Peep-proof film, peep-proof protective film and electronic equipment

Abstract

The utility model discloses a peep-proof film, a peep-proof protective film and an electronic device, the peep-proof film comprises a first adhesive layer, a peep-proof layer and a second adhesive layer, the first adhesive layer covers one side of the peep-proof layer, and the second adhesive layer covers the other side of the peep-proof layer; the peep-proof layer comprises a peep-proof body layer and a light-transmitting layer, a through hole is formed in the position, corresponding to a camera of the electronic equipment, of the peep-proof body layer, the light-transmitting layer is arranged in the through hole, and the light transmittance of the light-transmitting layer is higher than that of the peep-proof body layer. According to the peep-proof film provided by the utility model, the shielding influence of the peep-proof layer on a camera can be avoided in the use process, and when the peep-proof film is matched with the protective layer for use, fog cannot be formed below the protective layer, so that the shooting effect cannot be influenced.

Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories, and in particular to a privacy film, a privacy protective film, an electronic device, and a method for preparing the privacy film. Background Technology

[0002] The rapid development of information technology has made mobile internet terminals the primary channel for people to obtain information in their lives, production, and learning, with mobile phones being the most prominent example. In today's society, information transmission increasingly relies on electronic devices such as mobile phones, computers, and tablets. However, the high frequency of use of electronic devices, especially in open-plan offices, entertainment venues, and living environments, increases the risk of privacy leaks from display screens. Confidentiality and security have become crucial concerns for users.

[0003] With the increasing popularity of electronic devices and the growing demand for confidentiality and security, privacy screen protectors are widely used on the displays of mobile phones, computers, tablets and other electronic devices to protect the information displayed on the screen. Specifically, they meet the viewing needs when viewed directly, but become unreadable when viewed from a certain angle, thus better protecting the user's personal privacy and information security when used in public spaces.

[0004] Privacy screen protectors are already available on the market. They are made by setting a separate louver-style privacy layer on the surface of the substrate layer or by processing a louver structure on the surface of the substrate layer. By controlling the angle of light, the wide viewing angle of the screen is turned into a narrow viewing angle. This is achieved by using a grating structure (louvers) arranged in parallel. This makes it impossible to see the screen information beyond a certain angle, thereby reducing the screen's display angle and protecting user privacy.

[0005] However, in actual use, it has been found that because the privacy film has a louvered structure on its surface, the overall light transmittance of the privacy film is low, which has a negative impact on the visual effect and will greatly affect the shooting effect of the camera under the privacy film.

[0006] like Figure 1As shown, in one embodiment of the prior art, in order to protect privacy while ensuring the camera's shooting effect, a partial removal is made at the location of the camera corresponding to the privacy film. In this prior art, the first adhesive layer, privacy layer, second adhesive layer, and the associated protective layer (such as tempered glass layer) of the privacy film are partially cut off at the location of the camera, leaving a recess, directly exposing the camera to ensure that the camera's shooting effect is not affected by the privacy film. However, in this prior art solution, the left recess is very obvious on the display screen, resulting in a poor user experience. In some improved solutions, for example, the protective layer (such as tempered glass layer) is not partially cut off but used as a whole; in this solution, there is a cavity below the protective layer that has been cut off. Although this improves the problem of the camera being blocked by the privacy film to some extent, during long-term use, especially with temperature changes, fogging is prone to occur in the cavity below the protective layer, which still affects the camera's shooting effect.

[0007] Therefore, there is an urgent need to develop a privacy screen protector that can prevent the privacy layer from obstructing the camera during use, and also prevent fogging caused by the presence of cavities, thus avoiding problems that could affect camera shooting. Utility Model Content

[0008] This utility model provides a privacy screen protector that can prevent the privacy layer from obstructing the camera during use, and when used in conjunction with a protective layer, it can prevent fogging from forming under the protective layer, thus avoiding affecting the shooting effect.

[0009] To solve the above-mentioned technical problems, this utility model provides a privacy film, including a first adhesive layer for bonding with an external protective layer, a privacy layer, and a second adhesive layer for bonding with an electronic device screen, which are arranged sequentially. The first adhesive layer covers one side of the privacy layer, and the second adhesive layer covers the other side of the privacy layer.

[0010] The privacy layer includes a privacy body layer and a light-transmitting layer. The privacy body layer has a through hole corresponding to the position of the electronic device's camera. The light-transmitting layer is disposed in the through hole, and the light transmittance of the light-transmitting layer is higher than that of the privacy body layer.

