CN218941664U

CN218941664U - Scratch-resistant electromagnetic shielding film and liquid crystal display screen

Info

Publication number: CN218941664U
Application number: CN202222948584.8U
Authority: CN
Inventors: 王崇雨; 章小和; 杨佳迪
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-04-28
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses an anti-scratch electromagnetic shielding film and a liquid crystal display screen, wherein a transfer film is arranged on the uppermost surface of the electromagnetic shielding film, in the production and manufacturing process of a display module, the transfer film can protect the fragile part of the electromagnetic shielding film so as to avoid being scratched by foreign matters, and the transfer film is divided into two parts by a cutting line due to the cutting line arranged on the transfer film, a first film tearing handle is arranged on the transfer film below the cutting line, a second film tearing handle is arranged on the transfer film above the cutting line, after the electromagnetic shielding film is stuck on an FPC, the upper edge part or the lower edge part of the transfer film can be torn off by one of the film tearing handles, and the other part of the transfer film is still reserved, so that the transfer film can still protect the other part of the transfer film. When the subsequent process is finished, the other part of the grabbing film can be torn off through the other film tearing handle, and the release of the transfer film is finished, so that the transfer film can protect the fragile part of the electromagnetic shielding film in stages.

Description

Scratch-resistant electromagnetic shielding film and liquid crystal display screen

Technical Field

The utility model relates to the technical field of electromagnetic shielding of electronic components, in particular to an anti-scratch electromagnetic shielding film and a liquid crystal display screen.

Background

At present, mobile phone products are widely applied to the daily life of masses, and have high demands in the industry for liquid crystal display modules, FPC is bound in the traditional liquid crystal display modules, and the FPC needs to be attached with an electromagnetic shielding film. The electromagnetic shielding film is easy to scratch fragile parts by foreign matters in the production and manufacturing process of the liquid crystal display module, poor appearance of the electromagnetic shielding film is caused, abnormal operation of the electromagnetic shielding film can be caused when serious, the probability of defective products of the electromagnetic shielding film is increased, the production and manufacturing cost of the electromagnetic shielding film can be greatly increased, and accordingly the product competitiveness of the electromagnetic shielding film is reduced, and the increasing quality requirements of enterprises cannot be met.

Disclosure of Invention

The utility model aims to solve the technical problem of avoiding damaging the fragile part of the electromagnetic shielding film in the production and manufacturing process of the liquid crystal display module and protecting the fragile part from being scratched by foreign matters.

Because the top of the electromagnetic shielding film is provided with the transfer film, in the production and manufacturing process of the display module, the transfer film can protect the fragile part of the electromagnetic shielding film so as to avoid the fragile part from being scratched by foreign matters, thereby avoiding the bad appearance of the electromagnetic shielding film, further avoiding the abnormal operation of the electromagnetic shielding film, reducing the probability of defective products of the electromagnetic shielding film, greatly reducing the production and manufacturing cost of the electromagnetic shielding film, improving the product competitiveness of the electromagnetic shielding film, and meeting the increasingly growing quality requirements of enterprises. And because the cutting line is arranged on the transfer film, the transfer film is divided into two parts by the cutting line, the transfer film below the cutting line is provided with the first film tearing handle, the transfer film above the cutting line is provided with the second film tearing handle, and the upper part or the lower part of the transfer film can be torn off by one of the film tearing handles after the electromagnetic shielding film is adhered to the FPC, so that the other part of the transfer film can be still reserved, and the other part of the transfer film can be still protected. When the subsequent process is finished, the other part of the grabbing film can be torn off through the other film tearing handle, and the release of the transfer film is finished, so that the transfer film can protect the fragile part of the electromagnetic shielding film in stages.

The technical problems to be solved by the utility model are realized by the following technical scheme:

in order to solve the technical problems, the utility model provides an anti-scratch electromagnetic shielding film which is used for electromagnetic shielding of electronic components in a display module, and comprises a transfer film, a front insulating adhesive tape, a copper foil and a component insulating adhesive tape which are sequentially overlapped from top to bottom, wherein a cutting line is arranged on the transfer film, the cutting line penetrates from one side of the transfer film to the other side of the transfer film, a first film tearing handle is arranged on one side of the transfer film below the cutting line, and a second film tearing handle is arranged on one side of the transfer film above the cutting line.

As a preferred embodiment of the scratch-resistant electromagnetic shielding film provided by the utility model, the component insulating adhesive paper comprises an IC insulating adhesive paper and two component insulating adhesive papers.

As a preferable embodiment of the scratch-resistant electromagnetic shielding film provided by the utility model, the cutting line is a plurality of runway-shaped through holes sequentially arranged from left to right.

As a preferred embodiment of the scratch-resistant electromagnetic shielding film provided by the utility model, the first holes on the left side and the right side of the cutting line are semicircular holes.

