Notch-Type Adsorption-Type Peeping Prevention Film

Abstract

Provided is a notch - type adsorption - type anti - peeping film that can stably adsorb to an electronic device. 【Solution means】The notch - type adsorption - type anti - peeping film includes an anti - peeping film main body 10 and a coating layer 20. The anti - peeping film main body is a functional film, having a plurality of diffraction gratings inside, provided with a notch 11 at at least one edge portion, and having at least one embedded slot. The notch corresponds to the mounting position of the functional element of the electronic device. The coating layer is provided above the anti - peeping film main body and is used to cover the surface of the anti - peeping film main body, and is provided with an opening 21 corresponding to the notch. At least one adsorption member is provided in the embedded slot between the anti - peeping film main body and the coating layer. The height LF of the coating layer, the height LN of the notch, and the height LM of the adsorption member conform to at least one of the following formulas. (1) LF>LM>LN (2) LF>LM = LN (3) LF = LM≧LN

Description

[Technical field]

[0001] The present invention relates to a notch-type adhesive anti-spy film, and more particularly to an adhesive notch-type adhesive anti-spy film that can increase the adhesive strength to electronic devices. [Background technology]

[0002] With the widespread use of electronic devices and wireless networks, modern people can easily connect to the Internet at any time through electronic devices. However, while electronic devices are convenient to use, they also increase the risk of information exposure, such as making it easier for others to peek at confidential data. To ensure information security, privacy screens have become an important option for protecting information.

[0003] The privacy screen protector can limit the visible range of the display, so that only users from the front can see the content clearly, while users from the side can only see a dark screen effect such as a blurred or black screen, thereby protecting private information. As a physical protection measure, the privacy screen protector can enhance security by reducing the risk of "shoulder surfing attacks," especially when entering passwords or handling confidential files.

[0004] Generally, the bezel of an electronic device (especially a laptop) display includes a metal or magnetically compatible area. Therefore, in order to secure or attach a privacy screen to an electronic device, a magnetic attraction structure or embedded magnetic material is usually provided on the edge or top of the privacy screen. The magnetic attraction structure or embedded magnetic material allows the privacy screen to be securely attached to the bezel of the electronic device's display and prevents it from slipping or falling. Compared to traditional adhesive types, the magnetic attraction structure or embedded magnetic material avoids unnecessary interference from rubber and helps maintain the cleanliness of the display.

[0005] However, the magnetic attraction structure or embedded magnetic material of the anti-spy sheet is generally only applicable to electronic devices with standard display bezels, and may not be applicable to electronic devices with non-standard display bezels. Furthermore, if the magnetic attraction force of the magnetic attraction structure is insufficient, the anti-spy sheet may be slippery and easily fall off, especially when electronic devices such as laptops are frequently moved or tilted during use.

[0006] In order to overcome the above-mentioned drawbacks, the electronics industry is urgently seeking to develop a new anti-peeping sheet that will solve these problems. Summary of the Invention

[0007] Therefore, after much research and development and investment of energy, the inventors of the present application have made breakthroughs and innovations in this field, and have finally developed a display privacy sheet-related product that does not have the defects or problems of the prior art mentioned above, is not only not limited in size, but also can be adjusted to fit the size of the electronic device or can be shared, and is automatically positioned according to the magnetic polarity of the electronic device's bezel, and improves the quality of life in modern society by incorporating new technological means, which has led to the completion of the present invention.

[0008] The primary objective of the present invention is to provide an anti-spy film that can be attached to the outer surface or bezel of an electronic device with a highly stable adhesion, has an adhesive member with or without self-magnetic properties, and is detachably attached to the electronic device. This anti-spy film not only effectively prevents others from peeking at the display screen, but also does not affect or impair the excellent effects of various display functions such as color, image quality, and clarity of the electronic device, nor does it interfere with various functions of the electronic device such as photography, audio recording, video recording, audio playback, and listening.

[0009] To achieve the above-mentioned objectives, from a first perspective of the solution, the present invention provides a notch-type suction-type anti-spying film that can be removably attached to the outside of an electronic device to prevent others from viewing the display screen. The notch-type suction-type anti-spying film includes an anti-spying film main body and a covering layer. The anti-spying film main body is a functional film that has multiple diffraction gratings therein to limit transmitted light to an acceptable viewing angle and define the viewing area. The notch is provided on at least one edge, and the notch corresponds to the mounting position of the functional element of the electronic device to avoid blocking or covering part or all of the functional element. The covering layer is provided above the anti-spying film main body so as to cover the surface of the anti-spying film main body, and has an opening corresponding to the notch.

[0010] Preferably, at least one attracting member, which may or may not have self-magnetism, is further provided between the anti-spy film body and the cover layer.

[0011] More preferably, the height LF of the coating layer, the height LN of the notch, and the height LM of the adsorption member satisfy at least one of the following formulas (1), (2), and (3). (1)LF>LM>LN (2)LF>LM=LN (3)LF=LM≧LN

[0012] Also, in order to achieve the above object, from a second aspect of the solution means, the present invention provides a notch-type adsorption anti-peeping film that is detachably attached to the outside of an electronic device to prevent peeping by others on the display screen, the notch-type adsorption anti-peeping film including an anti-peeping film body and a coating layer. The anti-peeping film body is a functional film having a plurality of diffraction gratings inside for restricting transmitted light within an allowable viewing angle to define a viewing area, having a notch at at least one edge portion and at least one embedding slot being opened, the notch corresponding to the mounting position of the functional element of the electronic device in order to avoid shielding or covering a part or all of the functional element. The coating layer is provided above the anti-peeping film body so as to cover the surface of the anti-peeping film body and includes an opening corresponding to the notch.

[0013] Preferably, at least one side of the embedding slot is adjacent to and aligned with one edge portion of the anti-peeping film body, or is provided so as not to be adjacent to any edge portion of the anti-peeping film body. At least one adsorption member having or not having self-magnetism is further provided in the embedding slot between the anti-peeping film body and the coating layer.

[0014] More preferably, the height LF of the coating layer, the height LN of the notch, the height LM of the adsorption member, and the height LS of the embedding slot conform to at least one of the following formulas (4), (5), and (6). (4) LF>LM>LS=LN (5) LF>LM=LS=LN (6) LF=LM>LS=LN

[0015] Also, in the present invention, the adsorption area of the electronic device includes at least one selected from iron pieces, iron paper, ferromagnetic materials, paramagnetic materials, diamagnetic materials, antiferromagnetic materials, sub-ferromagnetic materials, and combinations thereof.

