Layered-structure high-light-transmittance protective film

Abstract

The invention discloses a layered-structure high-light-transmittance protective film, which comprises a substrate layer made of a transparent flexible material and providing basic support; the surface protection layer is located on the upper end face of the substrate layer and made of hydrophobic and oleophobic materials, and the surface of the surface protection layer is provided with a micron-sized particle structure so as to enhance the anti-skid performance and the anti-fingerprint effect; the replaceable functional layer is positioned between the substrate layer and the surface protection layer; the positions of the four corners of the base layer and the four corners of the surface protection layer are each provided with an extending protruding part, and a flexible gas storage piece is arranged between the extending protruding parts at the upper end and the lower end. According to the layered-structure high-transmittance protective film, the replaceable functional layer is arranged between the substrate layer and the surface protective layer, so that the flexibility and the practicability of the protective film are remarkably improved. A user can easily extrude the flexible gas storage piece only by pressing the extending convex parts at the four corners, so that the base layer, the surface protection layer and the middle functional layer are separated, and the required functional layer is quickly removed or replaced.

Description

Technical Field

[0001] The invention relates to a protective film, in particular to a highly light-transmitting protective film with a layered structure. Background Art

[0002] With the widespread use of smart electronic devices, especially the popularity of display screens such as smartphones and tablets, the demand for screen protective films is increasing. Traditional screen protective films are mainly used to prevent screen scratches and breakage, but as people's demand for screen protection functions gradually diversifies, the functional requirements of protective films are also increasing, such as anti-glare, anti-blue light, antibacterial, anti-fingerprint, anti-peeping and other properties. However, most of the existing protective films on the market only have a single function. Once a protective film with a different function is needed, the user can only tear off the old film and replace it with a new one, which is not only time-consuming and labor-intensive, but also causes material waste and environmental pollution. In addition, frequent replacement of protective films will also increase the economic burden on users.

[0003] In order to achieve multifunctionality, some protective film products have added a multi-layer design to their structure, trying to meet multiple needs at the same time. However, the multi-layer design is usually not removable, so users still need to replace the entire protective film when changing functions, which lacks flexibility and may increase the thickness of the product, affecting light transmittance and user experience. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a layered structure high light transmittance protective film, which provides a replaceable functional layer and sets the functional layer between the base layer and the surface protective layer, so that users can flexibly replace different functional layers according to their needs without having to replace the entire protective film structure. At the same time, the structure is provided with extended protrusions and flexible air storage parts at the four corners, so that the user only needs to simply press the extended protrusion to automatically separate the base layer and the surface protective layer from the functional layer, which greatly improves the convenience of using the protective film and prolongs the service life of the base layer and the surface protective layer.

[0005] The present invention is realized by the following technical scheme: a layered structure high light transmittance protective film, comprising:

[0006] The base layer is made of transparent flexible material and provides basic support;

[0007] The surface protection layer is located on the upper end surface of the base layer and is made of hydrophobic and oleophobic materials. The surface is provided with a micron-sized particle structure to enhance the anti-slip performance and anti-fingerprint effect;

[0008] A replaceable functional layer is located between the base layer and the surface protection layer;

[0009] An extended convex portion is formed at the four corners of the base layer and the surface protective layer, and a flexible air storage member is disposed between the extended convex portions at the upper and lower ends;

[0010] The base layer and the surface protection layer are both in contact with the upper and lower surfaces of the replaceable functional layer, and the upper end surface of the base layer and the lower end surface of the surface protection layer are both provided with a plurality of micro expansion cavities. By squeezing the extended protrusion and the flexible air storage component, the multiple micro expansion cavities are expanded to separate the replaceable functional layer from the base layer and the surface protection layer.

[0011] As a preferred technical solution, a gap cavity is formed between the base layer and the surface protection layer, and the gap cavity is used for installing a replaceable functional layer.

[0012] As a preferred technical solution, micro air channels are arranged in the surface protection layer and the base layer, and the flexible air storage member is connected to each micro expansion chamber through the micro air channel.

