CN115472081A - Peep-proof film and electronic device - Google Patents

Abstract

The application provides a peep-proof film and an electronic device, wherein the peep-proof film comprises a first transparent base material, a second transparent base material and a peep-proof layer, wherein the first transparent base material and the second transparent base material are oppositely arranged, and the peep-proof layer is positioned between the first transparent base material and the second transparent base material; the peep-proof layer comprises a plurality of light-shielding pieces arranged at intervals, one side of each light-shielding piece is attached to the second transparent base material, and the other side of each light-shielding piece extends from the second transparent base material to the direction in which the first transparent base material approaches; wherein, in the direction of the directional first transparent substrate of second transparent substrate, the sectional area that the piece is on a parallel with first transparent substrate that shades reduces gradually, and the shape of the cross section of the piece that shades is isosceles triangle to reduce and shelter from the probability of the transmitted light that is penetrated by first transparent substrate, make more transmitted light can pass the peep-proof membrane, promote the light brightness through the peep-proof membrane, increased electron device's display brightness and then promoted user and used experience.

Description

Anti-spy film and electronic devices

technical field

The present application relates to the field of display technology, in particular to a privacy protection film and electronic devices.

Background technique

With the development of science and technology and the improvement of people's living standards, digital products have become a must-have for people's lives, bringing great convenience to people's work and life. During the use of electronic devices, users are usually involved In order to protect the privacy of the electronic device, in the prior art, an anti-peeping film is provided on the electronic device to reduce the display viewing angle of the electronic device and reduce the viewing effect of the electronic device at a squint angle, thereby protecting the privacy of the user.

The existing anti-spy film is mainly to set a plurality of anti-spy layers at intervals between two transparent film layers, thereby forming a structure similar to a louver. Therefore, it plays the role of anti-peeping screen; however, in actual use, due to the light transmittance, the light emitted by the human eye to capture the screen is less than that when the anti-peeping film is not installed, resulting in a darker screen and less exposure to the human eye. It is difficult to distinguish, and even cause eye fatigue; and if the brightness of the screen is not maintained, the power consumption of the display will increase, which will affect its battery life.

Contents of the invention

Embodiments of the present application provide an anti-peeping film and an electronic device to alleviate the deficiencies in related technologies.

In order to realize the above functions, the technical solutions provided by the embodiments of the present application are as follows:

An anti-peeping film, comprising: a first transparent substrate and a second transparent substrate oppositely arranged, and an anti-peeping layer located between the first transparent substrate and the second transparent substrate;

The anti-peeping layer includes a plurality of light-shielding elements arranged at intervals, one side of the light-shielding element is in contact with the second transparent base material, and the other side of the light-shielding element is close to the second transparent base material. The direction of the first transparent substrate extends;

Wherein, in the direction where the second transparent substrate points to the first transparent substrate, the cross-sectional area of the shading member parallel to the first transparent substrate gradually decreases, and the cross-sectional area of the shading member The shape is an isosceles triangle.

In the privacy film described in the embodiment of the present application, the shading member includes a first side adhering to the second transparent substrate, a second side away from the second transparent substrate, and a a sidewall of the shade between the first side and the second side;

Wherein, the angle between the side wall of the shading member and the vertical line of the second transparent substrate, the width of the first side, and the thickness of the shading member satisfy the following relationship:

Wherein, α represents the angle between the sidewall of the light-shielding member and the vertical line of the second transparent substrate, W represents the width of the first side, and D represents the thickness of the light-shielding member.

In the privacy film described in the embodiment of the present application, the privacy protection layer includes a first light-transmitting portion, and the side of the first light-transmitting portion away from the first transparent base material includes a plurality of recesses arranged at intervals. Grooves, the grooves correspond to the shading members one by one, and the shading members are filled in the grooves; wherein, the refractive index of the first light-transmitting portion is greater than the refractive index of the first transparent substrate .

In the anti-peeping film according to the embodiment of the present application, the anti-peeping layer further includes a second light-transmitting part located between the light-shielding element and the groove, and the second light-transmitting part is located between the first The orthographic projections on the two transparent substrates cover the orthographic projections of the shading member on the second transparent substrate; wherein, the refractive index of the first light-transmitting portion is greater than the refractive index of the second light-transmitting portion.

In the anti-peeping film described in the embodiment of the present application, the refractive index of the first transparent substrate, the refractive index of the first light-transmitting part, and the refractive index of the second light-transmitting part satisfy the following relationship:

Wherein, n1 represents the refractive index of the first transparent substrate, n2 represents the refractive index of the first light-transmitting portion, and n3 represents the refractive index of the second light-transmitting portion.

In the privacy film according to the embodiment of the present application, the side wall of the second light-transmitting portion away from the shade is an arc portion, and the arc protrudes toward the centerline of the shade. .

In the privacy film according to the embodiment of the present application, in a direction in which the second transparent substrate points to the first transparent substrate, the thickness of the shading member is smaller than the thickness of the privacy layer.

In the privacy film described in the embodiment of the present application, a side of the shading member close to the second transparent substrate is flush with a side of the second transparent substrate close to the shading member.

