Electromagnetic shielding copper foil structure and integrated touch display module

Abstract

The utility model discloses an electromagnetic shielding copper foil structure and an integrated touch control display module, and relates to the field of display modules, the electromagnetic shielding copper foil structure comprises a copper foil body, IC insulation protection paper and component insulation protection paper, the copper foil body is provided with a gap for avoiding a component, and the gap is provided with a gap for avoiding the component. The component insulation protection paper and the IC insulation protection paper are attached to the surface of one side of the copper foil body to form an integrated structure, the component insulation protection paper is arranged at the notch of the copper foil body, the IC insulation protection paper covers the IC chip, the component insulation protection paper covers the component, and the component insulation protection paper is arranged at the notch of the copper foil body. The copper foil body is attached to the main screen FPC and extends to the IC chip, and the surface of the main screen FPC is provided with a copper leakage area attached to the copper foil body. According to the utility model, the use of copper foils can be reduced, the material cost is reduced, the heat dissipation and normal work of components are ensured, the total thickness of the FPC at the positions of the components is reduced, integrated material feeding is realized, the FPC can be attached to a product at one time, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of display module technology, and in particular to an electromagnetic shielding copper foil structure and an integrated touch display module. Background Technology

[0002] In integrated touch display module structures, to achieve good electromagnetic shielding, a copper foil is attached to the IC and FPC of the display screen. A grounded exposed copper area is then added to the FPC to adhere to the copper foil, forming an electromagnetic shielding layer. Since the IC surface is not GND (ground terminal), an insulating paper is added between the copper foil and the IC surface to reduce interference. This significantly reduces signal radiation from the IC's internal operation and from the circuitry covered by the copper foil on the FPC, thus mitigating interference with the phone's antenna signal. Additionally, a protective paper is added to the FPC components to prevent short circuits and scratches. However, these operations require applying materials twice to the FPC surface, impacting production efficiency.

[0003] Patent application number CN202421078250.2 discloses an electromagnetic shielding copper foil structure and a touch display module. The background section describes that the insulating protective paper and copper foil are supplied as a single piece. The copper foil structure includes: copper foil insulating protective paper, a copper foil body, IC insulating protective paper, and component insulating protective paper. The copper foil insulating protective paper is attached to one side of the copper foil body, and the IC insulating protective paper and the component insulating protective paper are respectively attached to the other side of the copper foil body. One end of the IC insulating protective paper extends away from the copper foil insulating protective paper and the copper foil body to form a first identification protrusion. Corresponding clearance holes are respectively formed on the copper foil insulating protective paper and the copper foil body, and the clearance holes are located at the component insulating protective paper. While this type of copper foil structure allows for direct identification of whether insulating protective paper is attached to the IC chip and FPC components from the front of the touch display module, thus preventing short circuits caused by missing insulating protective paper, it also covers the components on the FPC, affecting heat dissipation and potentially leading to signal short circuits and disrupting normal component operation. Furthermore, it increases material costs. Therefore, this invention discloses an electromagnetically shielded copper foil structure and an integrated touch display module to solve these problems. Utility Model Content

[0004] Therefore, it is necessary to address the aforementioned technical issues by providing an electromagnetic shielding copper foil structure and an integrated touch display module. This reduces the use of copper foil, lowers material costs, ensures heat dissipation and normal operation of components, reduces the total thickness of the FPC at the component location, ensures the flexibility of the FPC, enables integrated material feeding, and allows for one-time attachment to the product, thereby improving production efficiency.

[0005] To solve the above technical problems, the utility model adopts the technical scheme as follows:

[0006] An electromagnetic shielding copper foil structure, which comprises a copper foil body, IC insulation protection paper and component insulation protection paper, a notch for avoiding components is arranged on the copper foil body, the component insulation protection paper and the IC insulation protection paper are attached to one side surface of the copper foil body to form an integrated structure, and the component insulation protection paper is arranged at the notch of the copper foil body.

[0007] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the other side surface of the copper foil body is further provided with copper foil insulation protection paper, and the outer contour size of the copper foil insulation protection paper is consistent with the outer contour size of the copper foil body.

[0008] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the width of the part where the component protection paper and the copper foil body are bonded is 0.5-2 mm.

[0009] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the thickness of the copper foil body is 8-12 microns.

[0010] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the thickness of the IC insulation protection paper and the component insulation protection paper is 10-20 microns.

[0011] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the IC insulation protection paper is provided with a protruding part, and the protruding part extends beyond the edge of the copper foil body.

[0012] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the protruding part is arranged at at least one end of the IC insulation protection paper, and the protruding part is provided with an identification mark.

