Electromagnetic shielding copper foil structure and touch display module

Abstract

The utility model discloses an electromagnetic shielding copper foil structure and a touch control display module, the electromagnetic shielding copper foil structure comprises copper foil insulation protection paper, a copper foil body, IC insulation protection paper and component insulation protection paper, the copper foil insulation protection paper is attached to one side surface of the copper foil body, and the component insulation protection paper is attached to the other side surface of the copper foil body. The IC insulation protection paper and the component insulation protection paper are respectively attached to the other side surface of the copper foil body; one end of the IC insulation protection paper extends in the direction away from the copper foil insulation protection paper and the copper foil body to form a first identification protruding part. The copper foil insulation protection paper and the copper foil body are respectively provided with corresponding avoiding holes, and the avoiding holes are located at the component insulation protection paper. Therefore, through the first identification protruding part, whether the IC insulation protection paper is attached to the IC chip or not can be directly identified from the front face of the touch display module; whether the component insulation protection paper is attached to the component on the FPC or not can be seen through the copper foil insulation protection paper and the copper foil body through the avoiding hole.

Description

Technical Field

[0001] The utility model relates to the field of touch display module production and manufacturing, in particular to an electromagnetic shielding copper foil structure and a touch display module. Background Art

[0002] In the touch display module, in order to achieve a good electromagnetic shielding effect, an electromagnetic shielding copper foil is usually attached from the IC chip of the display screen to the FPC (flexible circuit board), and a grounding copper exposed area is added on the FPC to fit with the copper foil to form an electromagnetic shielding layer. Since the surface of the IC chip and FPC components is not GND (wire grounding terminal), in order to reduce the impact, it is necessary to add insulating protective paper at the IC chip on the display screen and the components on the FPC to avoid direct contact between the copper foil and the IC chip and the components on the FPC. Usually, in order to improve efficiency, the insulating protective paper and the copper foil are integrated, but because the copper foil is non-transparent, after the electromagnetic shielding copper foil is attached to the display module, the copper foil will cover the insulating protective paper on the IC chip and the FPC components; and if the insulating protective paper on the IC chip and the FPC components is missing, it cannot be directly identified from the appearance, resulting in the failure to detect defective products in time, which will cause the copper foil to directly contact the IC chip and the FPC components, resulting in a short circuit problem, affecting the use of the product. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an electromagnetic shielding copper foil structure and a touch display module, so that it is possible to directly identify from the front of the touch display module whether insulating protective paper is attached to the IC chip and FPC components, thereby avoiding the problem of short circuit of the entire product caused by missing insulating protective paper.

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

[0005] An electromagnetic shielding copper foil structure comprises: copper foil insulation protection paper, a copper foil body, IC insulation protection paper and component insulation protection paper, wherein the copper foil insulation protection paper is attached to one side surface of the copper foil body, and the IC insulation protection paper and the component insulation protection paper are respectively attached to the other side surface of the copper foil body; one end of the IC insulation protection paper extends away from the copper foil insulation protection paper and the copper foil body to form a first identification protrusion; the copper foil insulation protection paper and the copper foil body are respectively provided with corresponding avoidance holes, and the avoidance holes are located at the component insulation protection paper.

[0006] In one embodiment, the edge of the copper foil insulation protection paper is aligned with the edge of the copper foil body.

[0007] In one embodiment, the other end of the IC insulating protection paper extends away from the copper foil insulating protection paper and the copper foil body to form a second identification protrusion.

[0008] In one embodiment, the thickness of the copper foil body is 0.03 mm.

[0009] In one embodiment, the thickness of the IC insulating protection paper is 0.012 mm.

[0010] In one of the embodiments, the thickness of the component insulation protection paper is 0.05 mm.

[0011] In one embodiment, the thickness of the copper foil insulation protective paper is 0.012 mm.

[0012] In one embodiment, the avoidance hole is in the shape of a square or circular structure.

[0013] A touch display module comprises the above-mentioned electromagnetic shielding copper foil structure, and also comprises a cover plate, a display screen and a backlight structure, wherein the cover plate, the display screen and the backlight structure are stacked in sequence, a binding area is provided on the display screen, an IC chip and an FPC are bound to the binding area, the IC insulating protection paper covers the IC chip, and the component insulating protection paper covers the components on the FPC.

