Protective film structure with semi-punched release film

By adopting the design of a semi-cut release film in the protective film structure of the liquid crystal display module, the combination of the inner release film and the outer release film is used to solve the problem of leaving watermark marks during long-term use, and the production cost and material waste are reduced.

CN222781558UActive Publication Date: 2025-04-22TRULY OPTO ELECTRONICS
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Patent Information

Application Number
CN202421514776.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-04-22
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

During the use of existing liquid crystal display modules (LCM), since the protective film with glue on the whole side is prone to leave watermark marks when used for a long time or under specific environmental conditions, it affects the display effect and may have a potential impact on the life of the LCM. At the same time, the double-layer protective film structure commonly adopted in the industry increases production costs and material waste.

Method used

A protective film structure with a half-cut release film is adopted, which includes an inner release film and an outer release film. A half-cut tangent line is arranged between the outer release film and the inner release film. The outer release film is tear off when bonded, so that the inner release film alone protects the viewing area of ​​the liquid crystal display module.

Benefits of technology

By using a combination of a protective film and a release film, the original three-layer film structure is replaced, effectively reducing the use of materials, reducing production costs, and reducing material waste.

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Abstract

The embodiment of the utility model belongs to the technical field of protective films. The utility model further relates to a protective film structure with the semi-punching release film, the protective film structure comprises a protective film main body, an inner release film and an outer release film located on the outer side of the inner release film are arranged on the protective film main body, a semi-punching line is arranged between the outer release film and the inner release film, and the semi-punching line is used for tearing off the outer release film when the protective film main body is used. According to the protective film, the inner release film and the outer release film are arranged, and the outer release film is torn off when the protective film main body is attached for use, so that the inner release film independently protects the visual area of the liquid crystal display module, and the visual area of the liquid crystal display module has no viscous effect; the inner release film and the outer release film are formed by arranging a release film in a semi-punching line punching mode, namely, the protection film and the release film are combined to replace an original three-layer film structure, the use amount of materials is effectively reduced, and the production cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of protective films, and more specifically to a protective film structure with a semi-punched release film. Background Art

[0002] Liquid crystal display module (LCM) is an indispensable part of modern electronic devices. Its display effect directly affects the user experience. In the production process of LCM, the selection of polarizer is crucial, especially the upper polarizer, whose optical properties directly affect the display performance of LCM. When a smooth upper polarizer is used, although it can bring better display effect, it will also bring a tricky problem: if the viewing area of ​​LCM is directly covered with a protective film with a whole surface of glue, this protective film is easy to leave watermark-like marks in the viewing area of ​​LCM after long-term use or under specific environmental conditions. These watermark marks not only affect the display effect of LCM, but also may have a potential impact on the life of LCM.

[0003] In order to solve this problem, the solution currently generally adopted in the industry is to use a layer of protective film with adhesive on the entire surface and a layer of non-adhesive protective film for lamination. Together with the original release film, a total of three layers of film are required. This solution directly contacts the LCM viewing area with the non-adhesive protective film, thereby avoiding the influence of glue on the LCM viewing area, thereby solving the problem of watermark marks. However, this double-layer protective film structure not only increases the production cost of LCM, but also has the problem of material waste during production and use. From the perspective of production cost, the double-layer protective film structure requires the use of two independent protective films, which increases the procurement cost of raw materials. At the same time, in the process of protective film lamination, additional lamination equipment and processes are required, which further increases the production cost. Secondly, from the perspective of material waste, the double-layer protective film structure is prone to problems such as poor alignment or lamination bubbles during the lamination process, resulting in the scrapping of the protective film. In addition, during the use of LCM, users may need to frequently replace the protective film, and the non-adhesive protective film in the double-layer protective film structure is often damaged due to contact with the LCM viewing area and cannot be reused, resulting in material waste. Therefore, we have made improvements on this and proposed a protective film structure with a semi-punched release film. Utility Model Content

