Anti-peeping film

Abstract

The utility model discloses an anti-peeping film which comprises a toughened glass substrate, a first optical adhesive layer, an anti-peeping layer and an AB adhesive layer which are sequentially laminated from bottom to top, the anti-peeping layer is provided with a through hole, and the through hole is filled with a second optical adhesive layer; according to the anti-peeping film, the through hole is cut in the anti-peeping layer in the anti-peeping film, and the through hole is filled with the optical adhesive layer in an adhesive dispensing or coating mode, so that the photographing quality of a mobile phone after the anti-peeping film is attached to the mobile phone is close to the photographing quality when a camera lens is exposed to the greatest extent, and therefore, the anti-peeping effect is achieved, and the photographing quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of screen protector technology, specifically an anti-peeping film. Background Technology

[0002] With the increasing functionality of smartphones, they have become important work and life assistants. Smartphones store a large number of important documents containing personal privacy and business secrets. However, in public places, the content displayed on smartphones can easily be spied on by people nearby, leading to information leaks. To address this, some people invented privacy screen protectors. Simply applying such a screen protector to the phone screen can effectively protect personal privacy information. The principle is mainly to create a tiny venetian blind structure on the surface of the film. This venetian blind structure only allows light from the front to pass through directly, while light from the sides is scattered. This ensures that the screen content becomes blurred or invisible at certain angles, preventing others from peeking at the content displayed on the phone screen from the side. However, precisely because of this, when we use a phone with a traditional privacy screen protector to take photos or videos, the tiny venetian blind structure on the film surface will also affect the light received by the camera lens, making the photos or videos dim, with reduced contrast, insufficient clarity, color distortion, and even light spots or ghosting. If through holes are cut into the traditional privacy screen protector to expose the camera lens to ensure photography quality, there is a risk of scratches, wear and tear, and dust contamination of the camera lens. Utility Model Content

[0003] To solve the above problems, this utility model provides an anti-peeping film, which includes a tempered glass substrate, a first optical adhesive layer, an anti-peeping layer, and an AB adhesive layer stacked from bottom to top. The anti-peeping layer has through holes, and the through holes are filled with a second optical adhesive layer.

[0004] Preferably, the second optical adhesive layer is made of polyester film (PET).

[0005] Preferably, the polyester film (PET) material is any one of uniaxially oriented polyester film, modified uniaxially oriented polyester film, and biaxially oriented polyester film.

[0006] Preferably, the second optical adhesive layer is made of any one of cellulose triacetate (TAC), acrylic (PMMA), polycarbonate (PC), and acrylic resin.

[0007] Preferably, the AB adhesive layer includes a third optical adhesive layer, a PET base layer, and a silicone layer stacked sequentially from bottom to top.

[0008] To solve the above-mentioned technical problems, this application also provides another technical solution, specifically:

[0009] An anti-peeping film includes a tempered glass substrate, a first optical adhesive layer, an anti-peeping layer, and an AB adhesive layer stacked sequentially from bottom to top. The anti-peeping layer has a through hole, and the first optical adhesive layer has an integrally formed protrusion embedded in the through hole.

[0010] Preferably, the first optical adhesive layer is made of any one of polyester film (PET), cellulose triacetate (TAC), acrylic (PMMA), polycarbonate (PC), and acrylic resin.

[0011] Preferably, the polyester film (PET) material is any one of uniaxially oriented polyester film, modified uniaxially oriented polyester film, and biaxially oriented polyester film.

[0012] To solve the above-mentioned technical problems, this application also provides a third technical solution, specifically:

[0013] An anti-peeping film includes a tempered glass substrate, a first optical adhesive layer, an anti-peeping layer, and an AB adhesive layer stacked sequentially from bottom to top. The AB adhesive layer includes a third optical adhesive layer, a PET base layer, and a silicone layer stacked sequentially from bottom to top. The third optical adhesive layer has an integrally formed protrusion embedded in a through hole.

[0014] Preferably, the third optical adhesive layer is made of any one of polyester film (PET), cellulose triacetate (TAC), acrylic (PMMA), polycarbonate (PC), and acrylic resin.

