Multi-angle peep-proof film

Abstract

The utility model discloses a multi-angle peep-proof film which comprises a hardened layer, a base material layer a, an OCA (Optical Clear Adhesive) layer, a peep-proof layer, a base material layer b, a pressure-sensitive adhesive layer and a release film layer which are sequentially attached from top to bottom, a hollow area defined by the transverse shading strips and the longitudinal shading strips forms a light-transmitting area, the cross section contour of the transverse shading strips is triangular, and the cross section contour of the longitudinal shading strips is square, namely inverted triangle filling is adopted in the transverse direction at intervals, strip-shaped filling is adopted in the longitudinal direction at intervals, and therefore the three-face peep-proof effect is achieved. According to the peep-proof film, only one surface is reserved as a user visible area, so that the peep-proof film is good in user privacy protection and strong in practicability, can well make up the defects of the peep-proof film on the market, can simultaneously maintain structures such as relatively high transmittance and a comprehensive hardened layer, is good in wear-resistant effect and strong in practicability, and is beneficial to wide popularization and application.

Description

Technical Field

[0001] This utility model relates to the field of screen protector technology, and in particular to a multi-angle privacy film. Background Technology

[0002] With the development of technology and the improvement of people's living standards, electronic products have become an indispensable part of people's daily lives and work. However, while enjoying the convenience brought by electronic products, people also face some problems, one of the most prominent being privacy protection. When using electronic products in public places, people often need to prevent others from peeking at their screen content to protect their privacy and business secrets. Privacy screen protectors have emerged to address this need.

[0003] For example, publication number "CN114755748A," entitled "An Anti-Spy Structure, Display Screen, and Anti-Spy Film," discloses an anti-spy structure comprising multiple light-transmitting units and multiple light-blocking units. The light-transmitting units and light-blocking units are arranged at intervals. Each light-blocking unit has a light-transmitting portion inclined towards a first side. The anti-spy structure has a first viewing angle on the first side and a second viewing angle on a second side. The first side and the second side are opposite each other, and the first viewing angle is larger than the second viewing angle. The light-transmitting portion is located at the top of the light-blocking unit, and its cross-section is triangular. By creating an inclined light-transmitting portion on the light-blocking unit, it simultaneously satisfies the requirements for frontal visibility and lateral viewing. However, it lacks left and right anti-spy effects, and privacy leaks can still occur during use. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a multi-angle privacy film with a reasonable structural design and good privacy protection effect.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A multi-angle privacy film includes a privacy layer, wherein the privacy layer is provided with a plurality of crisscrossing horizontal light-blocking strips and vertical light-blocking strips, and the hollow area formed between the horizontal light-blocking strips and the vertical light-blocking strips forms a light-transmitting area. The cross-sectional profile of the horizontal light-blocking strips is triangular, and the cross-sectional profile of the vertical light-blocking strips is square.

[0007] As a preferred embodiment of this utility model, it further includes a substrate layer a, a substrate layer b, a hardening layer, an OCA adhesive layer, a pressure-sensitive adhesive layer, and a release film layer, wherein the hardening layer, substrate layer a, OCA adhesive layer, privacy shield layer, substrate layer b, pressure-sensitive adhesive layer, and release film layer are sequentially bonded in a top-to-bottom order.

[0008] As a preferred embodiment of this utility model, the hardened layer is a polysiloxane coating or a polyfluorosiloxane coating with a thickness of 1 to 10 micrometers, which can reduce surface tension and has hydrophobic, oil-repellent, and wear-resistant effects.

[0009] As a preferred embodiment of this utility model, the substrate layer a and substrate layer b are PVC film, PET film, PE film, PU film, PI film, TPU film, SRF film or TAC film with a thickness of 25 to 250 micrometers. These materials have good flexibility, weather resistance and transparency.

[0010] In a preferred embodiment of this invention, the thickness of the OCA adhesive layer is 20–200 micrometers.

[0011] In a preferred embodiment of this invention, the thickness of the privacy layer is 20–300 micrometers. This ensures that while providing effective privacy protection, it does not excessively affect the brightness and clarity of the screen.

[0012] As a preferred embodiment of this utility model, the thickness of the pressure-sensitive adhesive layer is 20-300 micrometers, which has good adhesion.

[0013] As a preferred embodiment of this utility model, the thickness of the release film is 25-200 micrometers, which can protect the privacy film from contamination and damage while making it easy for users to peel off before use.

