High-viscosity optical film

Abstract

The utility model discloses a high viscosity optical film which comprises a fabric base layer, a high viscosity adhesive layer and a release layer, the high viscosity adhesive layer is arranged below the fabric base layer, the high viscosity adhesive layer is composed of an organic silicon adhesive, the organic silicon adhesive contains tackifying resin, and the release layer is arranged below the fabric base layer. The tackifying resin is one or more of terpene resin, petroleum resin and rosin resin, and the functional combination layer is arranged above the fabric base layer. The high-viscosity optical film has good high transparency, high wear resistance and high impact strength, the high-viscosity adhesive layer is an organic silica adhesive containing tackifying resin, has high viscosity and is combined with the function combination layer, and the function combination layer is formed by combining an anti-reflection layer, an anti-fingerprint layer and an anti-ultraviolet layer. The whole anti-reflection, anti-fingerprint and anti-ultraviolet effects of the film are improved, the optical performance is excellent, the whole structure is simple, the cost is low, and the film is suitable for large-scale application.

Description

Technical Field

[0001] This utility model relates to the field of optical thin film technology, specifically a high-viscosity optical thin film. Background Technology

[0002] In fields such as display, lighting, and optical communication, the application of optical thin films is becoming increasingly widespread. These scenarios not only require thin films to have excellent optical properties such as high light transmittance and low reflectance, but also place extremely high demands on their adhesion performance.

[0003] As disclosed in CN207096486U, an optical thin film includes a central layer with symmetrically arranged connecting layers on both sides. A protective layer is connected to the side of the connecting layer away from the central layer, and a connecting block is provided on one side of the protective layer. A snap-fit ​​groove for snapping the connecting block is provided on one side of the connecting layer. An insertion port is provided in the central layer, and sleeves are inserted into the insertion ports at both ends. Insert rods are inserted into the sleeves, and first clips are connected to both sides of the insert rods. One end of the first clip passes through the sleeve and snaps onto the inner wall of the insertion port. A connecting rod is connected to one end of the insert rod, and one end of the connecting rod passes through one end of the sleeve. A locking rod is connected to the end of the connecting rod located at the sleeve. The removal of the insert rods in this invention also allows the central layer to be opened, facilitating quick inspection by the user and providing a fast and efficient optical thin film for the user.

[0004] However, existing technologies suffer from problems such as low viscosity of optical thin films, which makes it difficult to meet the needs of special scenarios, poor optical performance, and complex and costly manufacturing processes, which limit large-scale applications. For example, the comparative patents listed above have this problem.

[0005] To address these issues, we propose a high-viscosity optical thin film. Utility Model Content

[0006] The purpose of this invention is to provide a high-viscosity optical thin film to solve the problems mentioned in the background art, such as low viscosity, difficulty in meeting the needs of special scenarios, poor optical performance, and complex and costly preparation process, which limits large-scale application.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-viscosity optical film, comprising a fabric base layer, a high-viscosity adhesive layer, and a release layer;

[0008] Also includes:

[0009] The high-viscosity adhesive layer is disposed below the fabric base layer, and the high-viscosity adhesive layer is composed of silicone adhesive, and the silicone adhesive contains tackifying resin, and the tackifying resin is one or more of terpene resin, petroleum resin, and rosin resin.

[0010] The functional combination layer is disposed above the fabric base layer, and the functional combination layer consists of an anti-reflective layer, an anti-fingerprint layer, and an anti-ultraviolet layer from bottom to top.

[0011] As a preferred technical solution of this utility model, the fabric base layer is a transparent polymer material layer, and the polymer material is one of polyethylene terephthalate, polycarbonate, and cyclic olefin polymer.

[0012] The above technical solution uses a transparent polymer material layer as the base layer of the fabric. The polymer material is one of polyethylene terephthalate, polycarbonate, or cyclic olefin polymer, which has excellent high transparency, high abrasion resistance, and high impact strength.

[0013] As a preferred embodiment of this invention, an antioxidant is added to the fabric base layer.

[0014] By adopting the above technical solution, adding antioxidants to the base layer of the fabric can enhance the antioxidant effect of the film.

[0015] As a preferred embodiment of this invention, the antioxidant is one or a combination of hindered phenols and phosphites.

[0016] By employing the above technical solution, and using one or a combination of hindered phenols and phosphites as antioxidants, the anti-aging effect is more prominent, and the colorfastness is excellent.

[0017] As a preferred embodiment of this invention, the anti-reflective layer is composed of multiple layers of silicon dioxide and titanium dioxide films with different refractive indices stacked alternately, the anti-fingerprint layer is a fluoropolymer coating, and the anti-ultraviolet layer is an acrylic coating with added ultraviolet absorbers.

[0018] By adopting the above technical solution, the anti-reflective layer is composed of multiple layers of silicon dioxide and titanium dioxide films with different refractive indices, the anti-fingerprint layer is a fluoropolymer coating, and the anti-ultraviolet layer is an acrylic coating with added ultraviolet absorbers, thereby improving the functionality and practicality of the film.

[0019] As a preferred embodiment of this invention, a release layer is provided below the high-viscosity adhesive layer, and the release layer is a silicone oil-coated polyethylene terephthalate film or a polyethylene film.

[0020] The above technical solution involves a release layer located beneath the high-viscosity adhesive layer. This release layer is a silicone-coated polyethylene terephthalate film or a polyethylene film, which protects the high-viscosity adhesive layer and makes it easy to peel off.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the high viscosity optical film has excellent high transparency, high wear resistance, and high impact strength. The high viscosity adhesive layer is an organic silicone adhesive containing tackifying resin, which has a very high viscosity. Combined with the setting of the functional combination layer, which is composed of an anti-reflection layer, an anti-fingerprint layer, and an anti-ultraviolet layer, the overall anti-reflection, anti-fingerprint, and anti-ultraviolet effects of the film are improved. The optical performance is excellent, and the overall structure is simple and the cost is low, making it suitable for large-scale applications.

