Copper foil easy to attach flatly and display module

Abstract

The utility model discloses a copper foil easy to attach flatly and a display module. The copper foil comprises a liquid crystal display screen and a display FPC (Flexible Printed Circuit), a cover plate is arranged on the front face of the liquid crystal display screen, an IC is arranged in the center of the bottom of the front face of the liquid crystal display screen, and the display FPC is connected with a metal PIN in the center of the bottom of the liquid crystal display screen through binding positioning. A copper foil is arranged on the top of the front face of the display FPC, front face insulating gummed paper is arranged on the surface of the copper foil, and a plurality of through holes are formed in the copper foil. According to the copper foil easy to attach flatly and the display module, the copper foil and the front insulated gummed paper are integrally designed, and the plurality of through holes are formed in the copper foil, so that the copper foil has the advantages of being thin in thickness, easy to attach, capable of insulating and protecting components, good in conductivity and good in electromagnetic shielding effect, bubbles are prevented from occurring when the copper foil is attached, and the service life of the copper foil is prolonged. The conditions of uneven attachment, wrinkling, damage, suspended attachment and the like are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of display module FPC, in particular to a copper foil that is easy to attach and flat, and a display module. Background Art

[0002] The display module main screen FPC is composed of electronic components. In order to protect the components, insulating protective paper needs to be applied to the components to prevent short circuits and damage that may cause malfunctions. On the other hand, in order to achieve a good electromagnetic shielding effect for the entire machine, customers will require copper foil to be attached above the display module driver IC. This requires at least two steps in the module position to attach component protective paper and shielding copper foil. The insulating protective paper and copper foil are attached with glue, and bubbles are easily generated during attachment, resulting in uneven attachment, wrinkles, breakage, and suspended attachment. In mild cases, this affects the appearance of the product, and in severe cases, it affects the grounding effect, resulting in component short circuits, interference, or poor release of electromagnetic shielding effects. Summary of the Invention

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a copper foil and a display module that are easy to attach and smooth.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A copper foil and a display module that are easy to attach and flatten, comprising: a liquid crystal display screen and a display flexible printed circuit board (FPC); a cover plate is provided on the front of the liquid crystal display screen, an integrated circuit (IC) is provided at the center of the bottom of the front of the liquid crystal display screen, and the display flexible printed circuit board (FPC) is connected to a metal pin at the center of the bottom of the liquid crystal display screen via a binding position; a copper foil is provided on the top of the front of the display FPC, a front insulating tape is provided on the surface of the copper foil, and a plurality of through holes are opened on the copper foil.

[0006] In one embodiment, components are provided on the left and right sides of the top of the front of the display FPC, and component insulating tape is provided on the surface of the components.

[0007] In one embodiment, an IC protection film is attached to the front surface of the IC, and the length and width of the front surface of the IC protection film are both larger than the length and width of the front surface of the IC.

[0008] In one embodiment, a connector is provided at the center of the bottom of the front side and at the center of the bottom of the left side of the front side of the display FPC.

[0009] In one embodiment, an FPC leaking copper is provided on the left side of the bottom of the front side of the display FPC, the copper foil covers the FPC leaking copper, and the through hole opened on the copper foil avoids the FPC leaking copper.

[0010] In one embodiment, the copper foil and the front insulating tape are integrally formed, and the total thickness of the copper foil and the front insulating tape together is 87um-97um.

[0011] In one embodiment, the side of the copper foil close to the display FPC is an adhesive surface, and the resistance between any two points on the copper foil is less than 1 ohm.

[0012] In one embodiment, the diameter of the front side of the through hole is 1.5 mm to 2 mm.

[0013] In one embodiment, the copper foil and the front insulating tape are provided with a cut corner on the left side of the front side, and the cut corner is provided with an anti-fouling treatment.

[0014] In one embodiment, a layer of PET film is laminated to the front surface of the copper foil and the front insulating tape.

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

[0016] The utility model discloses a copper foil and a display module that are easy to attach flatly. The copper foil and the front insulating tape are integrated into one design. A plurality of through holes are provided on the copper foil. The through holes need to avoid each FPC copper leak on the display FPC. The thickness of the integrated copper foil is 87um-97um. The single-sided adhesive makes it thin and easy to attach. It has the functions of insulating and protecting components, good conductivity and electromagnetic shielding effect, thereby preventing the occurrence of bubbles when the copper foil is attached, resulting in uneven attachment, wrinkles, damage, and suspended attachment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the front of the utility model, which is easy to attach flat copper foil and the display module;

[0019] Figure 2 This is a schematic diagram of the overall structure of the front of the display FPC of the display module, which is easy to attach to the flat copper foil of the utility model.

[0020] In the figure: 1. LCD screen; 11. Cover plate; 12. IC; 13. IC protective film; 2. Display FPC; 21. Copper foil; 22. Components; 23. FPC copper leakage; 24. Connector; 25. Front insulation tape; 26. Through hole. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0022] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0023] Unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1-2As shown, a copper foil and display module that is easy to attach and flatten includes: a liquid crystal display screen 1 and a display FPC 2; a cover plate 11 is provided on the front of the liquid crystal display screen 1, an IC 12 is provided at the center of the bottom of the front of the liquid crystal display screen 1, and the display FPC 2 is connected to the metal pin at the center of the bottom of the liquid crystal display screen 1 via a binding position; a copper foil 21 is provided on the top of the front of the display FPC 2, and a front insulating tape 25 is provided on the surface of the copper foil 21, and a plurality of through holes 26 are formed in the copper foil 21. It should be noted that the through holes 26 need to be designed according to the position of the FPC copper leak 23 on the display FPC 2, and the shape and size of the copper foil 21 and the front insulating tape 25 are the same as the shape and size of the top of the front of the display FPC 2.