[0014] In one embodiment, the display screen includes an upper polarizer, an upper glass, a lower glass and a lower polarizer stacked in sequence, the lower end of the lower glass extends away from the upper glass to form a protrusion, and the binding area is located on the protrusion.

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

[0016] The electromagnetic shielding copper foil structure and touch display module of the utility model form a first identification protrusion by extending one end of the IC insulation protection paper in a direction away from the copper foil insulation protection paper and the copper foil body, so that it is possible to directly identify from the front of the touch display module whether the IC chip is attached with the IC insulation protection paper; at the same time, corresponding avoidance holes are respectively opened on the copper foil insulation protection paper and the copper foil body, so that the component insulation protection paper is exposed, so that it is possible to identify through the copper foil insulation protection paper and the copper foil body whether the components on the FPC are attached with the component insulation protection paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a structural schematic diagram of a touch display module in one embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the stacking structure of the touch display module in one embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the exploded structure of the electromagnetic shielding copper foil structure in one embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the back structure of the electromagnetic shielding copper foil structure in one embodiment of the utility model;

[0022] Figure 5 It is a schematic side view of the electromagnetic shielding copper foil structure in one embodiment of the utility model;

[0023] Figure 6 It is a front view structural schematic diagram of the electromagnetic shielding copper foil structure in one embodiment of the utility model. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, an electromagnetic shielding copper foil structure 11 includes: copper foil insulation protection paper 100, a copper foil body 200, IC insulation protection paper 300 and component insulation protection paper 400, the copper foil insulation protection paper 100 is attached to one side of the copper foil body 200, and the IC insulation protection paper 300 and the component insulation protection paper 400 are respectively attached to the other side of the copper foil body 200; one end of the IC insulation protection paper 300 extends away from the copper foil insulation protection paper 100 and the copper foil body 200 to form a first identification protrusion 310; the copper foil insulation protection paper 100 and the copper foil body 200 are respectively provided with corresponding avoidance holes 210, and the avoidance holes 210 are located at the component insulation protection paper 400.

[0026] It should be noted that after the electromagnetic shielding copper foil structure is attached to the touch display module, a first identification protrusion 310 is formed by extending one end of the IC insulating protective paper away from the copper foil insulating protective paper and the copper foil body. In this way, it is possible to directly identify from the front of the touch display module whether the IC chip is attached with IC insulating protective paper; at the same time, corresponding avoidance holes are respectively opened on the copper foil insulating protective paper and the copper foil body, so that the component insulating protective paper is exposed. In this way, it is possible to identify through the copper foil insulating protective paper and the copper foil body whether the components on the FPC are attached with component insulating protective paper. However, it should be noted that the avoidance hole 310 needs to be set away from the components to avoid reducing the shielding effect on the components. Furthermore, it should be noted that the copper foil insulating protective paper 100 is used to isolate and protect the copper foil to prevent problems such as oxidation, short circuit, scratches and contamination on the copper foil surface; the copper foil body 200 is separated from the IC chip on the touch display module by the IC insulating protective paper 300, thereby avoiding the copper foil body 200 from contacting the IC chip and causing a short circuit; at the same time, the copper foil body is separated from the components on the touch display module FPC by the component insulating protective paper 400, thereby avoiding the copper foil body 200 from contacting the components and causing a short circuit. Furthermore, the copper foil insulation protective paper 100 and the copper foil body 200 are respectively provided with corresponding avoidance holes 210, which means that the copper foil insulation protective paper 100 and the copper foil body 200 are both provided with avoidance holes 210, and the two avoidance holes 210 are aligned with each other. For example, after the copper foil insulation protective paper 100 and the copper foil body 200 are bonded to each other, the avoidance holes 210 can be formed by integrated punching and die-cutting, thereby avoiding the avoidance holes on the foil insulation protective paper 100 and the copper foil body 200 from being unable to align.

[0027] Furthermore, the edge of the copper foil insulation protection paper 100 is aligned with the edge of the copper foil body 200. Thus, the copper foil body 200 can be isolated and protected by the copper foil insulation protection paper 100. For example, after the copper foil insulation protection paper 100 and the copper foil body 200 are attached to each other, the required shape of the copper foil body and the copper foil insulation protection paper 100 can be formed by integrated punching and die-cutting to avoid the problem of displacement between the two.