[0013] As a preferred technical solution, the flexible gas storage member is an elastic rubber member having a gas storage cavity inside, and the gas is squeezed into the micro expansion cavity by squeezing the flexible gas storage member.

[0014] As a preferred technical solution, the replaceable functional layer is one or more of an anti-blue light filter layer, an antibacterial protective layer, an anti-glare layer, a privacy and anti-peep layer, and a flexible buffer layer.

[0015] As a preferred technical solution, the micron-sized particle structure of the surface protection layer has a slight elastic deformation when pressed.

[0016] As a preferred technical solution, the base layer is made of polyethylene terephthalate.

[0017] As a preferred technical solution, the surface protection layer is a polyvinyl fluoride film layer.

[0018] As a preferred technical solution, the upper and lower surfaces of the flexible air storage member are respectively fixedly bonded to the extending protrusion.

[0019] The beneficial effects of the present invention are as follows: the layered structure high light transmittance protective film of the present invention significantly improves the flexibility and practicality of the protective film by providing a replaceable functional layer between the base layer and the surface protective layer. The user only needs to press the extended convex parts at the four corners to easily squeeze the flexible gas storage part, thereby separating the base layer, the surface protective layer and the intermediate functional layer, and quickly removing or replacing the required functional layer;

[0020] The present invention not only prolongs the service life of the base layer and the surface protective layer, reduces the need for repeated purchase of protective films, but also can flexibly adapt to the needs for protective functions in different scenarios, such as anti-blue light, antibacterial, anti-glare, and privacy protection. In addition, the present invention reduces material waste by reusing the base layer and the surface protective layer, meets environmental protection requirements, and reduces the user's replacement cost, thus achieving an efficient, economical and environmentally friendly protective film solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a partial enlarged view of the present invention. DETAILED DESCRIPTION

[0024] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0025] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0026] like Figure 1 and Figure 2 As shown, a layered structure high light transmittance protective film of the present invention comprises a base layer 2, a surface protection layer 1 and a replaceable functional layer 7. The base layer 2 is made of a transparent flexible material, has a certain degree of transparency and toughness, and can play a basic supporting role in the overall structure of the protective film;

[0027] The transparent flexible material is preferably polyethylene terephthalate (PET), which has good light transmittance and durability, and can provide appropriate support, so that the protective film has good stability and flexibility in daily use and is not easily damaged.

[0028] The surface protection layer 1 is located on the upper end surface of the base layer, and is made of hydrophobic and oleophobic materials, and the surface layer has a micron-level particle structure. The particle structure can significantly enhance the anti-slip performance and effectively improve the anti-fingerprint effect, making the sliding operation on the screen feel better, less likely to leave fingerprints and stains, and easy to clean. At the same time, the micron-level particle structure of the surface protection layer has a certain amount of small elastic deformation when pressed, which can bring a good tactile experience during operation.

[0029] In addition, the surface protection layer preferably uses a polyvinyl fluoride (PVDF) film layer because it has superior wear resistance, hydrophobicity, and oleophobicity, and can maintain the surface properties of the protective film for a long time, and its protective effect is not easily affected by wear.

[0030] A replaceable functional layer 7 is provided between the base layer 2 and the surface protection layer 1. The functional layer may be one or more of an anti-blue light filter layer, an antibacterial protection layer, an anti-glare layer, a privacy protection layer, and a flexible buffer layer according to different application requirements, so as to meet the diverse needs of users in different usage scenarios. The replaceable design of the functional layer enables users to quickly replace protective layers with different functions when needed without replacing the entire protective film structure, thereby improving the flexibility and durability of the product and reducing the waste of resources caused by frequent replacement of the protective film.

[0031] The layered structural protective film has extended protrusions formed at the four corner positions of the base layer and the surface protective layer, and the extended protrusions include first extended protrusions 3 arranged at the four corner positions of the surface protective layer and second extended protrusions 4 arranged at the four corner positions of the base layer. The structural design of these extended protrusions not only facilitates users to identify the operable area, but also flexible air storage parts 5 are arranged between the extended protrusions at the upper and lower ends.