[0011] Optionally, the light-transmitting layer is flush with both sides of the privacy-protecting body layer.

[0012] Optionally, the through hole is located on the first side of the privacy body layer, and the through hole opens near the first side.

[0013] Optionally, the first adhesive layer is an OCA layer, and the second adhesive layer is a silicone layer.

[0014] Optionally, a first release film is provided on the side of the first adhesive layer away from the privacy layer.

[0015] Optionally, a second release film is provided on the side of the second adhesive layer away from the privacy layer.

[0016] This utility model embodiment also provides a privacy protective film, including a first protective layer and the privacy film provided in this utility model embodiment, wherein the first protective layer covers the side of the first adhesive layer away from the privacy layer.

[0017] Optionally, the first protective layer is a tempered glass layer.

[0018] This utility model embodiment also provides an electronic device, including the privacy protective film provided in this utility model embodiment, the privacy protective film covering the screen of the electronic device.

[0019] The beneficial effects of this invention are as follows: the privacy film's privacy layer is made into a separate privacy body layer and a light-transmitting layer. The privacy body layer has both a privacy structure and a privacy function, achieving a privacy protection effect. Simultaneously, a through-hole is opened in the privacy body layer corresponding to the camera position, and the light-transmitting layer is placed within the through-hole, with a higher light transmittance than the privacy body layer. Thus, the large-area privacy body layer provides privacy, while the high light transmittance of the light-transmitting layer does not adversely affect the camera's shooting. Furthermore, since the light-transmitting layer is located within the through-hole, there is no cavity below the protective layer during use, effectively preventing fogging during operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a privacy screen protector in existing technology;

[0022] Figure 2 This is a schematic diagram of the privacy protective film structure in one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the anti-spy body layer structure in one embodiment of the present invention;

[0024] The reference numerals in the accompanying drawings are as follows:

[0025] 10. Privacy protection layer; 101. Privacy protection body layer; 1011. Through hole; 102. Light-transmitting layer; 20. First adhesive layer; 30. Second adhesive layer; 40. First release film; 50. Second release film; 60. First protective layer; Detailed Implementation

[0026] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] This utility model provides a privacy screen protector, comprising a first adhesive layer 20 for bonding with an external protective layer, a privacy layer 10, and a second adhesive layer 30 for bonding with an electronic device screen, which are arranged sequentially. The first adhesive layer 20 covers one side of the privacy layer 10, and the second adhesive layer 30 covers the other side of the privacy layer 10.

[0030] The privacy film provided by this utility model is a privacy film not combined with an external protective layer (i.e., the first protective layer 60). When it is combined with the external protective layer, it becomes a privacy protective film. Generally speaking, privacy films are intermediate products, while privacy protective films are products directly used in conjunction with electronic device screens. In this utility model, the privacy film, as an intermediate product, can become a link in the electronic device component supply chain, that is, a product supplied by a privacy film supplier. As an upstream product of the privacy protective film, after purchasing the privacy film, the privacy protective film supplier combines it with the first protective layer 60 (such as a tempered glass layer) to form a privacy protective film, which is then applied to electronic devices.

[0031] The first adhesive layer 20 is generally made of a strong, easily curable adhesive, such as OCA, OCR, or OCF adhesive. As the bonding layer between the privacy film and the first protective layer 60, the strength of the first adhesive layer 20 directly affects the bonding stability and strength of the privacy film. Simultaneously, after bonding the privacy film and the first protective layer 60 together, the first adhesive layer 20 itself cures, playing a crucial adhesive role in the product and maintaining its transparency. More specifically, in some embodiments, the first adhesive layer 20 is preferably an OCA layer.

[0032] The second adhesive layer 30, compared to the first adhesive layer 20, is a weaker adhesive. Its main function is to bond the privacy film or privacy protective film to the screen of the electronic device. The second adhesive layer 30 can be made of silicone, acrylic adhesive, PU adhesive, etc. On the one hand, the second adhesive layer 30 can effectively bond the privacy film to the screen of the electronic device; on the other hand, it also has good flexibility, unlike the first adhesive layer 20, which is a hard and brittle adhesive layer after curing. The flexibility of the second adhesive layer 30 ensures that the privacy film or privacy protective film can better adhere to the screen of the electronic device, preventing air bubbles from forming between the film and the screen during or after bonding, which would affect the bonding stability and the aesthetics of the interface.