[0028] Furthermore, the other end of the IC insulating protective paper 300 extends away from the copper foil insulating protective paper 100 and the copper foil body 200 to form a second identification protrusion 320. That is, the two ends of the IC insulating protective paper 300 are larger than the copper foil body 200 and extend outward, so that the coverage area of ​​the IC insulating protective paper 300 on the IC chip and the display screen glass area corresponding to the IC chip can be increased, thereby further improving the protection of the IC chip and the display screen glass area. At the same time, through the first identification protrusion 310 and the second identification protrusion 320, it is possible to directly identify whether there is any IC insulating protective paper missing on the IC chip from the appearance of the touch display module.

[0029] Preferably, the thickness of the copper foil body 200 is 0.03 mm.

[0030] Preferably, the thickness of the IC insulating protection paper 300 is 0.012 mm.

[0031] Preferably, the thickness of the component insulation protection paper 400 is 0.05 mm.

[0032] Preferably, the thickness of the copper foil insulation protection paper 100 is 0.012 mm.

[0033] Preferably, the avoidance hole 310 is in a square or circular shape. The avoidance hole can be in any shape. When a square avoidance hole 310 is used, it is necessary to note that the corner area should be rounded to avoid tearing.

[0034] See also Figure 1 As shown, a touch display module includes the above-mentioned electromagnetic shielding copper foil structure 10 and also includes a cover plate 12, a display screen 13 and a backlight structure 14. The cover plate 12, the display screen 13 and the backlight structure 14 are stacked in sequence. A binding area is provided on the display screen 13, and an IC chip 13a and an FPC 14 are bound to the binding area. The IC insulating protection paper covers the IC chip, and the component insulating protection paper 400 covers the components on the FPC 14.

[0035] Specifically, the display screen 13 includes an upper polarizer 13b, an upper glass 13c, a lower glass 13d and a lower polarizer 13e stacked in sequence, the lower end of the lower glass 13d extends away from the upper glass 13c to form a raised portion, and the binding area is located on the raised portion. The upper glass 13b is a color filter, and the lower glass 13c is a TFT (Thin Film Transistor) glass.

[0036] 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 electromagnetic shielding copper foil structure, characterized in that: include: Copper foil insulation protection paper, a copper foil body, IC insulation protection paper and component insulation protection paper, wherein the copper foil insulation protection paper is attached to one side of the copper foil body, and the IC insulation protection paper and the component insulation protection paper are attached to the other side of the copper foil body respectively; One end of the IC insulating protection paper extends in a direction away from the copper foil insulating protection paper and the copper foil body to form a first identification protrusion; The copper foil insulation protection paper and the copper foil body are respectively provided with avoidance holes corresponding to each other, and the avoidance holes are located at the component insulation protection paper.

2. The electromagnetic shielding copper foil structure according to claim 1, characterized in that: The edge of the copper foil insulating protection paper is aligned with the edge of the copper foil body.

3. The electromagnetic shielding copper foil structure according to claim 1, characterized in that: The other end of the IC insulating protection paper extends in a direction away from the copper foil insulating protection paper and the copper foil body to form a second identification protrusion.

4. The electromagnetic shielding copper foil structure according to claim 1, characterized in that: The thickness of the copper foil body is 0.03 mm.

5. The electromagnetic shielding copper foil structure according to claim 1, characterized in that: The thickness of the IC insulating protection paper is 0.012 mm.

6. The electromagnetic shielding copper foil structure according to claim 1, characterized in that: The thickness of the component insulation protection paper is 0.05 mm.

7. The electromagnetic shielding copper foil structure according to claim 1, characterized in that: The thickness of the copper foil insulation protection paper is 0.012 mm.

8. The electromagnetic shielding copper foil structure according to claim 1, characterized in that: The avoidance hole is in a square or circular shape.

9. A touch display module, comprising the electromagnetic shielding copper foil structure according to any one of claims 1 to 8, characterized in that: It also includes a cover plate, a display screen and a backlight structure, wherein the cover plate, the display screen and the backlight structure are stacked in sequence, a binding area is provided on the display screen, an IC chip and an FPC are bound to the binding area, the IC insulating protection paper covers the IC chip, and the component insulating protection paper covers the components on the FPC.

10. The 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, the lower end of the lower glass extends away from the upper glass to form a raised portion, and the binding area is located on the raised portion.

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