[0004] The technical problem to be solved by the embodiment of the utility model is to achieve the effect of non-stickiness of the visual area protective film by sticking two protective films together, which has the problem of wasting materials.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The invention relates to a protective film structure with a semi-punched release film, comprising: a protective film body, wherein an inner release film and an outer release film located outside the inner release film are arranged on the protective film body, and a semi-punched cutting line is arranged between the outer release film and the inner release film, and the semi-punched cutting line is used to tear off the outer release film when the protective film body is in use. The present invention provides an inner release film and an outer release film, and the outer release film is torn off when the protective film body is in use, so that the inner release film alone protects the viewing area of ​​the liquid crystal display module, and the viewing area of ​​the liquid crystal display module has no sticky effect. The inner release film and the outer release film are arranged by punching a semi-punched cutting line on a release film, that is, the present invention replaces the original three-layer film structure by using a combination of a protective film and a release film, effectively reducing the amount of material used and reducing the production cost. When in use, only the outer release film needs to be torn off and the inner release film needs to be retained, which is convenient for operation and further reduces the waste of materials.

[0007] As an improved manner of the present invention, the position of the inner release film corresponds to the viewing area position of the liquid crystal display module, and the position of the outer release film corresponds to the non-viewing area position of the liquid crystal display module.

[0008] As an improved method of the utility model, the outer release film is used to be torn off when the protective film body is attached, so as to achieve the independent covering of the viewing area of ​​the liquid crystal display module by the inner release film.

[0009] As an improved manner of the utility model, a first tearing handle is provided on one side of the protective film body, and the first tearing handle and the protective film body are integrally provided.

[0010] As an improved manner of the present invention, the first tear-off handle is colored.

[0011] As an improved manner of the utility model, an extension handle is provided on one side of the inner release film, and one end of the extension handle passes through the outer release film.

[0012] As an improved manner of the present invention, one end of the extension handle away from the inner release film is in contact with the first tearing handle.

[0013] As an improved manner of the utility model, a second tearing handle is fixedly connected to one side of the outer release film, and the second tearing handle is used to assist in tearing off the outer release film.

[0014] As an improved manner of the present invention, the second tear-off handle is also colored, and the color of the second tear-off handle is two different colors from that of the first tear-off handle.

[0015] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0016] In order to solve the problem of material waste in the prior art of laminating two protective films together to achieve the non-sticky effect of the viewing area protective film, the present application provides an inner release film and an outer release film. The outer release film is torn off when the protective film body is laminating for use, so that the inner release film alone protects the viewing area of ​​the liquid crystal display module, and the viewing area of ​​the liquid crystal display module has a non-sticky effect. The inner and outer release films are formed by punching a half-punching line on a release film. That is, the present application replaces the original three-layer film structure by using a combination of a protective film and a release film, effectively reducing the amount of material used and reducing production costs. When in use, only the outer release film needs to be torn off and the inner release film needs to be retained, which is convenient for operation and further reduces material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a protective film structure with a semi-punched release film provided in the present application;

[0018] Figure 2 A schematic structural diagram of a protective film body having a protective film structure with a semi-punched release film provided in the present application;

[0019] Figure 3 A schematic diagram of the structure of the protective film structure with a half-punched release film provided in the present application after the outer release film is torn off;

[0020] Figure 4 A schematic structural diagram of an extended handle having a protective film structure with a semi-punched release film provided in the present application;

[0021] Figure 5 A schematic diagram of the structure of the tear-off handle of the protective film structure with a semi-punched release film provided in the present application

[0022] Indicated in the figure:

[0023] 1. Protective film body; 2. Inner release film; 3. Outer release film; 4. Half-punching line; 5. First tear-off handle; 6. Extension handle; 7. Second tear-off handle. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] As described in the background art, if a protective film with adhesive on the entire surface is directly covered on the viewing area of ​​the LCM, the protective film is likely to leave watermark-like marks in the viewing area of ​​the LCM after long-term use or under certain environmental conditions. These watermark marks not only affect the display effect of the LCM, but may also have a potential impact on the life of the LCM.