[0013] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the copper foil body is surrounded by the notch, and the component insulation protection paper is bonded to the copper foil body at all around.

[0014] Further provided is an integrated touch display module, which comprises a backlight structure, a display screen and a cover plate, the display screen is provided with a binding area, the binding area is bound with an IC chip and a main screen FPC, the main screen FPC is provided with components, the IC insulation protection paper is arranged above the IC chip, the component insulation protection paper is arranged above the components, the copper foil body is attached to the main screen FPC and extends above the IC chip, and the surface of the main screen FPC is provided with a copper leakage area attached to the copper foil body.

[0015] As a preferred embodiment of the electromagnetic shielding copper foil structure provided by the utility model, the display screen comprises upper polarizer, upper glass sheet, lower glass sheet and lower polarizer which are sequentially stacked, one end of the lower glass sheet extends in a direction away from the upper glass sheet to form a single-layer structure, and the binding area is located on the single-layer structure.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The electromagnetic shielding copper foil structure and the integrated touch display module provided by the utility model can reduce the use of copper foil, reduce material cost, avoid affecting components by avoiding components through the notch, ensure heat dissipation and normal work of the components, cancel adhesion of the component insulation protection paper, reduce the adhesive layer, reduce the total thickness of FPC at the component position, ensure the flexibility of FPC, and integrate the IC insulation protection paper and the component insulation protection paper with the copper foil body to form an integrated structure, realize integrated incoming material, attach to the product at one time, and improve production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the scheme in the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the drawings without creating labor.

[0019] Figure 1 It is a front view of the embodiment one of the electromagnetic shielding copper foil structure provided by the utility model.

[0020] Figure 2 It is a back view of the embodiment one of the electromagnetic shielding copper foil structure provided by the utility model.

[0021] Figure 3 It is a side view of the embodiment one of the electromagnetic shielding copper foil structure provided by the utility model.

[0022] Figure 4 It is a front view of the embodiment two of the electromagnetic shielding copper foil structure provided by the utility model.

[0023] Figure 5 It is a back view of the embodiment two of the electromagnetic shielding copper foil structure provided by the utility model.

[0024] Figure 6 It is a plane view of an embodiment structure of the integrated touch display module provided by the utility model.

[0025] Figure 7 A side view of one embodiment structure of the integrated touch display module provided by the present application is shown in the figure;

[0026] Figure 8 A plane view of another embodiment structure of the integrated touch display module provided by the present application is shown in the figure;

[0027] Figure 9 A side view of another embodiment structure of the integrated touch display module provided by the present application is shown in the figure.

[0028] The figure mark description is as follows:

[0029] 1, copper foil body; 2, IC insulation protection paper; 3, component insulation protection paper; 4, notch; 5, copper foil insulation protection paper; 6, protruding part; 7, backlight structure; 8, display screen; 81, upper polaroid; 82, upper glass; 83, lower glass; 84, lower polaroid; 9, cover plate; 10, binding area; 11, IC chip; 12, main screen FPC; 13, backlight FPC; 14, copper leakage area. DETAILED DESCRIPTION

[0030] In order to make the person in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0031] As described in the background, in the integrated touch display module structure, in order to achieve good electromagnetic shielding effect, a copper foil will be pasted on the IC to the FPC of the display screen, the FPC is correspondingly increased with a ground exposed copper area and the copper foil is pasted, forming an electromagnetic shielding layer; since the IC surface is not GND (ground terminal), in order to reduce the influence, an insulating paper will be added between the copper foil and the IC surface, greatly reducing the signal radiation caused by the IC internal work and the circuit covered by the copper foil on the FPC, thereby weakening the interference to the antenna signal of the mobile phone. In addition, a layer of protection paper also needs to be added on the FPC element to prevent the surface of the element from short circuiting, scratching and other problems. However, the above operation needs to paste two materials separately on the surface of the FPC, which affects the production efficiency;

[0032] The existing copper foil structure can directly identify whether the insulating protective paper is attached to the IC chip and the FPC component from the front of the touch display module, thereby avoiding the short circuit problem caused by the missing of the insulating protective paper, but the copper foil structure covers the components on the FPC after being covered on the FPC, which affects the heat dissipation of the components, easily causes signal short circuit, affects the normal work of the components, and increases the material cost.

[0033] In order to solve the technical problem, the utility model provides a kind of electromagnetic shielding copper foil structure and integrated touch display module, it is applied to display module field.