[0015] The beneficial effects are as follows: Compared to existing technologies that directly cut through holes in the privacy film to expose the camera lens and ensure image quality, this application cuts through holes in the privacy layer of the privacy film and fills the holes with a second optical adhesive layer using dispensing or online coating methods. This ensures that the second optical adhesive layer is uniform and free of air bubbles, achieving a seamless integration between the privacy layer and the second optical adhesive layer. This allows the image quality of the phone after applying the privacy film to be as close as possible to the image quality when the camera lens is exposed, thus achieving both privacy protection and image quality assurance. This application has attempted... Cutting through holes in the privacy layer of the privacy film without filling them with anything can improve the image quality to some extent, but the presence of air in the through holes means that the image quality is still not as good as when the camera lens is exposed. Of course, this application also considers two other alternative technical solutions: improving the first or third optical adhesive layer by setting an integrally formed protrusion in the first or third optical adhesive layer and embedding the protrusion into the through hole, which can achieve both privacy protection and improved image quality. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the exploded structure of Embodiment 1 of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of Embodiment 2 of this utility model;

[0019] In the picture:

[0020] 1. Tempered glass base layer;

[0021] 2. First optical adhesive layer;

[0022] 3. Privacy shield; 31. Through hole;

[0023] 4. Second optical adhesive layer;

[0024] 5. AB adhesive layer; 51. Third optical adhesive layer; 52. PET base layer; 53. Silicone layer. Detailed Implementation

[0025] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0026] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Example 1

[0029] Please see Figure 1This embodiment provides an anti-peeping film, comprising a tempered glass substrate 1, a first optical adhesive layer 2, an anti-peeping layer 3, and an AB adhesive layer 5 stacked sequentially from bottom to top. The anti-peeping layer 3 has through holes 31. A second optical adhesive layer 4 is filled into the through holes 31 using dispensing or online coating methods, ensuring that the second optical adhesive layer 4 is uniform and free of air bubbles, thus achieving a seamless integration between the anti-peeping layer 3 and the second optical adhesive layer 4. The second optical adhesive layer 4 can be made of any one of the following materials: polyester film (PET), cellulose triacetate (TAC), acrylic (PMMA), polycarbonate (PC), and acrylic resin. Specifically, the polyester film (PET) material can be selected from... The film can be any one of uniaxially stretched polyester film, modified uniaxially stretched polyester film, and biaxially stretched polyester film. The AB adhesive layer 5 includes a third optical adhesive layer 51, a PET base layer 52, and a silicone layer 53 stacked sequentially from bottom to top. The silicone layer can be made of nano-silica material, which not only ensures the photo quality of the privacy film but also gives it wear resistance, anti-aging properties, anti-fouling properties, and anti-fingerprint properties. The first optical adhesive layer 2, the second optical adhesive layer 4, and the third optical adhesive layer 51 can all be made of the same material. When the first optical adhesive layer 2, the second optical adhesive layer 4, and the third optical adhesive layer 51 are all made of uniaxially stretched polyester film, due to the uniaxially stretched polyester film... High transparency and low haze improve the light transmittance and clarity of the privacy film. When the first optical adhesive layer 2, the second optical adhesive layer 4, and the third optical adhesive layer 51 are all made of modified uniaxially stretched polyester film, the modified uniaxially stretched polyester film can be chemically or functionally modified according to different scenarios, enabling the privacy film to simultaneously possess functions such as high light transmittance, UV protection, and antistatic properties. In this application, the modified uniaxially stretched polyester film can specifically be a low-color PET polyester film. When the first optical adhesive layer 2, the second optical adhesive layer 4, and the third optical adhesive layer 51 are all made of biaxially stretched polyester film, the biaxially stretched polyester film has high light transmittance and refractive index, which... To reduce glare and reflection, and maintain high clarity and sharpness in photos taken by the camera lens, the biaxially oriented polyester film can be a high-transmittance PET polyester film, i.e., polyethylene terephthalate film. When the first optical adhesive layer 2, the second optical adhesive layer 4, and the third optical adhesive layer 51 are all made of triacetate cellulose, the privacy film can maintain high light transmittance and low haze while reducing optical distortion to ensure photo quality. When the first optical adhesive layer 2, the second optical adhesive layer 4, and the third optical adhesive layer 51 are made of acrylic, polycarbonate, or acrylic resin, the phone can also maintain good photo quality after the privacy film is applied, which will not be elaborated further here.

[0030] Example 2

[0031] Please see Figure 1This embodiment provides an anti-peeping film, comprising a tempered glass substrate 1, a first optical adhesive layer 2, an anti-peeping layer 3, and an AB adhesive layer 5 stacked sequentially from bottom to top. The anti-peeping layer 3 has a through hole 31, and the first optical adhesive layer 2 has an integrally formed protrusion embedded in the through hole 31. During the fabrication of the anti-peeping film, after the through hole is cut into the anti-peeping layer 3, the first optical adhesive layer 2 is coated onto the anti-peeping layer 3 using an online coating method. The first optical adhesive layer 2 flows into and fills the through hole 31, thereby achieving a seamless integration between the anti-peeping layer 3 and the first optical adhesive layer 2. The optical adhesive layer 2 can be made of any one of the following materials: polyester film (PET), cellulose triacetate (TAC), acrylic (PMMA), polycarbonate (PC), and acrylic resin. Specifically, the polyester film (PET) material can be any one of uniaxially stretched polyester film, modified uniaxially stretched polyester film, and biaxially stretched polyester film. The AB adhesive layer 5 includes a third optical adhesive layer 51, a PET base layer 52, and a silicone layer 53, which are stacked sequentially from bottom to top. The first optical adhesive layer 2 and the third optical adhesive layer 51 can be made of the same material.