[0016] In addition, in one embodiment of the present invention, the adsorption member may be a single-layer structure having only one magnetic material layer, or may be a multi-layer structure including at least one magnetic material layer and at least one other material layer.

[0017] In addition, in one embodiment of the present invention, the magnetic material suitable for forming the magnetic material layer includes a self-magnetic material or a non-self-magnetic material, for example, at least one selected from ferromagnetic materials, paramagnetic materials, diamagnetic materials, antiferromagnetic materials, subferromagnetic materials, and combinations thereof.

[0018] More specifically, the magnetic material of the attraction member is at least one iron-containing material selected from the group consisting of sheet magnets, bar magnets, flexible magnets, arc-shaped magnets, permanent magnets, non-permanent magnets, natural magnets, electromagnets, heat-resistant magnets, iron, steel, ferrites, iron oxide (FeO), triiron tetroxide (Fe3O4), Ni-Zn iron oxide (NiZnFe2O4), and Co-Zn iron oxide (CoZnFe2O4), or at least one iron-containing or non-iron-containing alloy material selected from the group consisting of alloys formed from Fe, B, Rb, Sm, graphite, Al, Mn, Cu, Mg, Na, Ni, Co, Cr, Au, Ag, Zn, Bi, Al2O3, MnO, and CoO, and combinations thereof.

[0019] Furthermore, when the attraction member has a multilayer structure, it further includes a first electromagnetic wave absorbing magnetically permeable film and / or a second electromagnetic wave absorbing magnetically permeable film on any or both of the upper and lower surfaces of the magnetic material layer. The first electromagnetic wave absorbing magnetically permeable film and the second electromagnetic wave absorbing magnetically permeable film each have at least one substrate selected from the group consisting of a PET film, a PU film, a PC film, and a TAC film. Furthermore, the magnetic material used in this invention can be axial magnetic iron, or a single-sided or double-sided multi-polar magnetic iron, depending on the magnetization direction, magnetic pole distribution, and magnetic field distribution.

[0020] In one embodiment of the present invention, the suction member has a circular, triangular, rectangular, square, sector-shaped, L-shaped, polygonal, or a combination thereof.

[0021] In one embodiment of the present invention, the thickness of the adsorption member is 0.1 mm to 1.0 mm.

[0022] In one embodiment of the present invention, the number of the adsorption members is one, two, or three or more.

[0023] In one embodiment of the present invention, the magnetic force of the attraction member is in the range of 400 gauss to 3500 gauss.

[0024] In one embodiment of the present invention, the diffraction grating is a shutter-type anti-peeping microstructure.

[0025] In one embodiment of the present invention, the front view angle of the anti-spy film is ±15° to ±75°, which is the maximum angle range at which a user can clearly see the screen content, and is usually expressed as a horizontal or vertical angle.

[0026] In addition, in the present invention, the electronic device is a wearable electronic device, a portable smart device, a smartphone, a mobile phone, a tablet, a laptop or a desktop computer.

[0027] Furthermore, in the present invention, the functional elements include at least one of an image extraction element, an audio transmission and reception element, an optical imaging element, and a digital transmission element.

[0028] In one embodiment of the present invention, the notch-type adhesive anti-spy film further includes a mounting element attached to the surface of the anti-spy film body or the bezel of the electronic device, and the mounting element may be adhesive and / or magnetic, or may have no adhesive and / or magnetic properties. The mounting element may also include a fastener, a hook, or a reinforcing member, which secures the anti-spy film body to the bezel of the electronic device.

[0029] Hereinafter, the purpose and effect of the present invention, as well as the features of the components, structure, etc. of the notch-type adhesive anti-spy film disclosed in the present invention will be described in detail with reference to the accompanying drawings. [Brief description of the drawings]

[0030]

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[0031] In order to more clearly understand the technical features, objects and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The detailed description and technical contents of the present invention will be described as follows with reference to the accompanying drawings. However, the accompanying drawings are for reference and explanation purposes only and are not intended to limit the present invention.

[0032] Referring to FIGS. 1, 2, and 3, FIGS. 1(A)-1(F) are schematic views of the notch-type adsorption anti-peeping film 1 from Embodiment 1-1 to Embodiment 1-6 of the present invention. FIGS. 2(A)-2(H) are side views of the notch-type adsorption anti-peeping film 1 from Embodiment 2-1 to Embodiment 2-8 of the present invention, and FIGS. 3(A)-3(D) are side views of the notch-type adsorption anti-peeping film 1 from Embodiment 3-1 to Embodiment 3-4 of the present invention. Also, in each of the above embodiments, the notch-type adsorption anti-peeping film 1 of the present invention includes at least an anti-peeping film body 10 having a notch 11, and a covering layer 20 having an opening 21 corresponding to the notch 11 and mounted above the anti-peeping film body 10.

[0033] First, from the first aspect of the solution means of the present invention, the anti-peeping film body 10 is a functional film, which has a plurality of diffraction gratings inside for restricting transmitted light within an allowable viewing angle to define a viewing area, and a notch 11 is provided at least on one side edge. The notch 11 corresponds to the mounting position of the functional element of the electronic device in order to avoid shielding or covering part or all of the functional element.

[0034] As shown in FIGS. 1, 2, and 3, the notch 11 of the present invention can be arbitrarily changed according to user needs, the structure and outer shape of the electronic device, etc. For example, the notch 11 may be quadrilateral, rectangular, trapezoidal, circular, elliptical, triangular, or polygonal. Specifically, the form of the notch 11 shown in Embodiments 1-1 to 1-3, Embodiments 2-1 to 2-4, and Embodiments 3-1 and 3-3 of the present invention is trapezoidal, and the notch 11 shown in Embodiments 1-4 to 1-6, Embodiments 2-5 to 2-8, Embodiments 3-2, and 3-4 is rectangular, but the present invention is not limited thereto.

[0035] In addition, these diffraction gratings can be designed according to different requirements. Generally, multi-layer transparent materials and black opaque stripe patterns are alternately arranged to form a micro-structure for preventing peeping like a shutter, and the anti-peeping effect is achieved by allowing light rays to pass only within a certain angle range. For example, these diffraction gratings may be at least one of a linear diffraction grating, an oblique diffraction grating, a honeycomb diffraction grating, a hexagonal diffraction grating, a polygonal diffraction grating, and combinations thereof.