[0034] Specifically, please refer to Figures 1-5 The electromagnetic shielding copper foil structure specifically includes copper foil body 1, IC insulating protective paper 2 and component insulating protective paper 3, the copper foil body 1 is provided with the notch 4 avoiding component, the component insulating protective paper 3 and IC insulating protective paper 2 are attached to the side surface of copper foil body 1, form integrated structure, and the component insulating protective paper 3 is located at the notch 4 of copper foil body 1.

[0035] Specifically, please refer to Figures 6-9 The integrated touch display module specifically includes backlight structure 7, display screen 8 and cover plate 9, the display screen 8 is provided with binding area 10, the binding area 10 is bound with IC chip 11 and main screen FPC 12, the main screen FPC 12 has component, the IC insulating protective paper 2 is covered on IC chip 11, the component insulating protective paper 3 is covered on component, the copper foil body 1 is attached with main screen FPC 12 and extends to IC chip 11 and the surface of main screen FPC 12 is provided with copper leakage area 14 attached with copper foil body 1.

[0036] The electromagnetic shielding copper foil structure and integrated touch display module provided by the utility model can reduce the use of copper foil by setting notch 4 on copper foil body 1, reduce material cost, notch 4 avoids component to avoid the influence on component, ensure the heat dissipation and normal work of component, component insulating protective paper 3 can cancel adhesion, reduce adhesive layer, reduce the total thickness of FPC at component position, ensure the flexibility of FPC, simultaneously, IC insulating protective paper 2 and component insulating protective paper 3 are attached together with copper foil body 1 to form integrated structure, realize integrated incoming material, can be attached to product at one time, improve production efficiency.

[0037] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be described clearly and completely in conjunction with the drawings.

[0038] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0039] It should be noted that like reference numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it need not be further defined and explained in subsequent views.

[0040] Embodiment one

[0041] Please refer to Figures 1-3 , provides a kind of electromagnetic shielding copper foil structure, it includes copper foil body 1, IC insulation protection paper 2 and component insulation protection paper 3, copper foil body 1 is equipped with the notch 4 avoiding component, notch 4 is located in the corner of copper foil body 1 in this example, not closed state, component insulation protection paper 3 and IC insulation protection paper 2 are attached with the side surface of copper foil body 1, and component insulation protection paper 3 is located at the notch 4 of copper foil body 1, the side surface of copper foil body 1 is adhesive surface, forms integrated structure, specifically, the component insulation protection paper 3 of original secondary attachment is extended close to the position of the two side edges of copper foil body 1 to coincide with copper foil body 1, so as to achieve the adhesion and fixation of component insulation protection paper 3 and copper foil body 1, IC insulation protection paper 2 is directly bonded and fixed with the adhesive surface of copper foil body 1.

[0042] Further, the other side surface of copper foil body 1 is also provided with copper foil insulation protection paper 5, the outer contour size of copper foil insulation protection paper 5 is consistent with the outer contour size of copper foil body 1, copper foil insulation protection paper 5 is used to isolate and protect copper foil body 1, avoid scratching, adopt integrated blanking die cutting mode to form the shape of copper foil body 1 and copper foil insulation protection paper 5, avoid the problem of deviation of both.

[0043] Further, the width of the adhesion part of component protection paper and copper foil is 0.5-2mm, the coincident part is located below the adhesion of copper foil body 1 to FPC, the thickness of copper foil body 1 is 8-12 microns, which can reduce the influence on the flexibility of FPC.

[0044] The thickness of IC insulation protection paper 2 and component insulation protection paper 3 is 10-20 microns, which is used to protect component and IC chip 11 and play the role of isolating external signal radiation, so as to weaken signal interference.

[0045] The IC insulation protection paper 2 has a protruding part 6 extending out of the edge of the copper foil body 1, which can be directly identified from the appearance of the touch display module whether there is a missing IC chip 11 on the IC insulation protection paper 2, and the protruding part 6 is arranged at least one end of the IC insulation protection paper 2, and in this example, the protruding part 6 is arranged at one end of the IC insulation protection paper, and the protruding part 6 has a mark, which is a silk-screen eye-catching pattern, or a silk-screen eye-catching color, and in this example, the mark is a silk-screen red or yellow ink layer.

[0046] Embodiment two

[0047] The electromagnetic shielding copper foil structure and the integrated touch display module provided in embodiment one are further optimized, and specifically, as shown in Figure 4 , Figure 5 The copper foil body 1 is surrounded by a notch 4, so that the notch 4 forms a slot structure, and the component insulation protection paper 3 is extended and enlarged in the direction of the copper foil body 1 around the four sides, so that the component insulation protection paper 3 is bonded to the copper foil body 1 around the four sides. The protection paper and the copper foil are also made into an integrated material, and the component insulation protection paper 3 can also cancel the adhesion, reduce the adhesive layer, and accordingly reduce the total thickness of the component position, thereby ensuring the bending flexibility of the FPC.