In the privacy film described in the embodiment of the present application, in the direction in which the second transparent substrate points to the first transparent substrate, the cross-section of the side wall of the shading member is linear

An electronic device, comprising a display panel, and any of the above-mentioned anti-peeping films located on the light-emitting side of the display panel; wherein, the first transparent substrate of the anti-peeping film is located on the second transparent substrate and the light-emitting side of the display panel.

Beneficial effects of the present application: The embodiment of the present application provides an anti-peeping film and an electronic device, the anti-peeping film includes a first transparent substrate and a second transparent substrate oppositely arranged, and and the anti-peep layer between the second transparent substrate; the anti-peep layer includes a plurality of light-shielding members arranged at intervals, one side of the light-shielding member is attached to the second transparent substrate, and the light-shielding The other side of the piece extends from the second transparent substrate to the direction in which the first transparent substrate approaches; wherein, in the direction in which the second transparent substrate points to the first transparent substrate, the The cross-sectional area of the shading member parallel to the first transparent substrate gradually decreases, and the shape of the cross-section of the shading member is an isosceles triangle, thereby reducing the probability of blocking the transmitted light incident from the first transparent substrate , so that more transmitted light can pass through the anti-peeping film, increase the brightness of the light passing through the anti-peeping film, increase the display brightness of the electronic device, and further improve user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic cross-sectional view of an existing display device;

Fig. 2 is a perspective view of an existing anti-peeping film;

Fig. 3 is a schematic cross-sectional view of the first type of anti-peeping film provided by the embodiment of the present application;

Fig. 4 is a second cross-sectional schematic view of the anti-peeping film provided by the embodiment of the present application;

Fig. 5 is a second schematic cross-sectional view of the anti-peeping film provided by the embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of an electronic device provided by an embodiment of the present application.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application. In addition, it should be understood that the specific implementations described here are only used to illustrate and explain the present application, and are not intended to limit the present application. In this application, unless stated to the contrary, the used orientation words such as "up" and "down" usually refer to up and down in the actual use or working state of the device, specifically the direction of the drawing in the drawings ; while "inside" and "outside" refer to the outline of the device.

Embodiments of the present application provide an anti-peeping film and an electronic device. Each will be described in detail below. It should be noted that the description sequence of the following embodiments is not intended to limit the preferred sequence of the embodiments.

Please refer to FIG. 3 to FIG. 5 , the embodiment of the present application provides a privacy film and an electronic device. The anti-peeping layer 230 between the first transparent substrate 210 and the second transparent substrate 220;

The anti-peeping layer 230 includes a plurality of light-shielding members 231 arranged at intervals, one side of the light-shielding members 231 is attached to the second transparent substrate 220, and the other side of the light-shielding members 231 is formed by the second transparent substrate 220. The transparent substrate 220 extends toward the direction in which the first transparent substrate 210 approaches;

Wherein, in the direction in which the second transparent substrate 220 points to the first transparent substrate 210, the cross-sectional area of the shading member 231 parallel to the first transparent substrate 210 gradually decreases, and the shading The shape of the cross-section of the member 231 is an isosceles triangle.

Please combine Figure 1, Figure 2 and Table 1; among them, Figure 1 is a schematic cross-sectional view of an existing display device; Figure 2 is a perspective view of an existing anti-peeping film; Table 1 is the technical parameters of the shades in the existing anti-peeping film. In the existing display device 10, the anti-peeping film 200 is usually provided on the display panel 100 to reduce the display viewing angle of the existing display device 10, and reduce the viewing effect of the existing display device 10 at oblique angles, thereby protecting the user. privacy; wherein, the existing anti-peeping film 200 is mainly provided with a plurality of spaced shading members 231 between two opposite first transparent substrates 210 and second transparent substrates 220, thereby forming a similar The louver structure, the working principle of the louver structure is to use the shading member 231 to block the light with a large viewing angle, so as to play the role of an anti-peeping screen.

In the direction where the second transparent substrate 220 points to the first transparent substrate 210, the shape of the cross section of the shading member 231 is one of rectangle or trapezoid, and the shading member 231 includes the The first side 231A of the second transparent base material 220, the second side 231B away from the second transparent base material 220, and the light shielding between the first side 231A and the second side 231B The side wall 231C of the member 231.

Table 1

It should be noted that in the embodiment of the present application, the shape of the cross section of the shading member 231 is trapezoidal, the anti-peeping screen angle β of the privacy film 200 is 60°, and the distance P between two adjacent shading members 231 is The width W of the first side 231A of the light-shielding element 231 is 0.132 mm, the width W of the first side 231A of the light-shielding element 231 is 0.015 mm, and the depth D of the light-shielding element 231 is 0.32 mm.

As can be seen from Table (1), in actual use, since the shape of the cross section of the shading member 231 is trapezoidal, and the side wall 231C of the shading member 231 and the vertical line S of the second transparent substrate 220 The included angle α is too small (usually 1 degree to 2 degrees), so the transmitted light perpendicular to the first transparent substrate 210 will be less (usually, the anti-peeping screen angle β is 60°). The central vertical transmittance of the anti-peeping film 200 is 70%, and the brightness is 1% of the central vertical brightness when squinted at 30°), resulting in a darker screen, difficulty in distinguishing by the human eye, and even eye fatigue; and if it is to ensure the brightness of the screen If it remains unchanged, it will cause the power consumption of the display to increase, which will affect its battery life.