[0036] Next, it can be said that the smaller the visible angle from the front, the better the anti-peeping angle and privacy level. However, excessive line-of-sight restriction is inconvenient when viewing the display, so the user can select an appropriate angle range according to their privacy needs. For example, the front visible angle of these diffraction gratings may be ±15° to ±75°, preferably ±20° to ±70°, more preferably ±25° to ±65°, and most preferably ±30° to ±60°.

[0037] The electronic device to which the notch-type adsorption anti-peeping film of the present invention is applied is not particularly limited. For example, the electronic device can be a wearable electronic device, a portable smart device, a smartphone, a mobile phone, a tablet, a notebook computer or a desktop computer. The functional element includes at least one of a video extraction element, an audio transmission and reception element, an optical imaging element, a digital transmission element, a photosensitive element, and a video identification element.

[0038] Furthermore, at least a part of the bezel of the electronic device is further provided with non-magnetic iron, a magnet, iron, or a magnetic material that can generally be adsorbed by the notch-type adsorption anti-peeping film 1 of the present invention. The magnetic material includes a self-magnetic material or a non-self-magnetic material. The non-magnetic iron is metallic iron, alloy iron, or the like. The magnet is, for example, at least one selected from a sheet magnet, a rod magnet, a flexible magnet, an arc magnet, a permanent magnet, a non-permanent magnet, a natural magnet, an electromagnet, and a heat-resistant magnet. The magnetic material is at least one selected from iron pieces, iron paper, ferromagnetic materials, paramagnetic materials, diamagnetic materials, antiferromagnetic materials, ferrimagnetic materials, and combinations thereof.

[0039] Next, the covering layer 20 is provided above the anti-peeping film main body 10, covers the surface of the anti-peeping film main body 10, and is provided with an opening 21 corresponding to the notch 11. Further, at least one adsorption member 22 having or not having self-magnetism is further provided between the anti-peeping film main body 10 and the covering layer 20. The adsorption member 22 may be axial magnetic iron, one-sided multi-pole magnetic iron, or both-sided multi-pole magnetic iron.

[0040] In the present invention, the covering layer 20 may also be referred to as a protective layer. Generally, it refers to a thin layer, film, or sheet that is coated or applied to the anti-peeping film main body, the adsorption member, the base, the substrate, or the anti-peeping film to impart characteristics such as anti-aging, antifouling, protection, corrosion resistance, wear resistance, waterproofing, antioxidant, appearance improvement, high temperature resistance, or function enhancement. In the present invention, the forming material, forming method, manufacturing method, etc. for manufacturing or forming the covering layer or the protective layer are not particularly limited and can be appropriately selected according to the final use, desired performance, and type of the object to be covered.

[0041] In the present invention, for example, a coating layer or a protective layer can be formed or manufactured using a ceramic material, a rubber material, a glass material, a nano material, a metal material such as Zn, Al, or Cu, a polymer material such as an epoxy resin, a polyurethane, a polycarbonate, a polyester, or a polyacrylic acid, or other materials. Further, for example, the coating layer or the protective layer can be formed or manufactured by a spray method, a dipping method, a roll coating method, an electroplating method, a powder coating, a vapor deposition method, a hot dipping method, printing, a coating method, a coating formation method, a thin film manufacturing method, or other methods.

[0042] In addition, the shape of the adsorption member 22 can be arbitrarily designed according to the requirements of the user or the electronic device. The shape of the adsorption member 22 may be rectangular, circular, elliptical, or polygonal, and the number of adsorption members 22 may be one or more. As shown in FIGS. 2(A), 2(B), 2(E), and 2(F), the adsorption member 22 may be provided with an opening 21 corresponding to the notch 11 near the center, and the recess of the opening 21 may exhibit a substantially long sheet-like appearance. As shown in FIGS. 2(C), 2(D), 2(G), and 2(H), the adsorption member 22 may exhibit a substantially rectangular appearance. As shown in FIGS. 3(A) to 3(D), the adsorption member 22 may have a substantially rectangular appearance. Note that the number of adsorption members 22 is not particularly limited and may be single or plural.

[0043] As shown in FIGS. 3(A) and 3(D), the height LF of the coating layer 20, the height LN of the notch, and the height LM of the adsorption member conform to at least any one of the following formulas (1), (2), and (3). (1) LF>LM>LN (2) LF>LM=LN (3) LF=LM≧LN

[0044] In addition, in one embodiment of the present invention, the adsorption member 22 may be a single-layer structure having only one layer of magnetic material layer, or may be a multi-layer structure including at least one layer of magnetic material layer and at least one layer of other material layer.

[0045] In addition, in one embodiment of the present invention, the magnetic material suitable for forming the magnetic material layer includes a self-magnetic material or a non-self-magnetic material, for example, at least one selected from iron pieces, iron paper, ferromagnetic materials, paramagnetic materials, diamagnetic materials, antiferromagnetic materials, subferromagnetic materials, and combinations thereof.

[0046] In this invention, "ferromagnetic materials" refers to materials that have strong magnetic properties, generate persistent magnetism under the action of an external magnetic field, and retain their magnetism even after the external magnetic field is removed. Examples include iron (Fe), nickel (Ni), cobalt (Co), steel, ferrites, boron (B), rubidium (Rb), samarium (Sm), and alloys thereof.

[0047] "Paramagnetic materials" are materials that exhibit weak magnetism when exposed to an external magnetic field, but lose their magnetism when the magnetic field is removed. For example, they may be at least one of aluminum (Al), manganese (Mn), copper (Cu), magnesium (Mg), and sodium (Na).

[0048] The term "diamagnetic materials" as used herein refers to materials that exhibit weak diamagnetic properties when exposed to an external magnetic field but do not retain their magnetism, such as at least one of copper (Cu), gold (Au), silver (Ag), zinc (Zn), alumina (Al2O3), graphite, and bismuth (Bi).

[0049] "Antiferromagnetic materials" are materials whose magnetic moments are in a state where they are reversed and cancel each other out, and whose internal magnetic moments cancel out under an external magnetic field, resulting in a total magnetism of zero. Examples include at least one of manganese oxide (MnO), iron oxide (FeO), chromium (Cr), and cobalt oxide (CoO).