[0048] Embodiment three

[0049] Please refer to Figures 6-9 , an integrated touch display module, which comprises a backlight structure 7, a display screen 8 and a cover plate 9, the display screen 8 is provided with a binding area 10, the binding area 10 is bound with an IC chip 11 and a main screen FPC 12, a backlight FPC 13 in the backlight structure 7 is electrically connected with the main screen FPC 12, the main screen FPC 12 has a component, the component is electrically connected with the main screen FPC 12, an IC insulation protection paper 2 covers the IC chip 11, a component insulation protection paper 3 covers the component, a copper foil body 1 is bonded with the main screen FPC 12 and extends to the IC chip 11, and the surface of the main screen FPC 12 is provided with a copper leakage area 14 bonded with the copper foil body 1, and the copper foil body 1 is electrically connected with the copper leakage area 14.

[0050] Further, the display screen 8 comprises an upper polarizer 81, an upper glass 82, a lower glass 83 and a lower polarizer 84 arranged in sequence, one end of the lower glass 83 extends away from the upper glass 82 to form a single-layer structure, and the binding area 10 is located on the single-layer structure, wherein the upper glass 82 is a color filter, and the lower glass 83 is a TFT (Thin Film Transistor) glass.

[0051] The working principle of the electromagnetic shielding copper foil structure and integrated touch display module provided by this utility model is as follows: By setting a notch 4 on the copper foil body 1, the use of copper foil can be reduced, thus reducing material costs. The notch 4 avoids the components, preventing any impact on the components and ensuring the heat dissipation and normal operation of the components. The component insulating protective paper 3 can eliminate the adhesive, reducing the adhesive layer and the total thickness of the FPC at the component location, thus ensuring the flexibility of the FPC. At the same time, the IC insulating protective paper 2 and the component insulating protective paper 3 are bonded together with the copper foil body 1 to form an integrated structure, realizing integrated material supply, which can be attached to the product in one go, improving production efficiency.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An electromagnetic shielding copper foil structure, comprising a copper foil body, IC insulating protective paper and component insulating protective paper, wherein the copper foil body has a notch to avoid the components, and the component insulating protective paper and IC insulating protective paper are attached to one side surface of the copper foil body to form an integral structure, and the component insulating protective paper is located at the notch of the copper foil body.

2. The electromagnetic shielding copper foil structure according to claim 1, characterized in that, The other side surface of the copper foil body is also provided with copper foil insulating protective paper, and the outer contour dimensions of the copper foil insulating protective paper are consistent with the outer contour dimensions of the copper foil body.

3. The electromagnetic shielding copper foil structure according to claim 1, characterized in that, The width of the part where the protective paper for the components is bonded to the copper foil is 0.5-2mm.

4. The electromagnetic shielding copper foil structure according to claim 1, characterized in that, The thickness of the copper foil body is 8-12 micrometers.

5. The electromagnetic shielding copper foil structure according to claim 1, characterized in that, The thickness of the IC insulating protective paper and the component insulating protective paper is 10-20 micrometers.

6. The electromagnetic shielding copper foil structure according to claim 1, characterized in that, The IC insulating protective paper has raised portions that extend beyond the edge of the copper foil body.

7. The electromagnetic shielding copper foil structure according to claim 6, characterized in that, The protrusion is located at at least one end of the IC insulating protective paper and has a marking on it.

8. The electromagnetic shielding copper foil structure according to claim 1, characterized in that, The copper foil body is surrounded by a notch, and the insulating protective paper for the components is bonded to the copper foil body on all four sides.

9. An integrated touch display module, characterized in that, The electromagnetic shielding copper foil structure according to any one of claims 1-8 further includes a backlight structure, a display screen, and a cover plate. The display screen has a bonding area, and the bonding area is bonded to an IC chip and a main screen FPC. The main screen FPC has components. The IC insulating protective paper covers the IC chip, and the component insulating protective paper covers the components. The copper foil body is attached to the main screen FPC and extends to the IC chip, and the surface of the main screen FPC has a copper leakage area that is attached to the copper foil body.

10. An integrated touch display module according to claim 9, characterized in that, The display screen includes an upper polarizer, an upper glass, a lower glass and a lower polarizer stacked in sequence. One end of the lower glass extends away from the upper glass to form a single-layer structure, and the bonding area is located on the single-layer structure.

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