[0032] Example 3

[0033] This application also provides an anti-peeping film, comprising a tempered glass substrate 1, a first optical adhesive layer 2, an anti-peeping layer 3, and an AB adhesive layer 5 stacked sequentially from bottom to top. The AB adhesive layer 5 includes a third optical adhesive layer 51, a PET base layer 52, and a silicone layer 53 stacked sequentially from bottom to top. The third optical adhesive layer 51 has an integrally formed protrusion embedded in a through hole 31. When preparing the anti-peeping film, after cutting the through hole in the anti-peeping layer 3, the third optical adhesive layer 51 is coated on the anti-peeping layer 3 using an online coating method. The third optical adhesive layer 51 flows into and fills the through hole 31, thereby achieving a seamless integration between the anti-peeping layer 3 and the third optical adhesive layer 51. The third optical adhesive layer 51 can be made of any one of polyester film (PET), cellulose triacetate (TAC), acrylic (PMMA), polycarbonate (PC), and acrylic resin. The first optical adhesive layer 2 and the third optical adhesive layer 51 can be made of the same material.

[0034] In summary, this application provides three technical solutions that can greatly improve the shooting quality of mobile phone camera lenses while satisfying the anti-spy function. One solution is to fill the through hole with the second optical adhesive layer 4 by dispensing or online coating, so that the shooting quality of the mobile phone after applying the anti-spy film is as close as possible to the shooting quality when the camera lens is exposed. The other two technical solutions are to improve the first optical adhesive layer 2 or the third optical adhesive layer 51 by setting an integrally formed protrusion in the first optical adhesive layer 2 or the third optical adhesive layer 51 and embedding the protrusion into the through hole, which can also achieve both anti-spy and improved shooting quality.

[0035] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A privacy screen protector, characterized in that, The device includes a tempered glass substrate (1), a first optical adhesive layer (2), a privacy layer (3), and an AB adhesive layer (5) stacked sequentially from bottom to top. The privacy layer (3) has a through hole (31), and the through hole (31) is filled with a second optical adhesive layer (4).

2. The anti-peeping film according to claim 1, characterized in that, The second optical adhesive layer (4) is made of polyester film.

3. The anti-peeping film according to claim 2, characterized in that, The polyester film material is any one of uniaxially stretched polyester film, modified uniaxially stretched polyester film, and biaxially stretched polyester film.

4. The anti-peeping film according to claim 1, characterized in that, The second optical adhesive layer (4) is made of any one of the following materials: cellulose triacetate, acrylic, polycarbonate and acrylic resin.

5. The anti-peeping film according to claim 1, characterized in that, The AB adhesive layer (5) includes a third optical adhesive layer (51), a PET base layer (52), and a silicone layer (53) stacked sequentially from bottom to top.

6. A privacy screen protector, characterized in that, The device includes a tempered glass substrate (1), a first optical adhesive layer (2), a privacy layer (3), and an AB adhesive layer (5) stacked sequentially from bottom to top. The privacy layer (3) has a through hole (31), and the first optical adhesive layer (2) has an integrally formed protrusion that is embedded in the through hole (31).

7. The anti-peeping film according to claim 6, characterized in that, The first optical adhesive layer (2) is made of any one of the following materials: polyester film, cellulose triacetate, acrylic, polycarbonate and acrylic resin.

8. The anti-peeping film according to claim 7, characterized in that, The polyester film material is any one of uniaxially stretched polyester film, modified uniaxially stretched polyester film, and biaxially stretched polyester film.

9. A privacy screen protector, characterized in that, The material includes a tempered glass substrate (1), a first optical adhesive layer (2), a privacy layer (3), and an AB adhesive layer (5) stacked sequentially from bottom to top. The AB adhesive layer (5) includes a third optical adhesive layer (51), a PET base layer (52), and a silicone layer (53) stacked sequentially from bottom to top. The privacy layer (3) has a through hole (31), and the third optical adhesive layer (51) has an integrally formed protrusion that is embedded in the through hole (31).

10. The anti-peeping film according to claim 9, characterized in that, The third optical adhesive layer (51) is made of any one of the following materials: polyester film, cellulose triacetate, acrylic, polycarbonate and acrylic resin.

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