Optical composite film with good wear resistance

Abstract

The utility model discloses an optical composite film with good wear resistance, which comprises a composite film body, the composite film body is respectively provided with a prism film, an anti-aging film and a wear-resistant film from top to bottom, the anti-aging film is adhered to the bottom of the prism film, the wear-resistant film is adhered to the bottom of the anti-aging film, and the prism film is adhered to the bottom of the anti-aging film. The wear-resistant film comprises a first PET base film and a silicon dioxide base film. The utility model relates to the technical field of optical composite films. According to the optical composite film with excellent wear resistance, the first PET base film and the silicon dioxide base film are additionally arranged in the wear-resistant film, and the opposite surfaces of the first PET base film and the silicon dioxide base film are respectively coated with the organic silicon coating and the polyurethane coating, so that the wear-resistant film is used as the bottommost layer of the optical film, and the flexibility of the first PET base film can be promoted to be improved; and through the silicon dioxide base film and the polyurethane coating, the corrosion resistance and the wear resistance of the optical film are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical composite films, and particularly relates to an optical composite film with excellent wear resistance. Background Art

[0002] The optical film industry has thrived due to the development of liquid crystal panels. An optical composite film is to concentrate two or more optical functions on one film, and by stacking multiple films with different effects, the purpose of enhancing the optical effect is achieved. In the prior art, although the optical composite film can enhance the optical effect, inevitably, in the actual use process, there are still deficiencies, such as the lack of wear resistance, resulting in easy damage to the film, and the lack of anti-yellowing performance, resulting in easy oxidation of the film and the problem of local aging and yellowing. In order to avoid such problems, an optical composite film with excellent wear resistance is proposed to solve the existing problems. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides an optical composite film with excellent wear resistance, which solves the problems that the optical composite film has poor wear resistance, resulting in easy damage to the film, and the lack of anti-yellowing performance, resulting in easy oxidation of the film and the problem of local aging and yellowing.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: an optical composite film with excellent wear resistance, including a composite film body, the composite film body is respectively provided with a prism film, an anti-aging film and a wear-resistant film from top to bottom, the anti-aging film is adhered to the bottom of the prism film, the wear-resistant film is adhered to the bottom of the anti-aging film, the wear-resistant film includes a first PET base film and a silica-based film, a first high-temperature resistant transparent AB glue is filled between the first PET base film and the silica-based film, a silicone coating is coated on the top of the first PET base film, and a polyurethane coating is coated on the bottom of the silica-based film.

[0005] Preferably, the anti-aging film includes a second PET base film, two second PET base films are symmetrically arranged up and down, a second high-temperature resistant transparent AB glue is coated on the opposite sides of the two second PET base films, and an anti-yellowing layer is filled between the two second PET base films.

[0006] Preferably, the anti-yellowing layer is a phosphite antioxidant.

[0007] Preferably, a prism layer is provided on the top of the prism film. Advantageous Effects

[0008] The utility model provides an optical composite film with excellent wear resistance. Compared with the existing technology, it has the following beneficial effects: by adding a first PET base film and a silica base film to the wear-resistant film, and respectively coating a silicone coating and a polyurethane coating on the opposite sides of the first PET base film and the silica base film, the wear-resistant film, as the bottom layer of the optical film, can improve the flexibility of the first PET base film through the above measures, and improve the corrosion resistance and wear resistance of the optical film through the silica base film and the polyurethane coating;

[0009] Secondly, by setting a second PET base film, a second high-temperature resistant transparent AB glue and an anti-yellowing layer in the anti-aging film, the optical film body can improve the temperature resistance of the anti-aging film through the second high-temperature resistant transparent AB glue, extend the service life, and prevent the problem that the multi-layer film sheets in the composite film body are easily oxidized during long-term use, resulting in yellowing of the film sheets due to aging through the anti-yellowing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the external structure of the utility model;

[0011] Figure 2 is a schematic diagram of the structure of the wear-resistant film of the utility model;

[0012] Figure 3 is a schematic diagram of the structure of the anti-aging film of the utility model.