[0026] like Figure 1-2 As shown in FIG. 1 , an embodiment shows components 22 disposed on the left and right sides of the top front of FPC 2, with component insulation tape applied to the surface of component 22. It should be noted that the component insulation tape is 48-52 μm thick and made of Maxim MX-466-043211, providing insulation and protection for component 22.

[0027] like Figure 1-2 As shown in the figure, in one embodiment, an IC protective film 13 is attached to the front of IC 12. The length and width of the front of IC protective film 13 are both greater than the length and width of the front of IC 12. It should be noted that IC insulating tape is integrally formed on the top of copper foil 21, and is not attached to IC 12. The thickness of IC protective film 13 is 11-13 μm, and the raw material can be Fengyu FY-12800.

[0028] like Figure 1-2 As shown in one embodiment, the center of the bottom of the front side and the center of the bottom of the left side of the front side of the FPC 2 are both provided with connectors 24. It should be noted that the connectors 24 are ZIF connectors.

[0029] like Figure 1-2 As shown in FIG. 1 , an embodiment is shown in which an FPC copper leak 23 is provided on the left side of the bottom front side of the FPC 2, the copper foil 21 covers the FPC copper leak 23, and the through hole 26 opened in the copper foil 21 avoids the FPC copper leak 23. It should be noted that this design can ensure that the copper foil 21 and the FPC copper leak 23 are well grounded.

[0030] like Figure 1-2 As shown, in one embodiment, the copper foil 21 and the front insulating tape 25 are integrally formed, and the total thickness of the copper foil 21 and the front insulating tape 25 is 87um-97um. It should be noted that the thickness of the front insulating tape 25 is 11-13um, and the raw material can be Fengyu FY-12800.

[0031] like Figure 1-2 As shown in the figure, in one embodiment, the side of the copper foil 21 closest to the display FPC 2 is adhesive, and the resistance between any two points on the copper foil 21 is less than 1 ohm. It should be noted that the copper foil 21 is 28-32 μm thick and made of materials such as Zhixing H7330G or Maxim MXCU-210-001711. The copper foil 21 has a surface resistance of less than 0.1 Ω / inch^2 and an on-resistance of less than 0.1 Ω / inch^2, demonstrating excellent electrical conductivity (antistatic) and shielding properties.

[0032] like Figure 1-2 As shown, in one embodiment, the diameter of the front side of the through hole 26 is 1.5 mm to 2 mm.

[0033] like Figure 1-2 As shown in the figure, in one embodiment, a corner cut is provided on the left side of the front surface of the copper foil 21 and the front insulating tape 25. This corner is provided with a foolproofing feature. It should be noted that the cut can be sized to C2*2. This makes it easier to observe whether the integrated copper foil 21 is missing the component protection paper, thus preventing problems such as short circuits in components 22 caused by missing protection paper on incoming materials.

[0034] like Figure 1-2 As shown in the figure, in one embodiment, a layer of PET film is laminated between the front surface of the copper foil 21 and the front insulating tape 25. It should be noted that the raw material can be Huizhixing H86U4T-NN-50 or Pintong PT-PT5050-002AXL, with a thickness of 28um-32um, to prevent the surface of the integrated copper foil 21 from being folded, scratched, or punctured, providing better protection.

[0035] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A copper foil and display module that is easy to attach and flat, characterized in that: include: Liquid crystal display (1) and display FPC (2); The front of the liquid crystal display (1) is provided with a cover plate (11), the center of the bottom of the front of the liquid crystal display (1) is provided with an IC (12), and the display FPC (2) is connected to the metal PIN at the center of the bottom of the liquid crystal display (1) through a binding position; A copper foil (21) is provided on the top of the front face of the display FPC (2), a front insulating adhesive tape (25) is provided on the surface of the copper foil (21), and a plurality of through holes (26) are opened on the copper foil (21).

2. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: Components (22) are provided on the left and right sides of the top of the front of the display FPC (2), and component insulating tape is provided on the surface of the component (22).

3. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: The front of the IC (12) is adhered with an IC protective film (13), and the length and width of the front of the IC protective film (13) are both greater than the length and width of the front of the IC (12).

4. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: A connector (24) is provided at the center of the bottom of the front side of the display FPC (2) and at the center of the bottom of the left side of the front side.

5. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: An FPC copper leak (23) is provided on the left side of the bottom of the front face of the display FPC (2), the copper foil (21) covers the FPC copper leak (23), and the through hole (26) opened on the copper foil (21) avoids the FPC copper leak (23).

6. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: The copper foil (21) and the front insulating adhesive tape (25) are integrally formed, and the total thickness of the copper foil (21) and the front insulating adhesive tape (25) together is 87um-97um.

7. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: The side of the copper foil (21) close to the display FPC (2) is a sticky surface, and the resistance between any two points on the copper foil (21) is less than 1 ohm.

8. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: The diameter of the front side of the through hole (26) is 1.5 mm to 2 mm.

9. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: The copper foil (21) and the front insulating tape (25) are provided with a cut corner at the left side of the front side, and the cut corner is provided with a foolproof treatment.

10. The copper foil and display module that are easy to attach and flat according to claim 1, characterized in that: A layer of PET film is laminated to the front surfaces of the copper foil (21) and the front insulating adhesive tape (25).

Images