[0050] In the present invention, "ferrimagnetic materials" refer to materials that are similar to antiferromagnetic materials but do not completely cancel each other out to form pure magnetism because, for example, their directions are opposite and the magnitudes of their magnetic moments are different. For example, it may be at least one of iron oxide (FeO), magnetite (Fe3O4), Ni-Zn ferrite (NiZnFe2O4), and Co-Zn ferrite (CoZnFe2O4).

[0051] More specifically, the magnetic material in the adsorption member is, for example, at least one iron-containing material selected from sheet magnets, rod magnets, flexible magnets, arc magnets, permanent magnets, non-permanent magnets, natural magnets, electromagnets, heat-resistant magnets, iron, steel, ferrites, iron oxide (FeO), iron oxide (FeO), magnetite (Fe3O4), Ni-Zn iron oxide (NiZnFe2O4), and Co-Zn iron oxide (CoZnFe2O4), or at least one iron-containing alloy material or non-iron-containing alloy material selected from alloys formed of Fe, B, Rb, Sm, graphite, Al, Mn, Cu, Mg, Na, Ni, Co, Cr, Au, Ag, Zn, Bi, Al2O3, MnO, and CoO and combinations thereof.

[0052] When the adsorption member is a multilayer structure, it further includes a first electromagnetic wave absorption and magnetic conduction film and / or a second electromagnetic wave absorption and magnetic conduction film on any surface or both surfaces on the upper and lower sides of the magnetic material layer. The first electromagnetic wave absorption and magnetic conduction film and the second electromagnetic wave absorption and magnetic conduction film each have at least one substrate selected from PET thin films, PU thin films, PC thin films, and TAC thin films.

[0053] In the present invention, distinguished by the magnetization direction, magnetic pole distribution, and magnetic field distribution, the adsorption member may be axial magnetic iron, or one-sided multi-pole magnetic iron or both-sided multi-pole magnetic iron.

[0054] In this invention, axial magnetic iron generally refers to an object with only two magnetic poles, a magnetization direction along the long axis (axial direction) of the object, a magnetic field extending from one end to the other and distributed at both ends of the object, forming a simple south (S) and north (N) magnetic field with uniform magnetic field strength. Single-sided multi-pole magnetic iron generally refers to an object with multiple magnetic poles distributed intersecting on the same side, with a magnetization direction of multiple magnetic poles distributed on the same plane on the object side, forming a complex magnetic field, with the magnetic poles and magnetic field varying locally on the same side, and the magnetic field strength being non-uniform. Double-sided multi-pole magnetic iron refers to a magnetic iron with single-sided multi-pole magnetic iron on both sides.

[0055] Furthermore, the operating temperature range of a magnet is generally below 100°C, and prolonged exposure to temperatures exceeding this range should be avoided to ensure magnetic stability and service life. The top, bottom, left, right, and both sides of the attraction member 22 may be further processed and protected from air by zinc plating, epoxy plating, anti-rust plating, etc. In one embodiment, the first electromagnetic wave absorbing magnetically conductive film 221 and the second electromagnetic wave absorbing magnetically conductive film 222 are fixed to the attraction member 22 with a PU adhesive or acrylic adhesive, the thickness of which is 15 μm to 100 μm, and the adhesive strength is 30 g to 1800 g.

[0056] When the attracting member 22 is covered with the covering layer 20, the attracting force and magnetic force inevitably decrease, and in some cases, only about 50 to 60% of the original magnetic force can be maintained. Therefore, to reduce the decrease in attracting force or magnetic force, a first electromagnetic wave absorbing magnetically permeable film 221 and / or a second electromagnetic wave absorbing magnetically permeable film 222 can be further provided on the surface of the magnetic material, thereby improving the attracting magnetic force or magnetic force from 50 to 60% to 70 to 85%. The magnetic force of the attracting member is in the range of 400 to 3500 gauss, preferably in the range of 1000 to 3500 gauss, more preferably in the range of 1500 to 3500 gauss, and most preferably in the range of 2000 to 3500 gauss.

[0057] Further, the adsorption members 22 are arranged singly or plurally according to polarity, regardless of the magnetic polarity of the display screen, or when the display screen has no magnetic function, or the adsorption members 22 are arranged singly or plurally corresponding to the magnetic polarity of the display screen.

[0058] The thickness of the adsorption member 22 is 0.1 mm to 1.0 mm, and the thickness of the adsorption member 22 can be arbitrarily changed according to the requirements of the user or the electronic device. Preferably, the thickness of the adsorption member 22 is 0.2 mm to 0.7 mm. More preferably, it is 0.3 mm to 0.6 mm, and most preferably, it is 0.4 mm to 0.5 mm. Since the thickness of the adsorption member is 0.1 mm to 1.0 mm, the adsorption member 22 is likely to be crushed, chipped, or broken due to bonding processing or improper use by the user, resulting in a decrease in the magnetism of the adsorption member 22 and rendering it unusable. However, after the adsorption member 22 is covered by the first electromagnetic wave absorbing and magnetic conductive film 221 and the second electromagnetic wave absorbing and magnetic conductive film 222, the adsorption member can be firmly fixed even after being crushed or broken, and the conventional magnetic function can be maintained.

[0059] The outer shape of the adsorption member 22 can be arbitrarily changed according to the requirements of the user or the outer shape of the electronic device. The adsorption member can be circular, triangular, rectangular, square, fan-shaped, L-shaped, polygonal, or a combination thereof, but the present invention is not limited thereto. The number of the adsorption members 22 can be arbitrarily changed according to the requirements of the user or the outer shape of the electronic device. The number of the adsorption members can be one, two, or three or more, but the present invention is not limited thereto.

[0060] Referring to FIGS. 4 and 5, FIGS. 4(A) to 4(F) are schematic diagrams of notch-type adsorption anti-peeping films with beveled edges on both sides from Embodiment 4-1 to Embodiment 4-6 of the present invention, where the inner angles are all greater than 90 degrees, and the notch widths are narrow, medium, and wide, respectively. FIGS. 5(A) to 5(F) are schematic diagrams of notch-type adsorption anti-peeping films with vertical sides from Embodiment 5-1 to Embodiment 5-6 of the present invention, where the inner angles are all 90 degrees, and the notch widths are narrow, medium, and wide, respectively. Here, the narrow, medium, and wide widths indicate relative sizes, are not particularly limited, and can be set as needed.

