EMI shielding film assembly for TFT liquid crystal display module

Abstract

The utility model discloses an EMI shielding film assembly used for a TFT liquid crystal display module, comprising an aluminum foil mylar body and a transparent PET film, the aluminum foil mylar body comprises an aluminum foil insulation surface and an aluminum foil conductive surface, the PET film is pasted on the aluminum foil conductive surface, and the PET film is provided with a pasting mark. And the insulating surface of the aluminum foil is a non-sticky surface. And the application mark is a pigment mark. The pasting mark is additionally arranged on the transparent and insulating PET film, so that a worker can check whether the PET film is missed to be pasted or not before pasting. And if the pasting mark is seen, the PET film is pasted. And if the pasting mark is not seen, the PET film is not pasted. By pasting the mark, the aluminum foil conductive surface of the aluminum foil mylar body can be effectively prevented from being in contact with a component to cause short circuit, abnormal display or non-display, the operation is convenient, and the reliability is good.

Description

Technical Field

[0001] The utility model relates to a TFT liquid crystal display module, more specifically, to an EMI shielding film component used for the TFT liquid crystal display module. Background Art

[0002] Usually, the FPC of the TFT liquid crystal display module is bent to the iron frame on the back of the backlight and adhered with double-sided tape. In order to improve the module's anti-interference ability, an EMI shielding film is usually pasted on the surface of the FPC component to prevent the device from being interfered with by the outside world. The structure of the EMI shielding film is black aluminum foil + transparent insulating PET, but due to the problem of missing paste when the EMI shielding film is pasted on the transparent insulating PET, the black aluminum foil is directly in contact with the component surface and short-circuited, resulting in abnormal display or no display.

[0003] Chinese invention patent document CN219718989U discloses a new type of transparent EMI shielding film, including a shielding film body, the top surface layer of the shielding film body is fixedly connected with a first shielding film layer, the bottom of the first shielding film layer is fixedly connected with a second shielding film layer, the bottom of the second shielding film layer is fixedly connected with a third shielding film layer, the bottom of the third shielding film layer is fixedly connected with a fourth shielding film layer, the bottom of the fourth shielding film layer is fixedly connected with a fifth shielding film layer, and the bottom of the fifth shielding film layer is fixedly connected with a sixth shielding film layer. The first shielding film layer is made of PET material, and the thickness of the first shielding film layer is 15nm to 20nm. The second shielding film layer is a silver-plated layer, and the thickness of the second shielding film layer is 20nm to 30nm. The third shielding film layer and the fifth shielding film layer are both made of acrylic adhesive material, and the thickness of the third shielding film layer and the fifth shielding film layer is 10nm. The fourth shielding film layer is made by pressing and shaping the silver-plated layer using PET material, and the thickness of the fourth shielding film layer is 26nm to 30nm. The sixth shielding film layer is formed by bonding with a PET release film, and the thickness of the sixth shielding film layer is 15nm to 20nm.

[0004] Obviously, the patent sets the first shielding film layer, the second shielding film layer, the third shielding film layer, the fourth shielding film layer, the fifth shielding film layer and the sixth shielding film layer. The transparent EMI shielding film is composed of multiple layers of different materials and conductive coatings, so that the EMI shielding film has high transparency. When applied to electronic equipment, the phenomenon inside the electronic equipment can be clearly seen, which greatly improves the maintainability and reliability of the equipment. In addition, the transparent EMI shielding film can also effectively prevent the influence of electromagnetic waves and ensure that the shielding effect is not lost. However, this structure cannot solve the problem that the existing insulating PET is easy to leak. Utility Model Content