[0033] The first adhesive layer 20 and the second adhesive layer 30 respectively cover both sides of the privacy layer 10, and the first adhesive layer 20 and the second adhesive layer 30 sandwich the privacy layer 10 in the middle to better fix the light-transmitting layer 102 installed in the through hole 1011 of the privacy body layer 101, thereby improving the overall structural stability. It can be understood that in the embodiment of this utility model, both sides of the light-transmitting layer 102 are also bonded to the first adhesive layer 20 and the second adhesive layer 30 respectively, and the first adhesive layer 20, the second adhesive layer 30, and the privacy layer 10 (including the privacy body layer 101 and the light-transmitting layer 102) are bonded together.

[0034] In one embodiment of the present invention, the privacy layer 10 includes a privacy body layer 101 and a light-transmitting layer 102. The privacy body layer 101 has a through hole 1011 at the position of the camera of the electronic device. The light-transmitting layer 102 is disposed in the through hole 1011, and the light transmittance of the light-transmitting layer 102 is higher than that of the privacy body layer 101.

[0035] like Figure 2 As shown, a privacy film, as a protective film covering the surface of an electronic device screen, generally has the same shape as the screen. Common electronic devices (such as mobile phones, computers, and tablets) have a front-facing camera located above the side of the screen. If the privacy film's privacy body layer 101 covers the camera, its poor light transmittance will affect the camera's shooting effect. Therefore, the privacy layer 10 is manufactured in two parts: a privacy body layer 101 and a light-transmitting layer 102. The light-transmitting layer 102 covers the camera, effectively preventing the privacy body layer 101 from affecting the camera's shooting effect. Specifically, the privacy body layer 101 has a through-hole 1011 corresponding to the position of the electronic device's camera, and the light-transmitting layer 102 is located within the through-hole 1011. The light transmittance of the light-transmitting layer 102 is higher than that of the privacy body layer 101.

[0036] Figure 2 In this embodiment, the topmost layer is the first protective layer 60 (i.e., the tempered glass layer). In other embodiments of this invention, the topmost layer, when not bonded to the protective layer, is the first release film 40. The illustrated structures are similar and will not be reproduced here; they will be described in detail elsewhere.

[0037] In one embodiment of this utility model, the light-transmitting layer 102 is disposed within the through hole 1011. During processing, the outer diameter of the light-transmitting layer 102 is generally processed to be the same as or slightly smaller than the inner diameter of the through hole 1011. During assembly, the second adhesive layer 30 is first applied to one side of the privacy screen body layer 101, and then the light-transmitting layer 102 is inserted into the through hole 1011 of the privacy screen body layer 101. At this time, the light-transmitting layer 102 is located within the through hole 1011 of the privacy screen body layer 101, and the light-transmitting layer 102 is generally bonded together with the second adhesive layer 30. More specifically, both the privacy screen body layer 101 and the light-transmitting layer 102 are bonded to the second adhesive layer 30, forming a whole. In the next step, the first adhesive layer 20 is applied to the side of the privacy screen body layer 101 away from the second adhesive layer 30, thus sandwiching the privacy screen layer 101 between the first adhesive layer 20 and the second adhesive layer 30, forming a whole.

[0038] In one embodiment of this invention, the light transmittance of the light-transmitting layer 102 is higher than that of the privacy-protecting body layer 101. It is understood that the privacy-protecting body layer 101, due to its privacy-protecting structure, naturally has lower light transmittance; while the light-transmitting layer 102 can be made of optical-grade transparent PET, TPU, ARM, or other materials with higher light transmittance. The main purpose of setting the light-transmitting layer 102 is twofold: firstly, to fill the through-holes 1011 on the privacy-protecting body layer 101, preventing it from existing as a cavity and thus avoiding fogging during use, which would affect the camera's performance; secondly, the high light transmittance of the light-transmitting layer 102 effectively avoids the problem of poor camera shooting performance caused by the privacy-protecting body layer 101 covering the camera.