[0032] The flexible gas storage part 5 is preferably an elastic rubber part, which has a gas storage cavity inside, which can produce elastic deformation and store gas under the action of external force. The flexible gas storage part is connected to multiple micro expansion chambers through micro air path channels arranged in the base layer and the surface protection layer. When the user presses the extended convex part, the flexible gas storage part is squeezed, and the gas is quickly squeezed out and transported to the micro expansion chamber 6 through the micro air path channel. As the gas in the expansion chamber is injected, the expansion chamber gradually expands, thereby pushing the base layer and the surface protection layer to separate from the replaceable functional layer in the middle, so that the functional layer can be quickly taken out or replaced.

[0033] In order to further enhance the stability of the structure, the upper and lower surfaces of the flexible air storage component are fixedly bonded to the extended protrusion respectively. This not only ensures the effective position fixation of the flexible air storage component, but also prevents the performance of the protective film structure from being degraded due to loosening or displacement during use.

[0034] The layered structure high light transmittance protective film of the present invention significantly improves the flexibility and practicality of the protective film by providing a replaceable functional layer between the base layer and the surface protective layer. The user only needs to press the extended protrusions at the four corners to easily squeeze the flexible gas storage member, thereby separating the base layer, the surface protective layer and the intermediate functional layer, and quickly removing or replacing the required functional layer;

[0035] This convenient replacement method not only extends the service life of the base layer and the surface protective layer, reduces the need to repeatedly purchase protective films, but also can flexibly adapt to the needs for protective functions in different scenarios, such as anti-blue light, antibacterial, anti-glare, and privacy protection. In addition, the present invention reduces material waste by reusing the base layer and the surface protective layer, meets environmental protection requirements, and reduces the user's replacement cost, thus achieving an efficient, economical and environmentally friendly protective film solution.

[0036] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A layered structure high light transmittance protective film, characterized in that: include: The base layer is made of transparent flexible material and provides basic support; The surface protection layer is located on the upper end surface of the base layer and is made of hydrophobic and oleophobic materials. The surface is provided with a micron-sized particle structure to enhance the anti-slip performance and anti-fingerprint effect; A replaceable functional layer is located between the base layer and the surface protection layer; An extended convex portion is formed at the four corners of the base layer and the surface protective layer, and a flexible air storage member is disposed between the extended convex portions at the upper and lower ends; The base layer and the surface protection layer are both in contact with the upper and lower surfaces of the replaceable functional layer, and the upper end surface of the base layer and the lower end surface of the surface protection layer are both provided with a plurality of micro expansion cavities. By squeezing the extended protrusion and the flexible air storage component, the multiple micro expansion cavities are expanded to separate the replaceable functional layer from the base layer and the surface protection layer.

2. The layered structure high light transmittance protective film according to claim 1, characterized in that: A gap cavity is formed between the base layer and the surface protection layer, and the gap cavity is used for installing a replaceable functional layer.

3. The layered structure high light transmittance protective film according to claim 1, characterized in that: Micro air passages are arranged in the surface protection layer and the base layer, and the flexible air storage member is communicated with each micro expansion chamber through the micro air passages.

4. The layered structure high light transmittance protective film according to claim 1, characterized in that: The flexible gas storage member is an elastic rubber member having a gas storage cavity inside. The gas is squeezed into the micro expansion cavity by squeezing the flexible gas storage member.

5. The layered structure high light transmittance protective film according to claim 1, characterized in that: The replaceable functional layer is one or more of an anti-blue light filter layer, an antibacterial protective layer, an anti-glare layer, a privacy and anti-peep layer, and a flexible buffer layer.

6. The layered structure high light transmittance protective film according to claim 1, characterized in that: The micron-sized particle structure of the surface protection layer has a slight elastic deformation when pressed.

7. The layered structure high light transmittance protective film according to claim 1, characterized in that: The base layer is made of polyethylene terephthalate.

8. The layered structure high light transmittance protective film according to claim 1, characterized in that: The surface protection layer is a polyvinyl fluoride film layer.

9. The layered structure high light transmittance protective film according to claim 1, characterized in that: The upper and lower surfaces of the flexible air storage member are respectively fixedly bonded to the extending protrusions.

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