[0005] Based on this, it is necessary to provide an EMI shielding film assembly for a TFT liquid crystal display module in response to the above technical problems. The EMI shielding film assembly for a TFT liquid crystal display module comprises an aluminum foil Mylar body and a transparent PET film. The aluminum foil Mylar body comprises an aluminum foil insulating surface and an aluminum foil conductive surface. The PET film is applied on the aluminum foil conductive surface, and an application mark is provided on the PET film. The aluminum foil insulating surface is a non-sticky surface. The application mark is a pigment mark. By adding an application mark to the transparent insulating PET film, employees can check whether the PET film is missed before applying it. If the application mark is seen, it means that the PET film has been applied. If the application mark is not seen, it means that the PET film is missed. Through the application mark, the aluminum foil conductive surface of the aluminum foil Mylar body can be effectively prevented from contacting components to cause short circuits, abnormal displays or no displays. The operation is convenient and the reliability is good.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An EMI shielding film assembly for a TFT liquid crystal display module is characterized in that the EMI shielding film assembly for a TFT liquid crystal display module comprises an aluminum foil Mylar body and a transparent PET film, the aluminum foil Mylar body comprises an aluminum foil insulating surface and an aluminum foil conductive surface, the PET film is adhered to the aluminum foil conductive surface, and an application mark is provided on the PET film.

[0008] As a preferred implementation of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, the insulating surface of the aluminum foil is a non-sticky surface.

[0009] As a preferred implementation of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, the application mark is a pigment mark.

[0010] As a preferred implementation of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, the application mark is red.

[0011] As a preferred implementation of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, the width of the application mark is 1 mm to 2 mm.

[0012] As a preferred implementation of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, the width of the application mark is 1.5 mm.

[0013] As a preferred embodiment of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, a first aluminum foil contrast mark is provided on the conductive surface of the aluminum foil, and the first aluminum foil contrast mark is parallel to the application mark.

[0014] As a preferred implementation of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, the first aluminum foil contrast mark is a color pigment.

[0015] As a preferred embodiment of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, a pair of second aluminum foil contrast marks are provided on the conductive surface of the aluminum foil, and the second aluminum foil contrast marks are perpendicular to the application marks.

[0016] As a preferred implementation of the EMI shielding film assembly for a TFT liquid crystal display module provided by the utility model, the second aluminum foil contrast mark is a color pigment.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides an EMI shielding film assembly for a TFT liquid crystal display module. By adding an application mark on a transparent insulating PET film, employees can check whether the PET film is missing before applying it. If the application mark is seen, it means that the PET film has been applied. If the application mark is not seen, it means that the PET film is missing. Through the application mark, it can effectively prevent the aluminum foil conductive surface of the aluminum foil Mylar body from contacting components to cause short circuits, abnormal displays or no displays. The operation is convenient and the reliability is good.

[0019] In addition, a first aluminum foil comparison mark can be provided on the conductive surface of the aluminum foil, and the first aluminum foil comparison mark is parallel to the application mark. The first aluminum foil comparison mark is a color pigment. By adding an application mark to the transparent insulating PET film, employees can check whether the PET film is missing before applying it. If two lines are seen, namely the first aluminum foil comparison mark and the application mark, it means that the PET film has been applied. If only one line is seen, namely the first aluminum foil comparison mark, it means that the PET film is missing. In addition, by judging whether the first aluminum foil comparison mark and the application mark are parallel, it can be known whether the application position of the PET film is appropriate, which further facilitates the operation.

[0020] In addition, a pair of second aluminum foil comparison marks can be provided on the conductive surface of the aluminum foil, and the second aluminum foil comparison marks are perpendicular to the application mark. The second aluminum foil comparison marks are colored pigments. By adding application marks on the transparent insulating PET film, employees can check whether the PET film is missing before applying it. If you see the "I" line, that is, the second aluminum foil comparison mark and the application mark, it means that the PET film has been applied. If you only see a pair of parallel lines, that is, the second aluminum foil comparison mark, it means that the PET film is missing. In addition, by referring to the position of the second aluminum foil comparison mark, the user can accurately determine whether the application position of the PET film is correct, which further facilitates the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of an EMI shielding film assembly for a TFT liquid crystal display module of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of an EMI shielding film assembly for a TFT liquid crystal display module, from another perspective;