[0039] In one embodiment of this utility model, the privacy-protecting body layer 101 is formed by die-cutting a privacy-protecting substrate (e.g., die-cutting into sheets, with die-cut holes serving as through holes 1011 in the privacy-protecting body layer 101, etc.). The privacy-protecting substrate can be a self-prepared substrate or a commercially available finished substrate; as a supplier of privacy films and privacy protective films, it is preferable to directly purchase finished privacy-protecting substrates commercially. Regarding the preparation of the privacy-protecting substrate, there are two methods: first, by processing a privacy-protecting structure on a standard substrate to form the privacy-protecting substrate; or second, by covering a standard substrate with an independent privacy-protecting structure, and then combining the two to form the privacy-protecting substrate. In summary, in one embodiment of this utility model, the privacy-protecting substrate and the privacy-protecting body layer 101 can be understood as a privacy-protecting substrate or privacy-protecting body layer 101 that integrates a privacy-protecting structure and has a privacy-protecting function during use. More specifically, compared to the light-transmitting layer 102, the privacy-protecting body layer 101 is a layer with a privacy-protecting structure and function, so its light transmittance is generally low; while the light-transmitting layer 102 has a higher light transmittance than the privacy-protecting body layer 101, and is generally made of a simple transparent material without a privacy-protecting structure. Privacy-protecting substrates and the privacy-protecting body layer 101 are widely used in the industry and can be obtained through commercial purchase or processing, so they will not be discussed further here.

[0040] In one embodiment of this utility model, to ensure the overall flatness and installation reliability of the privacy layer 10, the light-transmitting layer 102 is flush with both sides of the privacy body layer 101. Easily understood, "flush with both sides" means that the upper surface of the light-transmitting layer 102 is flush with the upper surface of the privacy body layer 101, the lower surface of the light-transmitting layer 102 is flush with the lower surface of the privacy body layer 101, or the surfaces of the light-transmitting layer 102 and the privacy body layer 101 on the same side are flush; in other words, it can also be understood as the light-transmitting layer 102 and the privacy body layer 101 having the same or nearly the same thickness. This "flush with both sides" design ensures that during use, the privacy layer 10 will not have a cavity due to the light-transmitting layer 102 being thinner than the privacy body layer 101, nor will it protrude from the privacy body layer 101 due to the light-transmitting layer 102 being thicker than the privacy body layer 101. In practical applications, due to the existence of processing errors, it is impossible to guarantee that the two sides are 100% flat. The "two sides flat" mentioned here refers to the two sides being flat within the error range.

[0041] In some embodiments of this utility model, the through hole 1011 is located on the first side of the privacy body layer 101, and the through hole 1011 opens near the first side.

[0042] like Figure 2 As shown, the first side of the privacy screen 101 (the side where the through hole 1011 is located) is the side that matches the position of the camera, and is generally located on the top side of the electronic device screen. In some embodiments, the through hole 1011 can be a horizontally closed through hole 1011 formed by means such as stamping; while in other embodiments, it can be a horizontally open through hole 1011 formed by means such as die-cutting, more specifically, such as... Figure 3 As shown, the whole structure has a concave notch.

[0043] In this embodiment, the privacy film, as a pre-product of the privacy protection film, needs to be processed separately and transported from the manufacturer to the user. During the transport process, if the first adhesive layer 20 and / or the second adhesive layer 30 are exposed, on the one hand, the overall adhesion of the first adhesive layer 20 and / or the second adhesive layer 30 may decrease, resulting in insufficient and unstable bonding strength between the first adhesive layer 20 and the first protective layer 60, and between the second adhesive layer 30 and the screen; on the other hand, the exposed first adhesive layer 20 and / or the second adhesive layer 30 will accumulate dust on their surface, causing the light transmittance of the privacy film to be severely affected by the dust.

[0044] Therefore, as Figure 2As shown, in one embodiment of this utility model, a first release film 40 is provided on the side of the first adhesive layer 20 away from the privacy layer 10. More specifically, the first release film 40 can be selected as a textured film. The first release film 40 can be adhered to the side of the first adhesive layer 20 away from the privacy layer 10. At the same time, the first release film 40 is selected as an easy-to-tear film such as a textured film. After the privacy film is processed and before it is made into a privacy protective film, especially during transportation, the first release film 40 is adhered to the first adhesive layer 20; during the preparation of the privacy protective film, the first release film 40 is then removed to complete the preparation process.

[0045] like Figure 2 As shown, in one embodiment of the present invention, a second release film 50 is provided on the side of the second adhesive layer 30 away from the privacy layer 10; the second release film 50 has similar functions to the first release film 40, and will not be described in detail here.

