Peep-proof film convenient for fingerprint unlocking

Abstract

The utility model provides a peep-proof film convenient for fingerprint unlocking, which comprises a peep-proof film structure, the peep-proof film structure comprises a peep-proof film layer, a use layer and a transparent adhesive layer, the peep-proof film layer is provided with a through hole for exposing a fingerprint identification module or a transparent film is arranged at a position corresponding to the fingerprint identification module on the peep-proof film layer, and the peep-proof film layer is provided with a transparent adhesive layer. The using layer is adhered to the outer side surface of the peep-proof film layer through (optical) transparent glue, and the transparent adhesive layer is adhered to the inner side surface of the peep-proof film layer. According to the peep-proof film facilitating fingerprint unlocking, the through hole or the transparent film is formed in the peep-proof film layer, the fingerprint unlocking function is not affected, the problem that a traditional peep-proof film is difficult in fingerprint unlocking or cannot be unlocked is solved, the peep-proof film not only has the anti-explosion and anti-scraping functions, but also can effectively prevent peeping, meanwhile, the sensitivity of fingerprint unlocking is not affected, and the peep-proof film is convenient to use. The method is suitable for screen protection of electronic equipment such as smart phones and tablet personal computers.

Description

Technical Field

[0001] This utility model relates to the field of screen protector technology, specifically to a privacy screen protector that facilitates fingerprint unlocking and is suitable for screen protection of electronic devices such as smartphones and tablets. Background Technology

[0002] With the widespread use of electronic devices, screen protectors have become an essential accessory for protecting device screens from scratches, impacts, and peeping. Traditional screen protectors typically only offer single scratch or shatterproof protection, while privacy screen protectors often affect fingerprint unlocking sensitivity or prevent unlocking altogether. Therefore, the market needs a multi-functional screen protector that effectively prevents peeping without interfering with fingerprint unlocking.

[0003] Therefore, a privacy screen protector that facilitates fingerprint unlocking is proposed. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a privacy film that facilitates fingerprint unlocking.

[0005] The specific technical solution is as follows:

[0006] A privacy screen protector for convenient fingerprint unlocking includes: a privacy screen protector structure, the privacy screen protector structure including a privacy screen protector layer, a service layer and a transparent adhesive layer, wherein the privacy screen protector layer has a through hole for exposing the fingerprint recognition module or the privacy screen protector layer is set as a transparent film at the position corresponding to the fingerprint recognition module, the service layer is attached to the outer surface of the privacy screen protector layer with transparent adhesive, and the transparent adhesive layer is attached to the inner surface of the privacy screen protector layer.

[0007] As a preferred embodiment of this utility model, the working layer is made of transparent PET material, and the side of the working layer away from the privacy film layer has a frosted surface or a high-definition glossy surface.

[0008] As a preferred embodiment of this utility model, the transparent adhesive layer is a transparent AB adhesive layer.

[0009] As a preferred embodiment of this utility model, a second protective film layer is attached to the side of the use layer away from the privacy film layer, and a second tear strip is attached to the side of the second protective film layer away from the use layer near a corner edge.

[0010] As a preferred embodiment of this utility model, a protective film layer is attached to the side of the transparent adhesive layer away from the privacy film layer, and a tear strip is attached to the side of the protective film layer away from the transparent adhesive layer near a corner edge.

[0011] As a preferred embodiment of this utility model, both the second protective film layer and the first protective film layer are transparent PET release films.

[0012] As a preferred embodiment of this utility model, a notch is provided on one side of the privacy film structure.

[0013] This utility model has the following beneficial effects:

[0014] The privacy screen protector for convenient fingerprint unlocking provided by this utility model mainly consists of a privacy screen protector layer, a usage layer, and a transparent adhesive layer. The privacy screen protector layer serves to prevent privacy, and at the same time, it has through holes for exposing the fingerprint recognition module, or a transparent film is set at the position of the fingerprint recognition module on the privacy screen protector layer, which does not affect fingerprint unlocking. This solves the pain point of traditional privacy screen protectors being difficult (or unable to unlock) for fingerprint unlocking. The usage layer provides explosion-proof, scratch-proof, and fingerprint-resistant protection. The transparent adhesive layer allows the privacy screen protector to be firmly attached to the screen of electronic devices. Therefore, this privacy screen protector not only has explosion-proof and scratch-proof functions, but also effectively prevents privacy, while not affecting the sensitivity of fingerprint unlocking. It is suitable for screen protection of electronic devices such as smartphones and tablets. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the privacy film for convenient fingerprint unlocking provided in this embodiment of the utility model;

[0016] Figure 2 An exploded view of the privacy film for convenient fingerprint unlocking provided in this embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the privacy film for convenient fingerprint unlocking provided in an embodiment of the present invention from another perspective.