[0024] Figure 3 for Figure 1 A schematic diagram of a three-dimensional structure decomposition of an EMI shielding film assembly for a TFT liquid crystal display module;

[0025] Figure 4 This is a three-dimensional structural schematic diagram of another embodiment of the EMI shielding film assembly for a TFT liquid crystal display module of the utility model;

[0026] Figure 5 for Figure 4 A schematic diagram of a three-dimensional structure decomposition of an EMI shielding film assembly for a TFT liquid crystal display module;

[0027] Figure 6 This is a three-dimensional structural schematic diagram of another embodiment of the EMI shielding film assembly for a TFT liquid crystal display module of the utility model;

[0028] Figure 7 for Figure 6 A schematic diagram of a three-dimensional structure decomposition of an EMI shielding film assembly for a TFT liquid crystal display module;

[0029] The markings in the figure are as follows: 1. Aluminum foil Mylar body; 11. Aluminum foil insulating surface; 12. Aluminum foil conductive surface; 121. First aluminum foil comparison mark; 122. Second aluminum foil comparison mark; 2. ET film; 21. Application mark. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0031] As described in the background technology, in the prior art, for TFT liquid crystal display modules, the FPC of the TFT liquid crystal display module is bent to the iron frame on the back of the backlight and adhered with double-sided tape. In order to improve the anti-interference ability of the module, an EMI shielding film is usually pasted on the surface of the FPC components to prevent the components from being interfered with by the outside world. The structure of the EMI shielding film is black aluminum foil + transparent insulating PET, but there is a problem of missing paste when the EMI shielding film is pasted on the transparent insulating PET, resulting in a short circuit when the black aluminum foil is pasted on the surface of the component, resulting in abnormal display or no display.

[0032] In order to solve this technical problem, the utility model provides an EMI shielding film assembly for a TFT liquid crystal display module, comprising an aluminum foil Mylar body 1 and a transparent PET film 2, wherein the aluminum foil Mylar body 1 comprises an aluminum foil insulating surface 11 and an aluminum foil conductive surface 12, the PET film 2 is pasted on the aluminum foil conductive surface 12, and an application mark 21 is provided on the PET film 2. The aluminum foil insulating surface 11 is a non-sticky surface. The application mark 21 is a pigment mark. The application mark 21 is red.

[0033] Through the above structural design, by adding the application mark 21 on the transparent insulating PET film 2, the employee can check whether the PET film 2 is missing before applying. If the application mark 21 is seen, it means that the PET film 2 has been applied. If the application mark 21 is not seen, it means that the PET film 2 is missing. Through the application mark 21, it can effectively prevent the aluminum foil conductive surface 12 of the aluminum foil Mylar body 1 from contacting components to cause short circuits, abnormal display or no display, which is convenient to operate and has good reliability.

[0034] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] Example 1

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the EMI shielding film assembly for the TFT liquid crystal display module includes an aluminum foil Mylar body 1 and a transparent PET film 2, the aluminum foil Mylar body 1 includes an aluminum foil insulating surface 11 and an aluminum foil conductive surface 12, the PET film 2 is adhered to the aluminum foil conductive surface 12, and an application mark 21 is provided on the PET film 2.

[0039] It should be noted that the aluminum foil insulating surface 11 is a non-sticky surface.

[0040] In addition, the application mark 21 is a pigment mark. Preferably, the application mark 21 is red.

[0041] In addition, the width of the application mark 21 is 1 mm to 2 mm. Preferably, the width of the application mark 21 is 1.5 mm.

[0042] The working mode of this embodiment is described below.