[0046] In one embodiment of this utility model, such as Figure 2 As shown, a privacy screen protector includes a first protective layer 60 and the privacy screen protector provided by this invention, wherein the first protective layer 60 covers the side of the first adhesive layer 20 away from the privacy layer 10. It is readily understood that during the preparation of the privacy screen protector, the first release film 40 is removed, and the first protective layer 60 is bonded to the position of the first release film 40.

[0047] The first protective layer 60 must possess both light transmittance and hardness. In some embodiments, tempered glass is chosen as the first protective layer 60, in which case the first protective layer 60 is a tempered glass layer. Alternatively, tempered glass can be replaced by PMMA, hardened PET, etc., as long as they meet the requirements for hardness and light transmittance, they can be considered as one of the optional solutions of this invention.

[0048] Meanwhile, in one embodiment of this utility model, an electronic device is disclosed, which includes the above-mentioned privacy film covering the screen of the electronic device. The light-transmitting layer 102 of the privacy film covers the position of the camera on the screen.

[0049] In one embodiment of this utility model, a method for preparing a privacy film is provided. First, a second adhesive layer 30 is bonded to one side of a privacy layer 10. Then, a light-transmitting layer 102 is installed within a through-hole 1011 of a privacy body layer 101. Finally, a first adhesive layer 20 is bonded to the other side of the privacy layer 10 away from the second adhesive layer 30. It is easy to understand that the light-transmitting layer 102 cannot be directly installed and its position fixed within the through-hole 1011. Therefore, it is necessary to first bond the second adhesive layer 30 to one side of the privacy layer 10, and then install the light-transmitting layer 102 within the through-hole 1011 of the privacy body layer 101. In this case, the through-hole 1011 of the privacy body layer 101 serves as the accommodating space for the light-transmitting layer 102, while the second adhesive layer 30 serves as the positioning and limiting element for the light-transmitting layer 102, allowing the light-transmitting layer 102 to be more stably installed within the through-hole 1011.

[0050] In one embodiment of this utility model, the method for preparing the privacy film includes the following steps:

[0051] The privacy substrate is continuously unwound, and through holes 1011 are die-cut at equal intervals on the continuous privacy substrate to prepare a continuous privacy substrate with through holes 1011.

[0052] The privacy film substrate can generally be a commercially available roll substrate. During the preparation of the privacy film, the privacy film substrate is first continuously unwound. During the unwinding process, equally spaced through holes 1011 are die-cut into the continuous privacy film substrate, thus obtaining a continuous privacy film substrate with through holes 1011. It is understandable that in this solution, the privacy film substrate is not directly die-cut into a single-piece privacy layer 10, but rather perforated in one continuous process on a whole roll (strip) of privacy film substrate to ultimately form the desired shape.

[0053] Before drilling holes in a continuous privacy-protecting substrate, to avoid breakage or deformation of the privacy-protecting substrate, the privacy-protecting substrate is first laminated with an OPP film, and then the drilling is performed; after drilling the holes, the OPP film is removed.

[0054] The second adhesive layer 30 substrate is continuously unwound, and the continuous second adhesive layer 30 substrate is bonded to a continuous privacy substrate with through holes 1011, thus preparing a continuous composite substrate composed of a continuous privacy substrate with through holes 1011 and a continuous second adhesive layer 30 substrate. Similarly, the second adhesive layer 30 substrate is also a roll substrate, and the roll of the second adhesive layer 30 substrate is continuously released, and during the continuous movement of the second adhesive layer 30 substrate, it is bonded to the continuous privacy substrate with through holes 1011; in this way, a continuous composite substrate is prepared.

[0055] The light-transmitting layer 102 is prepared. The light-transmitting layer 102 can be a transparent PET film, or it can be made of materials such as TPU or ARM, as long as its transparency meets the photography standards of electronic product cameras. During the preparation of the light-transmitting layer 102, its shape is matched with the inner diameter of the through hole 1011 so that the light-transmitting layer 102 can be easily inserted into the through hole 1011.

[0056] A light-transmitting layer 102 is inserted into and bonded to the through-hole 1011 of a continuous composite substrate to prepare a continuous composite substrate with a light-transmitting layer 102. Generally, because the light-transmitting layer 102 is small in size, it is difficult to handle. Before inserting it into the through-hole 1011, the light-transmitting layer 102 is first laminated with an OPP film. Typically, the surface area of ​​the OPP film is larger than that of the light-transmitting layer 102. The OPP film, along with the light-transmitting layer 102, is inserted into the through-hole 1011. After insertion, the OPP film on the light-transmitting layer 102 is removed.

