Easily-torn structure of backlight protective film

Abstract

The utility model relates to an easy-to-tear structure of a backlight protective film. The easy-to-tear structure of the backlight protective film comprises a bottom film, a first protective film and a second protective film, wherein the first protective film is arranged on the bottom film; a first adhesive layer, a second adhesive layer and a third adhesive layer are arranged on the second protective film, the first adhesive layer and the second adhesive layer are located on the two sides of the first protective film respectively, and the first protective film adheres to the third adhesive layer. According to the scheme provided by the invention, the problem that other backlight functional films are brought up when the protective film is torn can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to an easy-to-tear structure of a backlight protection film. Background Art

[0002] The backlight size of the current vehicle-mounted display module is relatively large, and the front protective film used for the large-size backlight is also correspondingly large.

[0003] In the related art, the backlight protective film is a PET film with adhesive on one side, and the entire adhesive surface is in contact with the backlight functional film. Due to the large adhesive area of ​​the adhesive surface, when the protective film is torn off with a tearing handle, the farther away from the tearing handle, the greater the adhesion of the protective film, resulting in the protective film pulling up other functional films of the backlight. Once the backlight functional film is pulled up, it will cause undesirable conditions such as deviation in rework assembly, which will easily lead to defective products. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a backlight protective film easy-to-tear structure, which can solve the problem of tearing off other functional films of the backlight when tearing off the protective film.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The first aspect of the present application provides a backlight protective film tearable structure, comprising: a base film; a first protective film, the first protective film is arranged on the base film; a second protective film, the second protective film is provided with a first adhesive layer, a second adhesive layer and a third adhesive layer, the first adhesive layer and the second adhesive layer are respectively located on both sides of the first protective film, and the first protective film is adhered to the third adhesive layer.

[0007] The surface area of ​​the first protection film is smaller than the surface area of ​​the second protection film.

[0008] It also includes a non-glue portion, which is arranged on the base film.

[0009] The width of the first adhesive layer is the same as the width of the second adhesive layer.

[0010] It also includes a tear handle, which is arranged on the second protective film.

[0011] The length of the base film is greater than the length of the first protective film.

[0012] The length of the base film is greater than the length of the second protective film.

[0013] The first protection film has a rectangular cross-sectional structure.

[0014] The second protection film has a rectangular cross-sectional structure.

[0015] The base film has a rectangular cross-sectional structure.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] By setting the first protective film on the lower side of the second protective film and bonding the first protective film to the third adhesive layer, only the first adhesive layer and the second adhesive layer are left sticky, thereby reducing the stickiness of the second protective film, avoiding the problem of pulling out other functional films of the backlight when tearing off the second protective film, and improving the yield rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 This is a schematic structural diagram of the easy-tear structure of the backlight protection film in one embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of another implementation of the easy-tear structure of the backlight protection film in one embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of another implementation manner of the easy-tear structure of the backlight protection film in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0023] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] 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, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In the related art, the backlight protective film is a PET film with adhesive on one side, and the entire adhesive surface is in contact with the backlight functional film. Due to the large adhesive area of ​​the adhesive surface, when the protective film is torn off with a tearing handle, the farther away from the tearing handle, the greater the adhesion of the protective film, resulting in the protective film pulling up other functional films of the backlight. Once the backlight functional film is pulled up, it will cause undesirable conditions such as deviation in rework assembly, which will easily lead to defective products.

[0026] In view of the above problems, the embodiments of the present application provide a backlight protective film with an easy-to-tear structure, which can solve the problem of tearing off other functional films of the backlight when tearing off the protective film.

[0027] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1 , Figure 2 and Figure 3 A backlight protective film tearable structure includes: a base film 100, a first protective film 200 and a second protective film 300, the first protective film 200 is arranged on the base film 100; the second protective film 300 is provided with a first adhesive layer 310, a second adhesive layer 320 and a third adhesive layer 330, the first adhesive layer 310 and the second adhesive layer 320 are respectively located on both sides of the first protective film 200, and the first protective film 200 is adhered to the third adhesive layer 330.