[0022] 1. It contains a base material and an antioxidant. The base material is one of polyethylene terephthalate, polycarbonate, and cyclic olefin polymers, which has high transparency, abrasion resistance and impact resistance. The antioxidant added to the base material can improve the anti-aging effect and colorfastness of the film.

[0023] 2. It is equipped with a functional combination layer, which is composed of an anti-reflective layer, an anti-fingerprint layer and an anti-ultraviolet layer. Through the setting of the functional combination layer, the film has excellent anti-reflective, anti-fingerprint and anti-ultraviolet effects.

[0024] 3. It has a high-viscosity adhesive layer and a release layer. The release layer is located on the outside of the high-viscosity adhesive layer, and the high-viscosity adhesive layer is composed of silicone adhesive and has a very high viscosity. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a frontal sectional view of the present invention.

[0027] Figure 3 This is a schematic diagram of the explosion structure of the fabric base layer, functional combination layer and antioxidant of this utility model.

[0028] In the diagram: 1. Fabric base layer; 2. High-viscosity adhesive layer; 3. Functional combination layer; 4. Anti-reflective layer; 5. Anti-fingerprint layer; 6. Anti-UV layer; 7. Antioxidant; 8. Release layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-3 The present invention provides the following technical solution:

[0031] To address the problems of existing optical films having low viscosity, making it difficult to meet the needs of special scenarios, resulting in poor optical performance, and having complex and costly manufacturing processes that limit large-scale applications, this solution proposes a high-viscosity optical film comprising a fabric base layer 1, a high-viscosity adhesive layer 2, and a release layer 8. The high-viscosity adhesive layer 2 is disposed below the fabric base layer 1, and the functional combination layer 3 is disposed above the fabric base layer 1. The functional combination layer 3 consists of an anti-reflection layer 4, an anti-fingerprint layer 5, and an anti-ultraviolet layer 6, arranged from bottom to top.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the fabric base layer 1 is a transparent polymer material layer. The polymer material is one of polyethylene terephthalate, polycarbonate, and cyclic olefin polymers. Therefore, it needs to have high transparency, high abrasion resistance, and high impact strength. Antioxidant 7 is added to the fabric base layer 1. Antioxidant 7 is one or a combination of hindered phenols and phosphites. It has a prominent anti-aging effect and excellent colorfastness. At the same time, a high-viscosity adhesive layer 2 is provided at the lower end of the fabric base layer 1. A release layer 8 is provided below the high-viscosity adhesive layer 2. The release layer 8 is a polyethylene terephthalate film or polyethylene film coated with silicone oil. It protects the high-viscosity adhesive layer 2 and makes it easy to peel off and use. The high-viscosity adhesive layer 2 is composed of silicone adhesive and contains tackifying resin. The tackifying resin is one or more of terpene resin, petroleum resin, and rosin resin, which has a high viscosity.

[0033] A functional combination layer 3 is provided above the fabric base layer 1. The functional combination layer 3 is composed of an anti-reflective layer 4, an anti-fingerprint layer 5, and an anti-ultraviolet layer 6. The anti-reflective layer 4 is composed of multiple layers of silicon dioxide and titanium dioxide films with different refractive indices, which are alternately stacked. The anti-fingerprint layer 5 is a fluoropolymer coating, and the anti-ultraviolet layer 6 is an acrylic coating with added ultraviolet absorbers. By setting the anti-reflective layer 4, the anti-fingerprint layer 5, and the anti-ultraviolet layer 6, the anti-reflective, anti-fingerprint, and anti-ultraviolet capabilities of the film are improved.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-viscosity optical film, comprising a fabric base layer (1), a high-viscosity adhesive layer (2), and a release layer (8); Its features are, Also includes: The high-viscosity adhesive layer (2) is disposed below the fabric base layer (1), and the high-viscosity adhesive layer (2) is composed of silicone adhesive, and the silicone adhesive contains tackifying resin, and the tackifying resin is one or more of terpene resin, petroleum resin, and rosin resin. The functional combination layer (3) is disposed above the fabric base layer (1), and the functional combination layer (3) consists of an anti-reflective layer (4), an anti-fingerprint layer (5), and an anti-ultraviolet layer (6) from bottom to top.

2. The high-viscosity optical thin film according to claim 1, characterized in that: The fabric base layer (1) is a transparent polymer material layer, and the polymer material is one of polyethylene terephthalate, polycarbonate, and cyclic olefin polymer.

3. The high-viscosity optical thin film according to claim 1, characterized in that: Antioxidant (7) is added to the base layer (1) of the fabric.

4. The high-viscosity optical thin film according to claim 3, characterized in that: The antioxidant (7) is one or a combination of hindered phenols and phosphites.

5. The high-viscosity optical thin film according to claim 1, characterized in that: The anti-reflective layer (4) is composed of multiple layers of silicon dioxide and titanium oxide films with different refractive indices stacked alternately, the anti-fingerprint layer (5) is a fluoropolymer coating, and the anti-ultraviolet layer (6) is an acrylic coating with added ultraviolet absorbers.

6. The high-viscosity optical thin film according to claim 1, characterized in that: A release layer (8) is provided below the high-viscosity adhesive layer (2), and the release layer (8) is a polyethylene terephthalate film or a polyethylene film coated with silicone oil.

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