[0057] The first adhesive layer 20 substrate is continuously unwound, and the continuous first adhesive layer 20 substrate is bonded to the side away from the continuous second adhesive layer 30 substrate on the continuous composite substrate with light-transmitting layer 102. After curing, a continuous privacy film composed of the continuous first adhesive layer 20 substrate and the continuous composite substrate with light-transmitting layer 102 is prepared.

[0058] A continuous privacy film with equal spacing is die-cut to obtain the privacy film provided in one embodiment of this utility model.

[0059] In the above embodiments, the first adhesive substrate, the second adhesive layer 30 substrate, and the continuous privacy substrate are all continuous. Through-holes 1011 are formed at intervals on the continuous privacy body layer 101 in a single step, simultaneously bonding the continuous first adhesive layer 20 and the second adhesive layer 30 to the continuous privacy body layer. After curing, the continuous privacy protective film is easily cut into individual privacy films. In summary, in this embodiment, a multi-layered continuous privacy film is first prepared, and then the continuous privacy film is die-cut into multiple individual small pieces.

[0060] In another embodiment, various substrates are first sliced ​​to create independent components for the explosion-proof film (e.g., privacy screen layer 101, first adhesive layer 20, second adhesive layer 30, light-transmitting layer 102, etc.); then all related substrate slices are collected and assembled into the target privacy screen film. More specifically, this includes:

[0061] The privacy substrate is continuously unwound and die-cut to prepare a sheet-like privacy body layer 101.

[0062] A stencil-shaped privacy screen body layer 101 is prepared, and a privacy screen body layer 101 with through holes 1011 is prepared.

[0063] The first adhesive layer 20 substrate is continuously unwound and die-cut to obtain a sheet-like first adhesive layer 20. The second adhesive layer 30 substrate is continuously unwound and die-cut to obtain a sheet-like second adhesive layer 30.

[0064] Prepare a light-transmitting layer 102. Adhede the second adhesive layer 30 to the privacy body layer 101 with a through hole 1011; install the light-transmitting layer 102 in the through hole 1011 of the privacy body layer 101; adhere the first adhesive layer 20 to the side of the privacy body layer 101 away from the second adhesive layer 30, and obtain a privacy film after curing.

[0065] Whether it is slicing first and then stacking and assembling; or performing continuous processing and assembly, and finally slicing and separating the finished product, in this utility model, the process is as follows: first, the second adhesive layer 30 is bonded to one side of the privacy layer 10, then the light-transmitting layer 102 is installed in the through hole 1011 of the privacy body layer 101, and finally the first adhesive layer 20 is bonded to the other side of the privacy layer 10 away from the second adhesive layer 30.

[0066] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A privacy film, characterized in that, It includes a first adhesive layer for bonding with an external protective layer, a privacy layer, and a second adhesive layer for bonding with an electronic device screen, which are arranged sequentially. The first adhesive layer covers one side of the privacy layer, and the second adhesive layer covers the other side of the privacy layer. The privacy layer includes a privacy body layer and a light-transmitting layer. The privacy body layer has a through hole corresponding to the position of the electronic device's camera. The light-transmitting layer is disposed in the through hole, and the light transmittance of the light-transmitting layer is higher than that of the privacy body layer.

2. The privacy film according to claim 1, characterized in that, The light-transmitting layer is flush with both sides of the privacy-protecting body layer.

3. The privacy film according to claim 1, characterized in that, The through hole is located on the first side of the privacy body layer, and the through hole opens near the first side.

4. The privacy film according to claim 1, characterized in that, The first adhesive layer is an OCA layer, and the second adhesive layer is a silicone layer.

5. The privacy film according to claim 1, characterized in that, A first release film is provided on the side of the first adhesive layer away from the privacy layer.

6. The privacy film according to claim 1, characterized in that, A second release film is provided on the side of the second adhesive layer away from the privacy layer.

7. A privacy screen protector, characterized in that, It includes a first protective layer and a privacy film as described in any one of claims 1 to 4 or 6, wherein the first protective layer covers the side of the first adhesive layer away from the privacy film.

8. The privacy protective film according to claim 7, characterized in that, The first protective layer is a tempered glass layer.

9. An electronic device, characterized in that, Includes the privacy film as described in claim 7 or 8, wherein the privacy film covers the screen of the electronic device.

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