[0014] The beneficial effects of this utility model are as follows: The utility model has a reasonable structural design. It has several crisscrossing horizontal and vertical light-blocking strips in the privacy layer. The horizontal strips are filled with inverted triangles at intervals, and the vertical strips are filled with strips at intervals, so as to achieve the effect of three-sided privacy protection, leaving only one side as the user's visible area. It has good privacy protection, strong practicality, and can make up for the defects of privacy films on the market. At the same time, it can maintain a high transmittance. Combined with the hardening layer and other structures, it has good wear resistance, strong practicality, and is conducive to widespread application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the anti-spy layer in this utility model. Detailed Implementation

[0017] Example: See Figure 1 and Figure 2This utility model embodiment provides a multi-angle privacy film, which includes a privacy layer 1, a substrate layer a2, a substrate layer b3, a hardening layer 4, an OCA adhesive layer 5, a pressure-sensitive adhesive layer 6, and a release film layer 7. The hardening layer 4, substrate layer a2, OCA adhesive layer 5, privacy layer 1, substrate layer b3, pressure-sensitive adhesive layer 6, and release film layer 7 are sequentially bonded together in a top-to-bottom order.

[0018] Preferably, the hardening layer 4 is a polysiloxane or polyfluorosiloxane coating with a thickness of 1-10 micrometers, which can reduce surface tension and has hydrophobic, oil-repellent, and wear-resistant effects. The substrate layer a2 and substrate layer b3 are both preferably PVC, PET, PE, PU, ​​PI, TPU, SRF, or TAC films with a thickness of 25-250 micrometers. These materials have good flexibility, weather resistance, and transparency. The OCA adhesive layer 5 is preferably 20-200 micrometers thick. The privacy layer 1 is preferably 20-300 micrometers thick, ensuring that it provides effective privacy protection without excessively affecting the screen's brightness and clarity. The pressure-sensitive adhesive layer 6 is preferably 20-300 micrometers thick, providing good adhesion. The release film is preferably 25-200 micrometers thick, protecting the privacy film from contamination and damage while allowing for easy removal by the user before use.

[0019] The privacy layer 1 has several intersecting horizontal light-blocking strips 11 and vertical light-blocking strips 12. The hollow area formed between the horizontal light-blocking strips 11 and the vertical light-blocking strips 12 forms a light-transmitting area 13. The cross-sectional outline of the horizontal light-blocking strip 11 is triangular, and the cross-sectional outline of the vertical light-blocking strip 12 is square.

[0020] When in use, because the privacy layer 1 is provided with several crisscrossing horizontal light-blocking strips 11 and vertical light-blocking strips 12, that is, the horizontal strips are filled with inverted triangles and the vertical strips are filled with strips, so as to achieve the effect of three-sided privacy protection, leaving only one side as the user's visible area. It has good privacy protection, strong practicality, and can make up for the defects of privacy films on the market. At the same time, it can maintain a high transmittance and has a good effect.

[0021] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model. The use of other membranes that are the same as or similar to those used are all within the protection scope of this utility model.

Claims

1. A multi-angle privacy film, comprising a privacy layer, characterized in that, The privacy layer has several crisscrossing horizontal and vertical light-blocking strips. The hollow area formed by the horizontal and vertical light-blocking strips creates a light-transmitting area. The cross-sectional outline of the horizontal light-blocking strip is triangular, and the cross-sectional outline of the vertical light-blocking strip is square.

2. The multi-angle privacy film according to claim 1, characterized in that, It also includes a substrate layer a, a substrate layer b, a hardening layer, an OCA adhesive layer, a pressure-sensitive adhesive layer, and a release film layer, wherein the hardening layer, substrate layer a, OCA adhesive layer, privacy shield, substrate layer b, pressure-sensitive adhesive layer, and release film layer are sequentially bonded together in a top-to-bottom order.

3. The multi-angle privacy film according to claim 2, characterized in that, The hardened layer is a polysiloxane coating or a polyfluorosiloxane coating with a thickness of 1 to 10 micrometers.

4. The multi-angle privacy film according to claim 2, characterized in that, The substrate layer a is a PVC film, PET film, PE film, PU film, PI film, TPU film, SRF film or TAC film with a thickness of 25 to 250 micrometers.

5. The multi-angle privacy film according to claim 2, characterized in that, The substrate layer b is a PVC film, PET film, PE film, PU film, PI film, TPU film, SRF film or TAC film with a thickness of 25 to 250 micrometers.

6. The multi-angle privacy film according to claim 2, characterized in that, The thickness of the OCA adhesive layer is 20–200 micrometers.

7. The multi-angle privacy film according to claim 2, characterized in that, The thickness of the privacy shield is 20–300 micrometers.

8. The multi-angle privacy film according to claim 2, characterized in that, The thickness of the pressure-sensitive adhesive layer is 20–300 micrometers.

9. The multi-angle privacy film according to claim 2, characterized in that, The thickness of the release film is 25–200 micrometers.

Images