[0018] In the attached image:

[0019] 1. Privacy film structure; 101. Privacy film layer; 1011. Through hole; 102. Usage layer; 103. Transparent adhesive layer; 104. Protective film layer two; 1041. Tear-off piece two; 105. Protective film layer one; 1051. Tear-off piece one; 106. Notch. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between 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.

[0024] Example

[0025] The privacy screen protector provided in this embodiment facilitates fingerprint unlocking, such as... Figures 1-3 As shown, it includes: a privacy film structure 1, which includes a privacy film layer 101, a service layer 102, and a transparent adhesive layer 103. The privacy film layer 101 has a through hole 1011 for exposing the fingerprint recognition module, or the privacy film layer 101 is set with a transparent film at the position corresponding to the fingerprint recognition module. The service layer 102 is pasted to the outer surface of the privacy film layer 101 with transparent adhesive, and the transparent adhesive layer 103 is pasted to the inner surface of the privacy film layer 101.

[0026] The privacy film for convenient fingerprint unlocking using the above solution mainly consists of a privacy film layer 101, a service layer 102, and a transparent adhesive layer 103. The privacy film layer 101 serves to prevent privacy, and a through hole 1011 is provided on the privacy film layer 101 to expose the fingerprint recognition module, or a transparent film is set on the privacy film layer 101 at the position corresponding to the fingerprint recognition module, which does not affect fingerprint unlocking. This solves the pain point of traditional privacy films having difficulty (or being unable to unlock) fingerprints. The service layer 102 serves to prevent explosions, scratches, and fingerprint marks. The transparent adhesive layer 103 allows the privacy film to be firmly attached to the screen of electronic devices. Therefore, the privacy film not only has explosion-proof and scratch-proof functions, but also effectively prevents privacy, while not affecting the sensitivity of fingerprint unlocking. It is suitable for screen protection of electronic devices such as smartphones and tablets.

[0027] Specifically, in order to ensure the explosion-proof, scratch-proof and fingerprint-resistant effects of the use layer 102, the use layer 102 is made of transparent (PET or frosted) PET material. At the same time, the side of the use layer 102 away from the privacy film layer 101 is frosted or high-definition glossy, which can effectively improve the visual experience.

[0028] To further ensure that the privacy film can be firmly attached to the screen of the electronic device, the transparent adhesive layer 103 is a transparent AB adhesive layer.

[0029] In order to protect the use layer 102 when it is not in use, a second protective film layer 104 is attached to the side of the use layer 102 away from the privacy film layer 101. In order to make the second protective film layer 104 easy to remove, a second tear strip 1041 is attached to the side of the second protective film layer 104 away from the use layer 102 near one of its corner edges.

[0030] In order to protect the transparent adhesive layer 103, a protective film layer 105 is attached to the side of the transparent adhesive layer 103 away from the privacy film layer 101. In order to make the protective film layer 105 easy to remove, a tear strip 1051 is attached to the side of the protective film layer 105 away from the transparent adhesive layer 103 near a corner edge.

[0031] To make protective film layer 2 104 and protective film layer 105 easier to peel off, both protective film layer 2 104 and protective film layer 105 are transparent PET release films.

[0032] To avoid obstructing the camera and sensor holes on the punch-hole screen, a notch 106 is provided on one side of the privacy film structure 1. The notch 106 penetrates the privacy film layer 101, the service layer 102, the transparent adhesive layer 103, the second protective film layer 104, and the first protective film layer 105. The notch 106 is provided to correspond to the camera hole and sensor hole of the mobile phone or tablet.

[0033] It is worth noting that the privacy film layer 101 is existing technology. The manufacturing process of this embodiment is briefly described as follows:

[0034] The privacy film layer 101 is designed based on the optical principle of Venetian blinds (LightControlFilm, LCF). It achieves multi-angle privacy by controlling the light propagation path through precise microstructures. The specific principle is as follows:

[0035] 1. Micro Venetian blind structure

[0036] The privacy film layer 101 has a micron-sized louver-shaped optical grid embedded inside, with the grid direction arranged perpendicular to the screen to form a light channel.

[0037] Light restriction angle: Light is only allowed to pass through in the vertical direction (0°) or within a range of ≤30° between the left and right / up and down angles. Light outside this range is blocked by the grid and cannot reach the viewer's line of sight, thus achieving privacy protection.

[0038] 2. Implementation of top and bottom privacy protection

[0039] Traditional privacy films only restrict the viewing angle to the left and right sides, while this embodiment restricts light diffusion in both horizontal and vertical directions simultaneously through the superposition of two layers of orthogonal grids (or cross-arranged microstructures).