[0061] In addition, in the anti-peeping films 1 shown in FIGS. 4(A), 4(C), 4(E), 5(A), 5(C), and 5(E), the bottom positions at the centers of the notches are approximately flush with the upper part of the electronic device screen, and a covering layer 20 with a slightly closed frame shape and a part of the width of one side being smaller than the width of the other side is designed to be surrounded and provided on the periphery of the anti-peeping film body 10. In the anti-peeping films shown in FIGS. 4(B), 4(D), 4(F), 5(B), 5(D), and 5(F), the bottom positions at the centers of the notches are separated from the upper part of the electronic device screen by a predetermined distance, and a covering layer 20 having at least one open end is designed to be provided around the anti-peeping film body 10. This predetermined distance is not particularly limited and can be set as needed.

[0062] As shown in FIGS. 4(A) to 4(F) and 5(A) to 5(F), in the notch-type adhesive anti-spying films shown in Embodiments 4-1 to 4-6 and Embodiments 5-1 to 5-6 of the present invention, the overall external structure of the anti-spying film 1 is substantially the same as that shown in Embodiment 1, except that the adhesive member 22 is either embedded in or embedded in the anti-spying film body 10, or is provided above the anti-spying film body 10 or below the covering layer 20, and is located at any appropriate position in the peripheral region of the anti-spying film body 10. Similarly, the total number of adhesive members 22 may be one, two, or more. The peripheral region refers to an area spaced a predetermined distance from each side of the anti-spying film 1. The predetermined distance generally does not exceed the dimensions of the bezel of the electronic device, and preferably corresponds to the width of the bezel of the electronic device. Furthermore, in the embodiment, the suction members 22 provided in the peripheral region can provide a stronger suction force, effectively preventing the anti-spy film from slipping or falling off during use of the electronic device, especially when the electronic device is frequently moved or tilted. In addition, the suction members 22 provided around the periphery can flexibly adapt to the shapes and thicknesses of various device bezels, improving applicability.

[0063] Referring to FIG. 6, FIGS. 6(A) to 6(C) are cross-sectional views of notch-type adhesive anti-spy films 1 according to embodiments 6-1 to 6-3 of the present invention. As shown in FIGS. 6(A) to 6(C), the adhesive members 22 are provided above the anti-spy film body 10 or below the covering layer 20, and are positioned at appropriate positions on one side of the anti-spy film body 10. The total number of adhesive members 22 may be one, two, or multiple. The overall appearance of the anti-spy film is substantially the same as that shown in embodiment 1. Therefore, a description of the anti-spy angle, the configuration, thickness, material, properties, dimensions, and magnetic force of the anti-spy film 1 of this embodiment, the anti-spy film body 10, the covering layer 20, and the adhesive members 22 will be omitted.

[0064] Also, in FIG. 6(A) of Embodiment 6-1 of the present invention, the coating layer 20 and the adsorption member 22 are provided at the upper end of either the front or rear surface of the anti-peeping film body 10. In FIG. 6(B) of Embodiment 6-2, the coating layer 20 and the adsorption member 22 are provided at the lower end of either the front or rear surface of the anti-peeping film body 10. In FIG. 6(C) of Embodiment 6-3, the coating layer 20 and the adsorption member 22 are provided at both the upper and lower ends of either the front or rear surface of the anti-peeping film body 10.

[0065] Also, in the present invention, the coating layer 20 may be referred to as a protective layer, and generally, without particular limitation, it can be selected according to the final purpose, required performance, and type of the object to be treated.

[0066] For example, in the present invention, for example, ceramic materials, rubber materials, glass materials, nano materials, metal materials such as Zn, Al, or Cu, polymer materials such as epoxy resins, polyurethanes, polycarbonates, polyesters, or polyacrylic acids, or other materials can be used. Also, for example, the coating layer or protective layer can be formed or manufactured by spray methods, dipping methods, roll coating methods, electroplating methods, powder coating, vapor deposition methods, hot dipping methods, printing, coating methods, coating formation methods, thin film manufacturing methods, or other methods.

[0067] Also, in FIG. 6(A) of Embodiment 6-1 of the present invention, since the adsorption member is provided at the upper end of the anti-peeping film body 10, the notch-type adsorption anti-peeping film 1 of the present invention can be reliably adsorbed to the electronic device, and the user can easily attach and detach it. For example, it is suitable when it is necessary to frequently tap or operate the area below the screen, such as the tap function or the keyboard area. Since the adsorption point is located above, the anti-peeping film is less affected by gravity and is not likely to slide off.

[0068] In addition, in FIG. 6(B) of embodiment 6-2 of the present invention, an adhesive member 22 is provided at the bottom end of the anti-spy film body 10, preventing the notch-type adhesive anti-spy film 1 of the present invention from lifting up from the bottom end, ensuring complete adhesion to the display and enhancing the anti-spy effect. This is ideal when using the display facing up (e.g., placed flat on a desk) and can provide more stable support. If there is a camera or sensor above the display, the adhesive setting at the bottom can avoid affecting its function.

[0069] In addition, in Figure 6(C) of embodiment 6-3 of the present invention, suction members 22 are attached to both the top and bottom ends of the anti-spy screen protector body 10. This allows the notch-type suction-type anti-spy screen protector 1 of the present invention to provide a more reliable suction force and prevent it from shifting or lifting up at any angle during use. This design ensures that the anti-spy screen protector always remains in the optimal position, even on frequently moved laptops and tablet devices. The double suction mechanism on the top and bottom reduces deformation and damage to the anti-spy screen protector caused by a single force, extending its service life.

[0070] Referring to FIG. 7, FIGS. 7(A) to 7(C) are cross-sectional views of notch-type adhesive anti-spy films according to embodiments 7-1 to 7-3 of the present invention. As shown in FIGS. 7(A) to 7(C), the notch-type adhesive anti-spy film 1 of the present invention has substantially the same overall appearance structure as that shown in embodiment 6, except that the adhesive members 22 are located above the anti-spy film body 10 or below the covering layer 20 and are positioned at any suitable location on both sides of the anti-spy film body 10. The total number of adhesive members 22 may be one, two, or more; otherwise, the anti-spy film is substantially the same as that shown in embodiment 1. Therefore, a description of the anti-spy angle, the structure, thickness, material, properties, dimensions, and magnetic force of the anti-spy film 1 of this embodiment, the anti-spy film body 10, the covering layer 20, and the adhesive members 22, will be omitted.