As a preferred embodiment of the scratch-resistant electromagnetic shielding film provided by the utility model, the first film tearing handle and the second film tearing handle are both positioned at the edge of the transfer film and extend outwards.

As a preferred embodiment of the scratch-resistant electromagnetic shielding film provided by the utility model, the first film tearing handle is formed by a concave through hole formed on the transfer film.

As a preferable implementation mode of the scratch-resistant electromagnetic shielding film provided by the utility model, each corner of the concave-shaped through hole is provided with a rounding angle.

As a preferred embodiment of the scratch-resistant electromagnetic shielding film provided by the utility model, the concave-shaped through hole is positioned at the edge of the transfer film.

As a preferred embodiment of the scratch-resistant electromagnetic shielding film provided by the utility model, the waste material of the concave-shaped through hole remains on the transfer film.

The utility model provides a liquid crystal display screen, which comprises a lower substrate, an upper substrate and the scratch-resistant electromagnetic shielding film, wherein the upper substrate is arranged above the lower substrate, the lower substrate is longer than the upper substrate and extends outwards, a binding area is arranged on the upper surface of the lower substrate of the outwards extending part, an FPC (flexible printed circuit) is bound on the binding area, and the scratch-resistant electromagnetic shielding film is adhered on the FPC.

The utility model has the following beneficial effects:

Drawings

For a clearer description of the solution in the present application, a brief description will be given below of the drawings that are needed in the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an anti-scratch electromagnetic shielding film provided by the utility model.

Fig. 2 is a schematic structural diagram of the transfer film in fig. 1.

Fig. 3 is a schematic structural view of the front insulating adhesive paper in fig. 1.

Fig. 4 is a schematic view of the structure of the copper foil in fig. 1.

Fig. 5 is a schematic structural diagram of the component insulating tape of fig. 1.

Fig. 6 is a schematic diagram of a modified structure of the transfer film.

Fig. 7 is a schematic diagram of another improved structure of the transfer film.

Reference numerals illustrate:

transferring a film 1; a front insulating adhesive paper 2; copper foil 3; component insulating gummed paper 4; cutting the wire 11; a film tearing handle 5; a first film tearing handle 51; a second tear film handle 52;

IC insulating tape 41; element insulating tape 42;

a "concave" shaped through hole 53; waste 54; and an adhesive area 55.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The utility model provides an anti-scratch electromagnetic shielding film which is used for electromagnetic shielding of electronic components in a display module and comprises a transfer film, a front insulating adhesive tape, a copper foil and a component insulating adhesive tape which are sequentially overlapped from top to bottom, wherein a cutting line is arranged on the transfer film, the cutting line penetrates from one side of the transfer film to the other side of the transfer film, a first film tearing handle is arranged on one side of the transfer film below the cutting line, and a second film tearing handle is arranged on one side of the transfer film above the cutting line.

In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings. The present utility model is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Example 1

Referring to fig. 1 to 5, the scratch-resistant electromagnetic shielding film provided by the utility model is used for electromagnetic shielding of electronic components in a display module, and comprises a transfer film 1, a front insulating adhesive tape 2, a copper foil 3 and a component insulating adhesive tape 4, wherein the copper foil 3 is arranged above the component insulating adhesive tape 4, the front insulating adhesive tape 2 is arranged above the copper foil 3, the transfer film 1 is arranged above the front insulating adhesive tape 2, a cutting line 11 is arranged on the transfer film 1, the cutting line 11 penetrates from the left side of the transfer film 1 to the right side of the transfer film 1, two film tearing handles 5 are arranged on the transfer film 1, each film tearing handle 5 comprises a first film tearing handle 51 and a second film tearing handle 52, the first film tearing handle 51 is positioned below the cutting line 11, and the second film tearing handle 52 is positioned above the cutting line 11.

Further, the component insulating adhesive paper 4 includes an IC insulating adhesive paper 41 and an element insulating adhesive paper 42, the IC insulating adhesive paper 41 is disposed in the middle of the copper foil 3 and is located at an upper position, the position of the IC insulating adhesive paper 41 corresponds to the binding position of the IC of the display module, two element insulating adhesive papers 42 are provided, the position of the element insulating adhesive paper 42 corresponds to the binding position of the component of the display module, and the two element insulating adhesive papers 42 are located at two sides of the copper foil 3.

In this embodiment, the external dimensions of the front insulating adhesive paper 2 and the copper foil 3 are in one-to-one correspondence, and the external dimensions of the transfer film 1 are larger than those of the front insulating adhesive paper 2 and the copper foil 3.

Further, the cutting line 11 is a plurality of racetrack-type through holes sequentially arranged from left to right.

Further, the first holes on the left and right sides of the cutting line 11 are semicircular holes.

Further, the first and second film tearing handles 51 and 52 are located at the edge of the transfer film 1 and extend outwards to facilitate film tearing.