[0040] First grid layer: arranged horizontally, controlling the left and right viewing angles.

[0041] The second grid layer: arranged vertically, controls the vertical viewing angle.

[0042] By optimizing the grid spacing (10-50μm) and height (5-20μm), we ensure that the brightness loss on the front of the screen is ≤15%, while the brightness attenuation on the sides is >90%.

[0043] 3. Transparent treatment of the fingerprint unlocking area

[0044] The location of the fingerprint recognition module corresponding to the through hole 1011 or the transparent film area:

[0045] Through-hole solution: Through laser etching or precision mold stamping, a through-hole with a diameter slightly larger than the fingerprint recognition area (e.g., 15-18mm in diameter) is formed on the privacy film layer 101, completely exposing the fingerprint area on the screen below.

[0046] Transparent film solution: Unstructured transparent optical adhesive (refractive index matching screen glass) is used in the corresponding area of ​​the privacy film layer 101 to eliminate the interference of micro-grid on the light path and ensure that the fingerprint recognition signal (such as optical or ultrasonic signal) is not attenuated.

[0047] 4. Optical performance parameters

[0048] Viewing angle: Effective privacy angle ≤30° (left / right / up / down) when screen brightness drops below 10%.

[0049] Light transmittance: Front light transmittance ≥ 85% (based on uncoated screen).

[0050] Haze: Haze in the privacy area ≤2% (to avoid blurry screen display).

[0051] In summary, the privacy screen protector for convenient fingerprint unlocking provided in this embodiment has the following advantages:

[0052] This privacy screen protector for easy fingerprint unlocking mainly consists of a privacy screen protector layer 101, a service layer 102, and a transparent adhesive layer 103. The privacy screen protector layer 101 serves to prevent privacy, and it also has through holes 1011 for exposing the fingerprint recognition module, or a transparent film at the corresponding position of the fingerprint recognition module, which does not affect fingerprint unlocking. This solves the problem of traditional privacy screen protectors making fingerprint unlocking difficult (or impossible). The service layer 102 provides explosion-proof, scratch-proof, and fingerprint-resistant protection. The transparent adhesive layer 103 allows the privacy screen protector to be firmly attached to the screen of electronic devices. Therefore, this privacy screen protector not only has explosion-proof and scratch-proof functions, but also effectively prevents privacy, while not affecting the sensitivity of fingerprint unlocking. It is suitable for screen protection of electronic devices such as smartphones and tablets.

[0053] In use, peel off the protective film layer 105 using the first peeler 1051, and then use the transparent adhesive layer 103 to firmly attach the privacy film to the screen of the electronic device. At the same time, ensure that the notch 106 is aligned with the camera (hole or sensor hole) on the screen, and ensure that the through hole 1011 or transparent film on the privacy film layer 101 is aligned with the fingerprint recognition module on the screen. After the privacy film is attached, peel off the second protective film layer 104 using the second peeler 1041.

[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A privacy film for easy fingerprint unlocking, characterized by, include: A privacy film structure (1) includes a privacy film layer (101), a service layer (102), and a transparent adhesive layer (103). The privacy film layer (101) has a through hole (1011) for exposing the fingerprint recognition module, or the privacy film layer (101) is set as a transparent film at the position corresponding to the fingerprint recognition module. The service layer (102) is pasted on the outer surface of the privacy film layer (101) with transparent adhesive, and the transparent adhesive layer (103) is pasted on the inner surface of the privacy film layer (101).

2. The easy-fingerprint-unlocking privacy film according to claim 1, wherein, The working layer (102) is made of transparent PET material, and the side of the working layer (102) away from the privacy film layer (101) has a frosted surface.

3. The easy-fingerprint-unlocking privacy film according to claim 1, wherein, The transparent adhesive layer (103) is a transparent AB adhesive layer.

4. The easy-fingerprint-unlocking privacy film according to claim 1, wherein, A second protective film layer (104) is attached to the side of the use layer (102) away from the privacy film layer (101), and a second tear piece (1041) is attached to the side of the second protective film layer (104) away from the use layer (102) near one of its corner edges.

5. The easy-fingerprint-unlocking privacy film according to claim 4, wherein, A protective film layer (105) is attached to the side of the transparent adhesive layer (103) away from the privacy film layer (101), and a tear strip (1051) is attached to the side of the protective film layer (105) away from the transparent adhesive layer (103) near one of its corner edges.

6. The easy-fingerprint-unlocking privacy film according to claim 5, wherein, Both the second protective film layer (104) and the first protective film layer (105) are transparent PET release films.

7. The easy-fingerprint-unlocking privacy film according to any one of claims 1-6, wherein, The privacy film structure (1) has a notch (106) on one side.

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