[0071] In FIG. 7(A) of Embodiment 7-1, since the coating layer 20 and the adsorption member 22 are provided at appropriate positions at the upper ends of the front and rear surfaces of the anti-peeping film body 10, the notch-type adsorption anti-peeping film 1 of the present invention can be firmly adsorbed to an electronic device and is not easily detached when it is necessary to frequently tap or operate an area below the display, such as a tap function or a keyboard area.

[0072] In FIG. 7(B) of Embodiment 7-2, since the coating layer 20 and the adsorption member 22 are provided at the lower ends of the front and rear surfaces of the anti-peeping film body 10, the notch-type adsorption anti-peeping film 1 of the present invention can ensure complete adhesion to the screen, prevent lifting from the lower end, and enhance the anti-peeping effect. It is most suitable when the display is used facing up (for example, placed flat on a desk) and can provide more stable support.

[0073] The adsorption member 22 may or may not have spontaneous magnetism. Also, when using the notch-type adsorption anti-peeping film 1 having the adsorption member 22 with self-magnetism, the N-pole and S-pole positions in the adsorption member 22 are automatically magnetically attracted to the corresponding polar positions of the bezel of the electronic device by magnetic attraction. Therefore, according to the present invention, the function of automatically positioning the anti-peeping film at an appropriate position of the electronic device can be achieved. Moreover, due to the adsorption action, the anti-peeping film of the present invention, the display of the electronic device, and the keyboard can be closely adhered without gaps. Therefore, after the use of the electronic device is completed, the electronic device or the display can be directly closed.

[0074] Furthermore, the anti-spy film, display, and keyboard are tightly attached, and the magnet on the electronic device's display corresponds to the sleep switch on the keyboard, allowing the self-magnetic force of the adhesive anti-spy film to transmit the signal to the keyboard's sleep switch. Next, according to the present invention, the front and back surfaces of the notch-type adhesive anti-spy film 1 can be processed to have slightly different optical properties. For example, an anti-glare treatment can be applied to both surfaces to create an anti-glare surface (AG surface) that reduces reflection, contrast, and eye strain. Alternatively, a brightness enhancement treatment can be applied to the other surface to create a brightness enhancement surface (HC surface) with relatively high color contrast. In this way, using the notch-type adhesive anti-spy film 1 of the present invention, which has both an AG surface and an HC surface, allows users to choose between the front and back surfaces with slightly different optical properties as needed. For example, to reduce eye strain, the anti-glare treated AG surface can be used for long periods of operation such as document processing, while the highlight-treated HC surface can be used for watching multimedia movies.

[0075] In embodiment 7-3 (Fig. 7C), the cover layer 20 and the suction member 22 are provided at the top and bottom of the front and rear surfaces of the anti-spy screen protector body 10. The double suction mechanism reduces deformation and damage caused by a single pressure, extending the service life of the screen protector. The notched suction-type anti-spy screen protector 1 of the present invention provides a more stable suction force and prevents it from moving or lifting at any angle during use, making it suitable for laptops or tablet devices that require frequent movement.

[0076] Referring to Fig. 8, Figs. 8(A) to 8(C) are cross-sectional views showing notch-type adhesive anti-spy films shown in Embodiments 8-1 to 8-3 of the present invention. It can be seen that in Embodiment 7 shown in Fig. 7 and Embodiment 8 shown in Fig. 8, the notch-type adhesive anti-spy films 1 of Embodiments 7 and 8 all have substantially the same overall appearance structure. Therefore, in Embodiment 8, descriptions of the anti-spy angle of the anti-spy film 1, the configuration, thickness, material, properties, dimensions, magnetic force, etc. of the anti-spy film body 10, coating layer 20, and adsorption member 22 will be omitted.

[0077] Furthermore, the main differences between the anti-spy films 1 of Embodiments 7 and 8 are as follows: In the anti-spy film 1 of Embodiment 7, the covering layer 20 does not cover the anti-spy film body 10, and at least two covering layers 20 are provided. However, in the anti-spy film 1 of Embodiment 8, at least one covering layer 20 is provided, and at least a part of the upper end or lower end of the anti-spy film body 10 is covered by the covering layer 20.

[0078] Specifically, in embodiment 8-1 of FIG. 8(A), the covering layer 20 is provided at the upper ends of the front and rear surfaces of the anti-peeping film main body 10, and covers the upper ends of the anti-peeping film main body 10 so as not to expose the adsorption members 22. Therefore, in embodiment 8-1 of FIG. 8(A), the total number of covering layers 20 installed is at least one, and the total number of adsorption members 22 installed is generally at least twice the total number of covering layers 20 installed. Furthermore, in embodiment 8-2 of FIG. 8(B), the covering layer 20 is provided at the lower ends of the front and rear surfaces of the anti-peeping film main body 10, and covers the lower ends of the anti-peeping film main body 10 so as not to expose the adsorption members 22. Therefore, in embodiment 8-2 of FIG. 8(B), the total number of covering layers 20 installed is at least one, and the total number of adsorption members 22 installed is generally at least twice the total number of covering layers 20 installed.

[0079] Specifically, in Embodiment 8-3 of FIG. 8(C), the covering layer 20 is provided at the upper and lower ends of the front and rear surfaces of the anti-peeping film body 10, respectively, and covers the upper and lower ends of the anti-peeping film body 10 so as not to expose the suction members 22 respectively. Therefore, in Embodiment 8-3 of FIG. 8(C), the total number of installed covering layers 20 is at least 2 or more, and moreover, the total number of installed suction members 22 is generally more than twice the total number of installed covering layers 20.

[0080] Referring to FIG. 9, here, FIGS. 9(A) to 9(F) are side views showing the notch-type suction anti-peeping film 1 from Embodiment 9-1 to Embodiment 9-6 of the present invention.

[0081] Also, as shown in FIGS. 9(A) to 9(F), the notch-type suction anti-peeping film 1 of the present invention further includes a fitting 24 provided on the surface of the anti-peeping film body 10 or on the bezel of the electronic device. The fitting 24 may have adhesiveness and / or magnetism, or may not have any adhesiveness and / or magnetism. Further, the fitting 24 further includes a fastener, a hanging fitting, or a reinforcing member for fixing the anti-peeping film body 10 to the bezel of the electronic device.

[0082] Referring to FIG. 10, FIG. 10 is a side view of the notch-type suction anti-peeping film shown in Embodiment 10 of the present invention.