[0013] In the figure: 1. Composite film body; 2. Prism film; 3. Anti-aging film; 31. Second PET base film; 32. Second high-temperature resistant transparent AB glue; 33. Anti-yellowing layer; 5. Wear-resistant film; 51. First PET base film; 52. Silica base film; 53. Silicone coating; 54. Polyurethane coating; 55. First high-temperature resistant transparent AB glue; 6. Prism layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0015] Please refer to Figures 1-3, the present utility model provides a technical solution: an optical composite film with excellent wear resistance, including a composite film body 1. From top to bottom, the composite film body 1 is respectively provided with a prism film 2, an anti-aging film 3, and a wear-resistant film 5. The anti-aging film 3 is adhered to the bottom of the prism film 2, and the wear-resistant film 5 is adhered to the bottom of the anti-aging film 3. A prism layer 6 is provided on the top of the prism film 2. The prism layer 6 is composed of several prisms. A prism is a transparent object surrounded by planes that intersect pairwise but are not parallel to each other, used for splitting light or causing beam dispersion. A prism is a polyhedron made of a transparent material, used to turn light at a specific angle. A prism can not only shift light but also be used to adjust the direction of an image;

[0016] The wear-resistant film 5 includes a first PET base film 51 and a silica base film 52. The silica base film 52 is made of high-hardness silica and has super wear-resistant performance. A first high-temperature-resistant transparent AB glue 55 is filled between the first PET base film 51 and the silica base film 52. An organosilicon coating 53 is coated on the top of the first PET base film 51. The organosilicon coating 53 is formed by mixing and alkali-treating a fluorosiloxane polymer and an ultraviolet-curable resin and then coating. It has both good flexibility and can be fully combined with the matrix material through inorganic groups to improve the hardness of the base film. A polyurethane coating 54 is coated on the bottom of the silica base film 52. After curing, the polyurethane coating 54 has the advantages of temperature resistance, wear resistance, and corrosion resistance.

[0017] The anti-aging film 3 includes two second PET base films 31 that are symmetrically arranged up and down. On the opposite sides of the two second PET base films 31, a second high-temperature-resistant transparent AB glue 32 is coated. An anti-yellowing layer 33 is filled between the two second PET base films 31. The anti-yellowing layer 33 is a phosphite antioxidant. The phosphite antioxidant decomposes peroxides generated during the oxidation process to form stable non-active products, thereby delaying the oxidation process of polymer materials, extending the service life of products, inhibiting high-temperature yellowing, and improving the weather resistance and transparency of products.

Claims

1. An optical composite film with good wear resistance, comprising a composite film body (1), characterized in that: The composite film body (1) is provided with a prism film (2), an anti-aging film (3) and a wear-resistant film (5) from top to bottom, respectively; the anti-aging film (3) is bonded to the bottom of the prism film (2); the wear-resistant film (5) is bonded to the bottom of the anti-aging film (3); the wear-resistant film (5) comprises a first PET base film (51) and a silicon dioxide base film (52); a first high-temperature resistant transparent AB glue (55) is filled between the first PET base film (51) and the silicon dioxide base film (52); a silicone coating (53) is coated on the top of the first PET base film (51); and a polyurethane coating (54) is coated on the bottom of the silicon dioxide base film (52).

2. The optical composite film with good wear resistance according to claim 1, characterized in that: The anti-aging film (3) comprises a second PET base film (31), wherein two second PET base films (31) are symmetrically arranged in an upper and lower direction, and the two second PET base films (31) are coated with a second high-temperature resistant transparent AB glue (32) on opposite sides thereof, and an anti-yellowing layer (33) is filled between the two second PET base films (31).

3. The optical composite film with good wear resistance according to claim 2, characterized in that: The anti-yellowing layer (33) is a phosphite antioxidant.

4. The optical composite film with good wear resistance according to claim 1, characterized in that: A prism layer (6) is arranged on the top of the prism film (2).

Images