate is arranged on the front surface of the liquid crystal display screen, a backlight iron frame is arranged on the back plate of the liquid crystal display screen, and the bottom of the liquid crystal display screen is connected to the FPC through a metal PIN; FPC copper leakage is arranged on the top of the front and back of the FPC, and a conductive double-sided adhesive is attached to the top of the back of the FPC, and a plurality of through holes are arranged on the surface of the conductive double-sided adhesive.

[0006] In one embodiment, connectors are arranged at the center of the bottom of the back of the FPC and the bottom of the left side of the front, and components are arranged on the top of the back of the FPC.

[0007] In one embodiment, the FPC copper leakage is electrically connected to the FPC GND, and the conductive double-sided adhesive covers the FPC copper leakage on the back of the FPC.

[0008] In one embodiment, release films are arranged on both the front and back of the conductive double-sided adhesive, and tear-off handles are arranged on one side of the two release films.

[0009] In one embodiment, the shapes and sizes of the front surfaces of the liquid crystal display screen, the cover plate, and the backlight iron frame are adapted to each other.

[0010] In one embodiment, the side of the conductive double-sided adhesive attached to the FPC is a strong adhesive surface, and the side of the conductive double-sided adhesive away from the FPC is a weak adhesive surface. [[ID=#]]

[0011] In one embodiment, all the through holes formed in the conductive double-sided adhesive avoid the exposed copper of the FPC adhered to the conductive double-sided adhesive.

[0012] In one embodiment, the model of the conductive double-sided adhesive material is FY-XH005B, and the thickness of the conductive double-sided adhesive is 0.05 mm ± 0.01 mm.

[0013] In one embodiment, the surface resistance of the conductive double-sided adhesive is 0.05 / inch^2, the conduction resistance is 0.05 / inch^2, and the double-sided adhesive force is ≥ 150,00 g / 25 mm.

[0014] In one embodiment, both the length and width of the front side of the FPC are smaller than the length and width of the front side of the liquid crystal display screen.

[0015] Compared with the prior art, the present utility model has at least the following advantages:

[0016] A conductive double-sided adhesive that is easy to attach flatly according to the present utility model, by providing a number of through holes in the conductive double-sided adhesive, and each through hole needs to be designed with a good position during formation, so that each through hole can avoid the exposed copper of the FPC when attached to the FPC. At the same time, the conductive double-sided adhesive has good conductivity. Therefore, this design can make the conductive double-sided adhesive easy to attach, and can exhaust air bubbles after attachment, so that the conductive double-sided adhesive is not easy to wrinkle and adheres tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall front structure of the conductive double-sided adhesive that is easy to attach flatly according to the present utility model;

[0019] Figure 2 It is a schematic diagram of the overall FPC structure of the conductive double-sided adhesive that is easy to attach flatly according to the present utility model;

[0020] Figure 3 It is a schematic diagram of the front structure of the conductive double-sided adhesive of the conductive double-sided adhesive that is easy to attach flatly according to the present utility model;

[0021] Figure 4 It is a schematic diagram of the side stacking structure of the conductive double-sided adhesive of the conductive double-sided adhesive that is easy to attach flatly according to the present utility model.

[0022] In the figure: 1. Liquid crystal display screen;

[0023] 11. Cover plate;

[0024] 12. Backlight iron frame; 2. FPC; 21. FPC copper leakage; 22. Conductive double-sided adhesive; 221. Tearing handle; 222. Release film; 223. Through hole; 23. Connector; 24. Components. Detailed implementation manner

[0025] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model understood more thoroughly and comprehensively.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 construed as a limitation to the present application.

[0027] Unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this article are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] Such as Figures 1-4As shown in the figure, a conductive double-sided adhesive that is easy to adhere flatly includes: a liquid crystal display screen 1 and an FPC 2. A cover plate 11 is provided on the front surface of the liquid crystal display screen 1, and a backlight iron frame 12 is provided on the back plate of the liquid crystal display screen 1. The bottom of the liquid crystal display screen 1 is connected to the FPC 2 through a metal PIN; FPC vias 21 are provided at the top of the front and back of the FPC 2, and a conductive double-sided adhesive 22 is attached to the top of the back of the FPC 2. A number of through holes 223 are provided on the surface of the conductive double-sided adhesive 22. It should be noted that the FPC 2 will be bent onto the backlight iron frame 12 on the back of the liquid crystal display screen 1, and the impedance between the FPC via 21 and the BL iron frame after the FPC 2 is bent is ≤5 ohm.

[0030] As Figures 1-4 shown in an embodiment, connectors 23 are provided at the center of the bottom of the back of the FPC 2 and the bottom of the left side of the front. Components 24 are provided at the top of the back of the FPC 2. It should be noted that traces are also provided on the FPC 2.