[0083] As shown in Fig. 10, the present invention provides a notch-type adsorption anti-peeping film 1 detachably attached to the outside of an electronic device to prevent peeping by others on the display screen. The adsorption anti-peeping film 1 includes an anti-peeping film body 10 and a coating layer 20. The anti-peeping film body 10 is a functional film having a plurality of diffraction gratings inside for restricting transmitted light within an allowable viewing angle to define a viewing area, and a notch 11 is provided at at least one edge portion, and at least one embedding slot 12 is opened. The notch 11 corresponds to the mounting position of the functional element of the electronic device to avoid shielding or covering part or all of the functional element. The coating layer 20 is provided above the anti-peeping film body 10 so as to cover the surface of the anti-peeping film body 10, and has an opening 21 corresponding to the notch 11. Here, at least one adsorption member 22 having or not having self-magnetism is further provided in the embedding slot 12 between the anti-peeping film body 10 and the coating layer 20.

[0084] Further, the height LF of the coating layer 20, the height LN of the notch portion 11, the height LM of the adsorption member 22, and the height LS of the embedding slot 12 conform to at least any one of the following formulas (4), (5), and (6). (4) LF > LM > LS = LN (5) LF > LM = LS = LN (6) LF = LM > LS = LN

[0085] The adsorption area where the notch-type adsorption anti-peeping film can be detachably attached to the electronic device includes at least one selected from iron pieces, iron papers, ferromagnetic materials, paramagnetic materials, diamagnetic materials, antiferromagnetic materials, sub-ferromagnetic materials, and combinations thereof.

[0086] Referring to Fig. 11, where Figs. 11(A) to 11(D) are cross-sectional views of the notch-type adsorption anti-peeping film 1 from Embodiment 11-1 to Embodiment 11-4 of the present invention.

[0087] Also, as shown in FIG. 11, the structure of the notch-type adsorption type anti-peeping film 1 is mainly, as shown in FIG. 11(A), in the embedded slot 12 of Embodiment 11-1 of the present invention, at least one side is provided so as to be adjacent to and aligned with the edge on one side of the anti-peeping film main body 10, which is different from that shown in FIG. 7, but otherwise is substantially the same.

[0088] Also, as shown in FIG. 11(B), mainly, in the embedded slot 12 of Embodiment 11-2, it is different in that it is provided so as not to be adjacent to the edge on either side of the anti-peeping film main body 10.

[0089] Also, as shown in FIG. 11(C), mainly, the coating layer 20 of Embodiment 11-3 completely covers the surface of the anti-peeping film main body 10, and the embedded slot 12 is different in that it is provided adjacent to the edge on at least either side of the anti-peeping film main body 10.

[0090] Also, as shown in FIG. 11(D), mainly, the coating layer 20 of Embodiment 11-4 completely covers the surface of the anti-peeping film main body 10, and the embedded slot 12 is different in that it is provided so as not to be adjacent to the edge on either side of the anti-peeping film main body 10.

[0091] Referring to FIG. 12, this is a partially exploded schematic diagram of a notch-type adhesive anti-spy film according to a twelfth embodiment of the present invention. In this embodiment, as shown in FIG. 12, the recessed slot 12 has at least one side aligned adjacent to one edge of the anti-spy film body 10. To prevent displacement or detachment due to vibration or external force, an adhesive member 22 is embedded in the recessed slot 12. The adhesive member 22 is made of at least one ferromagnetic material selected from magnets, iron members, single-sided multi-polar magnetic iron, and double-sided multi-polar magnetic iron, or a combination thereof. The adhesive member 22 is a multilayer structure formed by first and / or second electromagnetic wave absorbing magnetically conductive films 221 and 222, respectively, disposed above and below the adhesive member 22. The notch-type adhesive anti-spy film according to the twelfth embodiment of the present invention can also be stably attached to an electronic device using an attachment 24.

[0092] Referring to FIG. 13, this is a partially exploded schematic diagram of a notch-type adhesive anti-spy film according to a thirteenth embodiment of the present invention. In this embodiment, the recessed slot 12 is located near one side of the anti-spy film body 10 and is not adjacent to either side. To prevent displacement or detachment due to vibration or external force, the adhesive member 22 is securely fitted into the recessed slot 12. The adhesive member 22 is made of at least one ferromagnetic material, such as a magnet, iron, single-sided multipolar magnetic iron, or double-sided multipolar magnetic iron, or a combination thereof. It is a multilayer structure formed by a first electromagnetic wave absorbing magnetically conductive film 221 and / or a second electromagnetic wave absorbing magnetically conductive film 222 disposed above and below the adhesive member 22. The notch-type adhesive anti-spy film according to the thirteenth embodiment of the present invention can also be stably attached to an electronic device using an attachment 24.

[0093] As described above, the installation position of the suction member 22 of the notch-type suction-type anti-spy screen protector of the present invention can be flexibly arranged as needed to provide optimal usability and stability. First, when the suction member 22 is installed at the upper end of the anti-spy screen protector body 10, it can be firmly attached to the device surface by hanging. Because the suction point is located at the upper end, the anti-spy screen protector body is less affected by gravity and is less likely to slip off, allowing users to easily install and remove it, and operation is convenient. Second, when the suction member is installed at the lower end of the anti-spy screen protector body 10, it can effectively prevent the lower end from lifting up, ensuring complete adhesion between the anti-spy screen protector body and the display screen, thereby improving the anti-spy effect. Furthermore, when the suction member 22 is installed simultaneously at the upper and lower ends of the anti-spy screen protector body 10, it can provide a more stable suction force, further improving the stability of the anti-spy screen during use, preventing movement or lifting from any angle, and ensuring stability and anti-spy effect even when used for long periods of time. The notch-type adhesive anti-spy film of the present invention not only improves the convenience of use, but also optimizes its stability and adhesion, effectively improving the user experience and the reliability of the anti-spy function.