Example 2

Referring to fig. 6, as a further optimization scheme of embodiment 1, in this embodiment, some display modules are provided with other parts on the periphery, so that there is not enough space to provide the first film tearing handles 51 on two sides of the transfer film 1, if the first film tearing handles 51 are provided here, they may interfere with other parts, which affects the stability of the display module, so in this embodiment, the first film tearing handles 51 are formed by the "concave" through holes 53 formed on the transfer film 1. So that the first film tearing handle 51 cannot be placed due to the limitation of peripheral space, film tearing can be directly carried out at the concave through hole 53 without using tweezers for warping, and labor cost is saved; in addition, as the first film tearing handle 51 is arranged in the transfer film 1, the material of the first film tearing handle 51 at the outer side can be saved, and the material cost can be greatly reduced; more preferably, each corner of the concave through hole 53 is provided with a rounded corner, so that stress during film tearing is not concentrated at the corner, and the first film tearing handle 51 is prevented from being torn due to stress concentration, thereby further improving the operation efficiency.

Further, the concave-shaped through hole 53 is positioned at the edge of the transfer film 1, so that the release film can be easily torn off when the film is torn off, and the operation efficiency is improved.

Referring to fig. 7, further, the waste material 54 of the concave-shaped through hole 53 remains on the transfer film 1, and the waste material 54 is connected with the transfer film 1 before the transfer film 1 is torn off, so as to effectively prevent dust or other particles from entering the surface of the electromagnetic shielding film. Because the waste 54 is further connected to the transfer film 1, it is difficult to tear the first film tearing handle 51, and therefore, an adhesive area 55 may be disposed on the upper surface of the waste 54, and the adhesive area 55 is preferably, but not limited to, an adhesive disposed on the upper surface of the waste 54, when the transfer film 1 is torn, the waste 54 can be torn by the adhesive first, and then the transfer film 1 is torn by the first film tearing handle 51.

Example 3

As a further optimization scheme of embodiment 1, this embodiment provides a liquid crystal display, which includes a lower substrate, an upper substrate and the scratch-resistant electromagnetic shielding film according to any one of the above, wherein the upper substrate is disposed above the lower substrate, the lower substrate is longer than the upper substrate and extends outwards, a binding area is disposed on the upper surface of the lower substrate of the outwards extending portion, an FPC is bound on the binding area, and the scratch-resistant electromagnetic shielding film is adhered on the FPC.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the embodiments described above are only some embodiments of the present application, but not all embodiments, the preferred embodiments of the present application are given in the drawings, but not limiting the patent scope of the present application. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing, or equivalents may be substituted for elements thereof. All equivalent structures made by the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the protection scope of the application.

Claims

1. The utility model provides an electromagnetic shield membrane that prevents scraping, its electromagnetic shield who is arranged in the display module assembly electronic components, its characterized in that, it includes by last to down turn film, positive insulating adhesive tape, copper foil and the insulating adhesive tape of components and parts that the sequential stack set up, be provided with the cutting line on the turn film, the cutting line by one side of turning film runs through to the opposite side of turning film, be located below the cutting line one side of turning film is provided with first dyestripping handle, be located above the cutting line one side of turning film is provided with the second dyestripping handle.

2. The scratch-resistant electromagnetic shielding film of claim 1, wherein the component insulating tape comprises an IC insulating tape and two component insulating tapes.

3. The scratch-resistant electromagnetic shielding film according to claim 1, wherein the cut lines are a plurality of racetrack-type through holes sequentially arranged from left to right.

4. A scratch-resistant electromagnetic shielding film according to claim 3, wherein the first holes on the left and right sides of the cut line are semicircular holes.

5. The scratch resistant electromagnetic shielding film of claim 1, wherein the first and second film tearing handles are located at an edge of the transfer film and extend outward.

6. The scratch-resistant electromagnetic shielding film of claim 1, wherein the first film tearing handle is formed by a "concave" shaped through hole formed in the transfer film.

7. The scratch-resistant electromagnetic shielding film of claim 6, wherein each corner of the "concave" shaped through hole is provided with a rounded corner.

8. The scratch-resistant electromagnetic shielding film of claim 6, wherein the "concave" shaped through holes are located at edges of the transfer film.

9. The scratch-resistant electromagnetic shielding film of claim 6, wherein waste material of the "concave" shaped through holes remains on the transfer film.

10. A liquid crystal display screen, characterized in that it comprises a lower substrate, an upper substrate and the scratch-proof electromagnetic shielding film according to any one of claims 1-9, wherein the upper substrate is arranged above the lower substrate, the lower substrate is longer than the upper substrate and extends outwards, a binding area is arranged on the upper surface of the lower substrate of the outwards extending part, an FPC is bound on the binding area, and the scratch-proof electromagnetic shielding film is adhered on the FPC.