[0026] In order to solve this problem, the solution currently generally adopted in the industry is to use a layer of protective film with adhesive on the entire surface and a layer of non-adhesive protective film for lamination. Together with the original release film, a total of three layers of film are required. This solution directly contacts the LCM viewing area with the non-adhesive protective film, thereby avoiding the influence of glue on the LCM viewing area, thereby solving the problem of watermark marks. However, this double-layer protective film structure not only increases the production cost of LCM, but also has the problem of material waste during production and use. From the perspective of production cost, the double-layer protective film structure requires the use of two independent protective films, which increases the procurement cost of raw materials. At the same time, in the process of protective film lamination, additional lamination equipment and processes are required, which further increases the production cost. Secondly, from the perspective of material waste, the double-layer protective film structure is prone to problems such as poor alignment or lamination bubbles during the lamination process, resulting in the scrapping of the protective film. In addition, during the use of LCM, users may need to frequently replace the protective film, and the non-adhesive protective film in the double-layer protective film structure is often damaged due to contact with the LCM viewing area and cannot be reused, resulting in material waste.

[0027] In order to solve this technical problem, the utility model provides a protective film structure with a semi-punched release film, which is applied to the protection of a liquid crystal display module.

[0028] Specifically, please refer to Figure 1-Figure 3 The protective film structure with a semi-punched release film specifically includes:

[0029] The protective film body 1 is provided with an inner release film 2 and an outer release film 3 located outside the inner release film 2, and a half-punching line 4 is provided between the outer release film 3 and the inner release film 2, and the half-punching line 4 is used to tear off the outer release film 3 when the protective film body 1 is used.

[0030] The utility model provides a protective film structure with a half-punched release film. The utility model provides an inner release film 2 and an outer release film 3. The outer release film 3 is torn off when the protective film body 1 is used in affixed manner, so that the inner release film 2 alone protects the viewing area of ​​the liquid crystal display module, and the viewing area of ​​the liquid crystal display module has no sticky effect. The inner release film 2 and the outer release film 3 are formed by a release film by punching a half-punched line 4. That is, the utility model replaces the original three-layer film structure by using a combination of a protective film and a release film, which effectively reduces the amount of material used and reduces the production cost. When in use, it is only necessary to tear off the outer release film 3 and retain the inner release film 2, which is convenient for operation and further reduces the waste of materials.

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] 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.

[0033] 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.

[0034] Embodiment 1 of the protective film structure of the utility model having a semi-punched release film

[0035] Please refer to Figure 1-Figure 3The protective film structure with a semi-punched release film of the utility model comprises: a protective film body 1, an inner release film 2 and an outer release film 3 located on the outer side of the inner release film 2, a semi-punched line 4 is arranged between the outer release film 3 and the inner release film 2, and the semi-punched line 4 is used to tear off the outer release film 3 when the protective film body 1 is in use. The inner release film 2 and the outer release film 3 are arranged, and the outer release film 3 is torn off when the protective film body 1 is in use, so that the inner release film 2 alone protects the viewing area of ​​the liquid crystal display module, and the viewing area of ​​the liquid crystal display module has no sticky effect, and the inner release film 2 and the outer release film 3 are formed by a release film by punching the semi-punched line 4, that is, the present application replaces the original three-layer film structure by using a combination of a protective film and a release film, effectively reducing the use of materials and reducing the production cost; when in use, only the outer release film 3 needs to be torn off and the inner release film 2 is retained, which is convenient for operation and further reduces the waste of materials.

[0036] Further, such as Figure 1-Figure 2 As shown, the position of the inner release film 2 corresponds to the viewing area position of the liquid crystal display module, and the position of the outer release film 3 corresponds to the non-viewing area position of the liquid crystal display module, so that after tearing off the outer release film 3 during use, the protective film body 1 can be pasted to the non-viewing area position of the liquid crystal display module, and the setting of the inner release film 2 can achieve the isolation of the protective film body 1 from the viewing area position of the liquid crystal display module to avoid the protective film body 1 from being glued to the viewing area position of the liquid crystal display module.

[0037] Further, such as Figure 3 As shown, the outer release film 3 is used to be torn off when the protective film body 1 is attached, so that the inner release film 2 can cover the viewing area of ​​the liquid crystal display module alone.

[0038] Further, such as Figure 1 As shown, a first tear-off handle 5 is provided on one side of the protective film body 1 , and the first tear-off handle 5 and the protective film body 1 are integrated together. This arrangement can prevent the first tear-off handle 5 from falling off and also saves the material of the first tear-off handle 5 .