[0043] By adding an application mark 21 to the transparent insulating PET film 2, the employee can check whether the PET film 2 is missing before applying. If the application mark 21 is seen, it means that the PET film 2 has been applied. If the application mark 21 is not seen, it means that the PET film 2 is missing. The application mark 21 can effectively prevent the aluminum foil conductive surface 12 of the aluminum foil Mylar body 1 from contacting components to cause short circuits, abnormal display or no display, and the operation is convenient and the reliability is good.

[0044] Example 2

[0045] like Figure 4 and Figure 5As shown, the EMI shielding film assembly for the TFT liquid crystal display module provided in Example 1 is further optimized. Specifically, a first aluminum foil contrast mark 121 is provided on the aluminum foil conductive surface 12 , and the first aluminum foil contrast mark 121 is parallel to the application mark 21 .

[0046] It should be noted that the first aluminum foil contrast mark 121 is a color pigment.

[0047] The working mode of this embodiment is described below.

[0048] By adding the application mark 21 to the transparent insulating PET film 2, the staff can check whether the PET film 2 is missing before applying. If two lines are seen, namely the first aluminum foil comparison mark 121 and the application mark 21, it means that the PET film 2 has been applied. If only one line is seen, namely the first aluminum foil comparison mark 121, it means that the PET film 2 is missing. In addition, by judging whether the first aluminum foil comparison mark 121 and the application mark 21 are parallel, it can be known whether the application position of the PET film 2 is appropriate, which further facilitates the operation.

[0049] Example 3

[0050] The EMI shielding film assembly for a TFT liquid crystal display module provided in Example 1 or 2 is further optimized. Specifically, a pair of second aluminum foil contrast marks 122 are provided on the aluminum foil conductive surface 12 , and the second aluminum foil contrast marks 122 are perpendicular to the application mark 21 .

[0051] It should be noted that the second aluminum foil contrast mark 122 is a color pigment.

[0052] The working mode of this embodiment is described below.

[0053] By adding the application mark 21 to the transparent insulating PET film 2, the employee can check whether the PET film 2 is missing before applying. If the "I" line, i.e., the second aluminum foil comparison mark 122 and the application mark 21 are seen, it means that the PET film 2 has been applied. If only a pair of parallel lines, i.e., the second aluminum foil comparison mark 122, are seen, it means that the PET film 2 is missing. In addition, by referring to the position of the second aluminum foil comparison mark 122, the user can accurately determine whether the application position of the PET film 2 is correct, which further facilitates the operation.

[0054] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. An EMI shielding film assembly for a TFT liquid crystal display module, characterized in that: The EMI shielding film assembly for a TFT liquid crystal display module comprises an aluminum foil Mylar body (1) and a transparent PET film (2), wherein the aluminum foil Mylar body (1) comprises an aluminum foil insulating surface (11) and an aluminum foil conductive surface (12), the PET film (2) is adhered to the aluminum foil conductive surface (12), and an application mark (21) is provided on the PET film (2).

2. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 1, characterized in that: The aluminum foil insulating surface (11) is a non-sticky surface.

3. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 1, characterized in that: The application mark (21) is a pigment mark.

4. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 1, characterized in that: The application mark (21) is red.

5. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 1, characterized in that: The width of the application mark (21) is 1 mm to 2 mm.

6. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 5, characterized in that: The width of the application mark (21) is 1.5 mm.

7. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 1, characterized in that: A first aluminum foil comparison mark (121) is provided on the aluminum foil conductive surface (12), and the first aluminum foil comparison mark (121) and the application mark (21) are parallel to each other.

8. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 7, characterized in that: The first aluminum foil contrast mark (121) is a color pigment.

9. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 1, characterized in that: A pair of second aluminum foil comparison marks (122) are provided on the aluminum foil conductive surface (12), and the second aluminum foil comparison marks (122) and the application marks (21) are perpendicular to each other.

10. The EMI shielding film assembly for a TFT liquid crystal display module according to claim 9, characterized in that: The second aluminum foil contrast mark (122) is a color pigment.

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