[0094] The embodiments described herein are illustrative in all respects and should not be considered limiting. The scope of the present invention is not limited to the above description but should be defined by the claims, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0095] 1 Notch-type adhesive screen protector 10. Anti-peeping film body 11 Notch 12 Recessed Slots 20 Covering layer 21 Aperture 22 Adsorption member 221 First electromagnetic wave absorbing magnetic conductive film 222 Second electromagnetic wave absorbing conductive film 24 Assistive devices

Claims

1. In a notch-type adsorption anti-peeping film that is detachably attached to the outside of an electronic device to prevent others from peeping at the display screen, It is a functional film that has a plurality of diffraction gratings inside to limit transmitted light within an allowable viewing angle and define a viewing area, and has a notch provided at at least one edge portion, an anti-peeping film body; A coating layer provided above the anti-peeping film body so as to cover the surface of the anti-peeping film body and having an opening corresponding to the notch, and includes: The notch corresponds to the mounting position of the functional element of the electronic device in order to avoid shielding or covering part or all of the functional element. An adsorption member with or without self-magnetism is further provided between the anti-peeping film body and the coating layer. The adsorption member is a single-layer structure having a magnetic material layer made of a magnetic material, or a multi-layer structure including at least a magnetic material layer made of a magnetic material and another material layer made of another material. The magnetic material of the adsorption member is formed of at least one selected from iron pieces, iron paper, ferromagnetic materials, paramagnetic materials, diamagnetic materials, antiferromagnetic materials, ferrimagnetic materials, and combinations thereof. The height LF of the coating layer, the height LN of the notch, and the height LM of the adsorption member conform to at least one of the following formulas (1), (2), and (3). A notch-type adsorption anti-peeping film characterized by this. (1)LF>LM>LN (2)LF>LM = LN (3)LF = LM ≧ LN

2. The adsorption member is a multi-layer structure formed by depositing a first electromagnetic wave absorption and magnetic conductive film, a magnetic material layer, and a second electromagnetic wave absorption and magnetic conductive film. The first electromagnetic wave absorption and magnetic conductive film and the second electromagnetic wave absorption and magnetic conductive film each have at least one base material selected from PET thin films, PU thin films, PC thin films, TAC thin films, and combinations thereof. The notch-type adsorption anti-peeping film according to Claim 1, characterized by this.

3. The adsorption member is circular, triangular, rectangular, square, fan-shaped, L-shaped, polygonal, or a combination thereof. The notch-type adsorption anti-peeping film according to Claim 1, characterized by this.

4. The thickness of the adsorption member is 0.1 mm to 1.0 mm. The notch-type adsorption anti-peeping film according to Claim 1, characterized by this.

5. The number of the adsorption members is one, two, or three or more. The notch-type adsorption anti-peeping film according to claim 1, characterized in that.

6. The magnetic force of the adsorption member is 200 gauss to 3500 gauss. The notch-type adsorption anti-peeping film according to claim 1, characterized in that.

7. The diffraction grating is a shutter-type anti-peeping micro-structure. The notch-type adsorption anti-peeping film according to claim 1, characterized in that.

8. The front visible angle of the notch-type adsorption anti-peeping film is ±15° to ±75°. The notch-type adsorption anti-peeping film according to claim 1, characterized in that.

9. The anti-peeping film further includes a fitting for fixing the anti-peeping film to the electronic device, and the fitting is a fastener or a reinforcing member. The notch-type adsorption anti-peeping film according to claim 1, characterized in that.

10. The electronic device is a wearable electronic device, a portable smart device, a smartphone, a mobile phone, a tablet, a notebook computer or a desktop computer. The notch-type adsorption anti-peeping film according to claim 1, characterized in that.

11. In a notch-type adsorption anti-peeping film for preventing peeping by others on a display screen, which is detachably attached to the outside of an electronic device, It is a functional film, and inside, it has a plurality of diffraction gratings for restricting transmitted light within an allowable viewing angle to define a viewing area, and has a notch at at least one edge portion and at least one embedding slot is opened. An anti-peeping film body, A covering layer provided above the anti-peeping film body so as to cover the surface of the anti-peeping film body and having an opening corresponding to the notch, The notch corresponds to the mounting position of the functional element of the electronic device in order to avoid shielding or covering part or all of the functional element. An adsorption member having or not having self-magnetism is further provided in the embedding slot between the anti-peeping film body and the covering layer. The adsorption member is a single-layer structure having a magnetic material layer made of a magnetic material, or is a multi-layer structure including at least a magnetic material layer made of a magnetic material and another material layer made of another material. The magnetic material of the adsorption member is formed of at least one selected from iron pieces, iron paper, ferromagnetic materials, paramagnetic materials, diamagnetic materials, antiferromagnetic materials, ferrimagnetic materials, and combinations thereof. The notch-type adsorption anti-peeping film is characterized in that the height LF of the coating layer, the height LN of the notch, the height LM of the adsorption member, and the height LS of the embedding slot conform to at least one of the following formulas (4), (5), and (6). (4) LF > LM > LS = LN (5) LF > LM = LS = LN (6) LF = LM > LS = LN

12. The notch-type adsorption anti-peeping film according to claim 11, wherein at least one side of the embedding slot is adjacent to and aligned with one edge of the anti-peeping film body, or is provided so as not to be adjacent to any edge of the anti-peeping film body.

13. The adsorption member is a multilayer structure formed by sequentially depositing a first electromagnetic wave absorbing and magnetic conductive film, a magnetic material layer, and a second electromagnetic wave absorbing and magnetic conductive film. The notch-type adsorption anti-peeping film according to claim 11, wherein the first electromagnetic wave absorbing and magnetic conductive film and the second electromagnetic wave absorbing and magnetic conductive film each have at least one base material selected from PET thin films, PU thin films, PC thin films, TAC thin films, and combinations thereof.

14. The notch-type adsorption anti-peeping film according to claim 11, wherein the adsorption member is circular, triangular, rectangular, square, fan-shaped, L-shaped, polygonal, or a combination thereof.

15. The notch-type adsorption anti-peeping film according to claim 11, wherein the thickness of the adsorption member is 0.1 mm to 1.0 mm.

16. The notch-type adsorption anti-peeping film according to claim 11, wherein the number of the adsorption members is one, two, or three or more.

17. The notch-type adsorption anti-peeping film according to claim 11, wherein the magnetic force of the adsorption member is 200 gauss to 3500 gauss.

18. The notch-type adsorption anti-peeping film according to claim 11, wherein the diffraction grating is a shutter-type anti-peeping microstructure.

19. The front visible angle of the notch-type adsorption anti-peeping film is ±15° to ±75°, and the notch-type adsorption anti-peeping film according to claim 11 is characterized by this.

20. The electronic device is a wearable electronic device, a portable smart device, a smartphone, a mobile phone, a tablet, a notebook computer, or a desktop computer, and the notch-type adsorption anti-peeping film according to claim 11 is characterized by this.

21. The notch-type adsorption anti-peeping film according to claim 13 further includes a fitting for fixing the anti-peeping film to the electronic device, and the fitting is a fastener or a reinforcing member, and is characterized by this.

Images