[0029] It should be noted that the cross-sectional structures of the first protective film 200, the second protective film 300 and the base film 100 are all rectangular, the first adhesive layer 310, the second adhesive layer 320 and the third adhesive layer 330 constitute the adhesive surface of the second protective film 300, the first protective film 200 is adhered to the third adhesive layer 330, and the surface area of ​​the first protective film 200 is the same as the surface area of ​​the third adhesive layer 330, and the first adhesive layer 310 and the second adhesive layer 320 are exposed on both sides of the first protective film 200. Then, in the process of lamination, the base film 100 is torn off, and the first adhesive layer 310 and the second adhesive layer 320 are used to adhere to the backlight. Through the above method, the first protective film 200 is arranged on the lower side of the second protective film 300, and the first protective film 200 is bonded to the third adhesive layer 330, leaving only the first adhesive layer 310 and the second adhesive layer 320 sticky, thereby reducing the stickiness of the second protective film 300, avoiding the problem of pulling up other functional films of the backlight when tearing off the second protective film 300, and improving the yield rate of the product.

[0030] It should also be noted that the first protective film 200 may be a PE film or a PET film, and the hardness may be a soft film or a hard film. The second protective film 300 is a PET film.

[0031] See also Figure 1 In one embodiment, the surface area of ​​the first protective film 200 is smaller than the surface area of ​​the second protective film 300 .

[0032] It should be noted that the purpose of the first protective film 200 is to reduce the viscosity of the second protective film 300 , so the surface area of ​​the first protective film 200 is smaller than the surface area of ​​the second protective film 300 .

[0033] See also Figure 1 In one embodiment, a backlight protection film tearable structure further includes a non-glue portion 400 , and the non-glue portion 400 is disposed on the base film 100 .

[0034] It should be noted that the non-adhesive portion 400 is a non-adhesive portion of the first protective film 200 and is used to face the viewing area.

[0035] See also Figure 2 and Figure 3 In one embodiment, the width of the first adhesive layer 310 is the same as the width of the second adhesive layer 320 .

[0036] It should be noted that the width of the first adhesive layer 310 and the second adhesive layer 320 is between 2 mm and 20 mm, and the specific width can be determined according to the size of the backlight.

[0037] See also Figure 2 and Figure 3In one embodiment, a backlight protective film tearable structure further includes a tear handle 500 , and the tear handle 500 is disposed on the second protective film 300 .

[0038] It should be noted that the tear handle 500 is provided to facilitate tearing off the first protective film 200 and the second protective film 300 .

[0039] See also Figure 1 In one embodiment, the length of the base film 100 is greater than the length of the first protective film 200. Specifically, the length of the base film 100 is greater than the length of the second protective film 300.

[0040] It should be noted that the base film 100 is used to protect the second protective film 300 and the first protective film 200 , so the length of the base film 100 needs to be longer.

[0041] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0042] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A backlight protective film tearable structure, characterized in that: include: Base film; a first protective film, wherein the first protective film is disposed on the base film; A second protective film, wherein a first adhesive layer, a second adhesive layer and a third adhesive layer are arranged on the second protective film, the first adhesive layer and the second adhesive layer are respectively located on both sides of the first protective film, and the first protective film is adhered to the third adhesive layer.

2. The tearable backlight protection film structure according to claim 1, characterized in that: The surface area of ​​the first protection film is smaller than the surface area of ​​the second protection film.

3. The tearable backlight protection film structure according to claim 1, characterized in that: It also includes a non-glue portion, which is arranged on the base film.

4. The tearable backlight protection film structure according to claim 1, characterized in that: The width of the first adhesive layer is the same as the width of the second adhesive layer.

5. The tearable structure of the backlight protection film according to claim 1, characterized in that: It also includes a tear handle, which is arranged on the second protective film.

6. The tearable structure of the backlight protection film according to claim 1, characterized in that: The length of the base film is greater than the length of the first protective film.

7. The tearable backlight protection film structure according to claim 1, characterized in that: The length of the base film is greater than the length of the second protective film.

8. The tearable backlight protection film structure according to claim 1, characterized in that: The first protection film has a rectangular cross-sectional structure.

9. The tearable backlight protection film structure according to claim 1, characterized in that: The second protection film has a rectangular cross-sectional structure.

10. The tearable structure of the backlight protection film according to claim 1, characterized in that: The base film has a rectangular cross-sectional structure.

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