[0039] Furthermore, the first tear-off handle 5 is colored, so that it is convenient for the staff to distinguish and confirm the position of the first tear-off handle 5 .

[0040] Embodiment 2 of the protective film structure of the utility model having a semi-punched release film

[0041] The utility model has a protective film structure with a semi-punched release film, further, such as Figure 4 As shown, an extension handle 6 is provided on one side of the inner release film 2 , and one end of the extension handle 6 passes through the outer release film 3 .

[0042] Further, such as Figure 4As shown, the end of the extension handle 6 away from the inner release film 2 is in contact with the first tear-off handle 5. This arrangement allows the operator to limit the inner release film 2 by pressing his hand between the first tear-off handle 5 and the extension handle 6 during the process of tearing off the outer release film 3, thereby reducing the situation where the inner release film 2 is lifted up during the process of tearing off the outer release film 3.

[0043] Embodiment 3 of the protective film structure with a semi-punched release film of the utility model

[0044] The utility model has a protective film structure with a semi-punched release film, further, such as Figure 5 As shown, a second tearing handle 7 is fixedly connected to one side of the outer release film 3 . The second tearing handle 7 is used to assist in tearing off the outer release film 3 . The second tearing handle 7 can be easily used to tear off the outer release film 3 .

[0045] Furthermore, the second tear-off handle 7 is also colored, and the color of the second tear-off handle 7 is different from that of the first tear-off handle 5. The second tear-off handle 7 and the first tear-off handle 5 are marked with two different colors, which makes it easy for the staff to distinguish them.

[0046] When in use, first tear off the outer release film 3, and then stick the protective film body 1 to the non-viewing area position of the liquid crystal display module. At this time, the position of the inner release film 2 corresponds to the viewing area position of the liquid crystal display module. The inner release film 2 can isolate the protective film body 1 from the viewing area position of the liquid crystal display module to avoid the protective film body 1 from sticking to the viewing area position of the liquid crystal display module.

[0047] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model 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 utility model more thorough and comprehensive. Although the utility model 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 utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A protective film structure having a semi-punched release film, characterized in that: include: A protective film body (1), wherein the protective film body (1) is provided with an inner release film (2) and an outer release film (3) located outside the inner release film (2), and a half-punching line (4) is provided between the outer release film (3) and the inner release film (2), and the half-punching line (4) is used to tear off the outer release film (3) when the protective film body (1) is in use.

2. The protective film structure with a semi-punched release film according to claim 1, characterized in that: The position of the inner release film (2) corresponds to the viewing area position of the liquid crystal display module, and the position of the outer release film (3) corresponds to the non-viewing area position of the liquid crystal display module.

3. The protective film structure with a semi-punched release film according to claim 1, characterized in that: The outer release film (3) is used to be torn off when the protective film body (1) is attached, so as to achieve independent coverage of the viewing area of ​​the liquid crystal display module by the inner release film (2).

4. The protective film structure with a semi-punched release film according to claim 1, characterized in that: A first tearing handle (5) is provided on one side of the protective film body (1), and the first tearing handle (5) and the protective film body (1) are integrally arranged.

5. The protective film structure with a semi-punched release film according to claim 4, characterized in that: The first tear-off handle (5) is colored.

6. The protective film structure with a semi-punched release film according to claim 1, characterized in that: An extension handle (6) is provided on one side of the inner release film (2), and one end of the extension handle (6) passes through the outer release film (3).

7. The protective film structure with a semi-punched release film according to claim 6, characterized in that: One end of the extension handle (6) away from the inner release film (2) is in contact with the first tearing handle (5).

8. The protective film structure with a semi-punched release film according to claim 5, characterized in that: A second tearing handle (7) is fixedly connected to one side of the outer release film (3), and the second tearing handle (7) is used to assist in tearing off the outer release film (3).

9. The protective film structure with a semi-punched release film according to claim 8, characterized in that: The second tear-off handle (7) is also colored, and the color of the second tear-off handle (7) is two different colors from the color of the first tear-off handle (5).