Curved screen mobile phone film

Abstract

The utility model relates to the technical field of mobile phone films, in particular to a curved screen mobile phone film. The mobile phone film comprises a functional layer, an EPU layer, a back glue layer, an upper release film and a lower release film, the functional layer is prepared by coating acryl glue on a base film made of a PET material and adding an additive, the functional layer is an anti-scraping functional layer, an anti-fingerprint functional layer or a self-repairing functional layer, the functional layer is embossed on the EPU layer, the functional layer and the EPU layer are combined, and the upper release film and the lower release film are bonded. The flexible characteristic of an EPU material is reserved, the problem that a traditional PET film and other hard film materials are not firmly pasted on a curved screen is solved, and the mobile phone film has the advantages of being free of warping when being attached to the curved screen, good in elasticity and capable of achieving self-repairing of scratches.

Description

Technical Field

[0001] The utility model relates to the field of mobile phone films, in particular to a curved screen mobile phone film. Background Art

[0002] Common mobile phone screens include flat screens and curved screens. Traditional mobile phone protective films use a three-layer structure: a hardened layer, a PET film, and a laminating adhesive. This structure is suitable for flat screen devices. However, curved screens, due to their curved edges, require a higher degree of softness. Using this three-layer structure can cause warping at the lamination edges. Although solutions such as heat-bendable films or post-UV curing (post-UV curing products must be stored away from light) have been developed on the market, problems still exist with curved screen protective films, such as loose adhesion, edge warping, and a limited shelf life. Therefore, the existing technology needs to be improved. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a curved screen mobile phone film that has a stable fit, no edge warping, and is scratch-resistant.

[0004] The technical solution adopted by the utility model to solve the problem is: a curved screen mobile phone film, comprising:

[0005] Functional layer, EPU layer, adhesive layer, upper release film and lower release film;

[0006] The upper release film is attached to the surface of the functional layer, the functional layer is printed on the EPU layer, the adhesive layer is coated on the bottom surface of the EPU layer, and the lower release film is attached to the bottom surface of the adhesive layer.

[0007] The functional layer is made of a base film of PET material coated with acrylic glue, the thickness of the functional layer is 3-50 μm, and the functional layer is an anti-scratch functional layer, an anti-fingerprint functional layer or a self-repairing functional layer.

[0008] By setting up a functional layer and combining it with the elasticity of the EPU layer, the problem of traditional PET film being a hard film material that carries the functional layer and cannot adhere firmly to curved screens is solved. This mobile phone film has the advantages of being able to fit curved screens without warping, having good elasticity, and being able to self-repair scratches.

[0009] As a further improvement of the above solution, the thickness of the EPU layer is 20-150 μm.

[0010] As a further improvement of the above solution, the thickness of the back adhesive layer is 10-100 μm.

[0011] As a further improvement of the above solution, the upper release film and the lower release film are both PET release films, and the thickness of the upper release film and the lower release film are both 38-125 μm.

[0012] The beneficial effects of the present invention are: by using the functional layer in combination with the soft properties of the EPU material, the problem of edge warping after the curved screen mobile phone film is attached is solved, and at the same time it has the advantages of anti-fingerprint, smooth sliding and self-repair of scratches. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further explained below with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a cross-sectional schematic diagram of a preferred embodiment of the present utility model.

[0015] In the figure: 1-EPU layer, 2-functional layer, 3-adhesive layer, 4-upper release film, 5-lower release film. DETAILED DESCRIPTION

[0016] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0018] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] Reference Figure 1 , a curved screen mobile phone film, in a preferred embodiment, comprising:

[0021] Functional layer 2, which is an anti-scratch functional layer, an anti-fingerprint functional layer, or a self-repairing functional layer. Functional layer 2 is made of a PET base film coated with acrylic glue and additives. The thickness of functional layer 2 is 3-50 μm.

[0022] The anti-scratch functional layer, anti-fingerprint functional layer or self-repairing functional layer is made of commercially available additives, preferably anti-fouling coating additives, UV anti-fingerprint additives, polyurethane self-repairing coatings, etc.

[0023] EPU layer 1, EPU layer 1 is embossed and bonded with functional layer 2, and then cured by UV light irradiation. The thickness of EPU layer 1 is 20-150 μm.

[0024] The adhesive layer 3 can be silicone or OCA optical adhesive. The adhesive layer 3 is coated on the bottom surface of the EPU layer 1. The thickness of the adhesive layer 3 is 10-100 μm.

[0025] The upper release film 4 and the lower release film 5 are both PET release films, and the thickness of the upper release film 4 and the lower release film 5 are both 38-125 μm. The upper release film 4 is attached to the surface of the functional layer 2, and the lower release film 5 is attached to the bottom surface of the adhesive layer 3.

[0026] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A curved screen mobile phone film, characterized in that: include: Functional layer (2), EPU layer (1), adhesive layer (3), upper release film (4) and lower release film (5); The upper release film (4) is attached to the surface of the functional layer (2), the functional layer (2) is embossed on the EPU layer (1), the adhesive layer (3) is coated on the bottom surface of the EPU layer (1), and the lower release film (5) is attached to the bottom surface of the adhesive layer (3); The functional layer (2) is made of a PET base film coated with acrylic glue, the thickness of the functional layer (2) is 3-50 μm, and the functional layer (2) is an anti-scratch functional layer, an anti-fingerprint functional layer or a self-repairing functional layer.

2. The curved screen mobile phone film according to claim 1, characterized in that: The thickness of the EPU layer (1) is 20-150 μm.

3. The curved screen mobile phone film according to claim 1, characterized in that: The thickness of the back adhesive layer (3) is 10-100 μm.

4. The curved screen mobile phone film according to claim 1, characterized in that: The upper release film (4) and the lower release film (5) are both PET release films, and the thickness of the upper release film (4) and the lower release film (5) are both 38-125 μm.

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