[0031] As Figures 1-4 shown in an embodiment, the FPC via 21 is electrically connected to the FPC 2 GND, and the conductive double-sided adhesive 22 covers the FPC via 21 on the back of the FPC 2. All the through holes 223 opened on the conductive double-sided adhesive 22 avoid the FPC via 21 attached to the conductive double-sided adhesive 22. It should be noted that the diameter of the through hole 223 is between 1.5 mm and 2 mm.

[0032] As Figures 1-4 shown in an embodiment, release films 222 are provided on both the front and back of the conductive double-sided adhesive 22, and a peeling handle 221 is provided on one side of the two release films 222. It should be noted that the sides of the two release films 222 where the peeling handle 221 is provided are arranged in the opposite direction.

[0033] As Figures 1-4 shown in an embodiment, the shapes and sizes of the front surfaces of the liquid crystal display screen 1, the cover plate 11, and the backlight iron frame 12 are adapted to each other.

[0034] As Figures 1-4 shown in an embodiment, the side of the conductive double-sided adhesive 22 attached to the FPC 2 is a strong adhesive surface, and the side of the conductive double-sided adhesive 22 away from the FPC 2 is a weak adhesive surface. The model of the material of the conductive double-sided adhesive 22 is FY-XH005B, and the thickness of the conductive double-sided adhesive 22 is 0.05 mm ± 0.01 mm. The surface resistance of the conductive double-sided adhesive 22 is 0.05 / inch^2, the conduction resistance is 0.05 / inch^2, and the double-sided adhesive force is ≥1500 g / 25 mm. It should be noted that this design ensures the adhesive force and conductive performance of the conductive double-sided adhesive 22.

[0035] As Figures 1-4As shown in the figure, in one embodiment, both the length and width of the front side of the FPC2 are smaller than those of the front side of the liquid crystal display screen 1. It should be noted that with this design, when the FPC2 is bent onto the backlight iron frame 12, the FPC2 can be hidden behind the backlight iron frame 12.

[0036] The above-described embodiments merely represent several implementation manners of the present utility model. 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 pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A conductive double-sided adhesive that is easy to adhere flatly, characterized in that, Including: A liquid crystal display screen (1) and an FPC (2), A cover plate (11) is provided on the front surface of the liquid crystal display screen (1), a backlight iron frame (12) is provided on the back plate of the liquid crystal display screen (1), and the bottom of the liquid crystal display screen (1) is connected to the FPC (2) through metal PINs; FPC copper leakage (21) is provided at the top of the front and back of the FPC (2), a conductive double-sided adhesive (22) is attached to the top of the back of the FPC (2), and a number of through holes (223) are provided on the surface of the conductive double-sided adhesive (22).

2. The electrically conductive double-sided adhesive which is easy to adhere flat according to claim 1, is characterized in that Connectors (23) are provided at the center of the bottom of the back of the FPC (2) and the bottom of the left side of the front, and components (24) are provided at the top of the back of the FPC (2).

3. A conductive double-sided adhesive that is easy to adhere flat according to claim 1, characterized in that, The FPC copper leakage (21) is electrically connected to the GND of the FPC (2), and the conductive double-sided adhesive (22) covers the FPC copper leakage (21) on the back of the FPC (2).

4. The electrically conductive double-sided adhesive that is easy to adhere flat according to claim 1, wherein Release films (222) are provided on both the front and back of the conductive double-sided adhesive (22), and a peeling handle (221) is provided on one side of the two release films (222).

5. A conductive double-sided adhesive that is easy to attach and flatten, as described in claim 1, wherein The shapes and sizes of the front surfaces of the liquid crystal display screen (1), the cover plate (11), and the backlight iron frame (12) are adapted to each other.

6. The electrically conductive double-sided adhesive that is easy to adhere flat according to claim 1, wherein The side of the conductive double-sided adhesive (22) attached to the FPC (2) is a strong adhesive surface, and the side of the conductive double-sided adhesive (22) away from the FPC (2) is a weak adhesive surface.

7. A conductive double-sided adhesive that is easy to attach flat according to claim 1, characterized in that All the through holes (223) opened on the conductive double-sided adhesive (22) avoid the FPC copper leakage (21) attached to the conductive double-sided adhesive (22).

8. A conductive double-sided adhesive that is easy to attach flat according to claim 1, characterized in that, The model of the material of the conductive double-sided adhesive (22) is FY-XH005B, and the thickness of the conductive double-sided adhesive (22) is 0.05 mm ± 0.01 mm.

9. A conductive double-sided adhesive that is easy to adhere flat according to claim 1, characterized in that, The surface resistance of the conductive double-sided adhesive (22) is 0.05 / inch^2, the conduction resistance is 0.05 / inch^2, and the double-sided adhesive force ≥ 1500 g / 25 mm.

10. The electrically conductive double-sided adhesive according to claim 1, which is easy to attach and flatten, is characterized in that The length and width of the front surface of the FPC (2) are both smaller than the length and width of the front surface of the liquid crystal display screen (1).

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