It can be understood that, in the embodiment of the present application, by setting the direction in which the second transparent substrate 220 points to the first transparent substrate 210, the shading member 231 is parallel to the cross-section of the first transparent substrate 210 The area gradually decreases, and the shape of the cross-section of the shading member 231 is an isosceles triangle, so that the transmitted light perpendicular to the first transparent substrate 210 increases, and the light passing through the anti-peeping film 200 is improved. Brightness increases the display brightness of electronic devices, thereby improving user experience.

The technical solution of the present application will now be described in conjunction with specific embodiments.

In an embodiment, please refer to FIG. 3 , which is a schematic cross-sectional view of a first type of privacy film provided by an embodiment of the present application.

This embodiment provides an anti-peeping film 200. The anti-peeping film 200 is used to reduce the viewing effect of the display panel at an oblique angle, thereby protecting the privacy of the user. The anti-peeping film 200 includes a first transparent The base material 210 and the second transparent base material 220 , and the anti-peeping layer 230 located between the first transparent base material 210 and the second transparent base material 220 .

Specifically, the materials of the first transparent substrate 210 and the second transparent substrate 220 include but are not limited to polyethylene terephthalate (PolyethyleneGlycolTerephthalate, PET) or polycarbonate (Polycarbonate, PC), etc. Resin material, in other embodiments, the materials of the first transparent substrate 210 and the second transparent substrate 220 also include polymerizable resin compositions of methacrylate monomers and methacrylate oligomers .

The anti-peeping layer 230 includes a plurality of light-shielding members 231 arranged at intervals, one side of the light-shielding members 231 is attached to the second transparent substrate 220, and the other side of the light-shielding members 231 is formed by the second transparent substrate 220. The transparent substrate 220 extends toward the direction in which the first transparent substrate 210 approaches.

The material of the shading member 231 includes but not limited to a shading material. When the transmitted light enters the anti-peeping layer 230, the incident light is blocked by the shading member 231 at a preset angle, so that the set The wide viewing angle of the display panel with the anti-peeping film 200 is changed to a narrow viewing angle, so that the screen information is not visible on the side wall of the display panel, and the privacy of the user is protected; wherein, the shading member 231 The material is preferably opaque materials such as black ink, gray ink and white ink.

Specifically, in this embodiment, in the direction in which the second transparent substrate 220 points to the first transparent substrate 210, the cross-sectional area of the shading member 231 parallel to the first transparent substrate 210 gradually reduced, and the shape of the cross-section of the shading member 231 is an isosceles triangle; it can be understood that, in this embodiment, the , the cross-sectional area of the shading member 231 parallel to the first transparent substrate 210 gradually decreases, and the shape of the cross-section of the shading member 231 is an isosceles triangle, so that perpendicular to the first transparent substrate The transmitted light entering 210 is increased, the brightness of the light passing through the anti-peeping film 200 is increased, and the display brightness of the electronic device is increased, thereby improving user experience.

Further, in this embodiment, in the direction in which the second transparent substrate 220 points to the first transparent substrate 210, the thickness of the shading member 231 is smaller than the thickness of the privacy layer 230, the The side of the shading member 231 close to the second transparent substrate 220 is flush with the side of the second transparent substrate 220 close to the shading member 231 , so as to avoid that when the privacy film 200 receives pressure, The shading member 231 has a risk of breaking.

The shade 231 includes a first side 231A attached to the second transparent substrate 220, a second side 231B away from the second transparent substrate 220, and a second side 231B located between the first side 231A and the second transparent substrate 220. The side wall 231C of the shading member 231 between the two sides 231B; wherein, the angle between the side wall 231C of the shading member 231 and the perpendicular S of the second transparent substrate 220, the first side The width of 231A and the thickness of the shading member 231 satisfy the following relationship:

Wherein, α represents the angle between the side wall 231C of the shading member 231 and the vertical line S of the second transparent substrate 220, W represents the width of the first side 231A, and D represents the shading member. 231; it should be noted that the width of the first side 231A is the width of the orthographic projection of the shading member 231 on the second transparent substrate 220, when the second transparent substrate 220 points to the In the direction of the first transparent substrate 210 , the cross-section of the side wall 231C of the light-shielding member 231 is linear.

Specifically, please refer to Table 2 for the technical parameters of the shade 231 in the privacy film 200 provided in this application.

Table 2

It should be noted that in this embodiment, the anti-peeping screen angle β of the privacy film 200 is 60°, the distance P between two adjacent shading members 231 is 0.132mm, and the width W of the shading member 231 is 0.015mm. mm, the depth D of the shading member 231 is 0.32 mm, and the angle α between the side wall 231C of the shading member 231 and the vertical line S of the second transparent substrate 220 is 1.4° as an example for illustration. .

It can be understood that, compared with the existing anti-peeping film, this embodiment does not change the pitch P between two adjacent shading members 231, the width W of the shading member 231 and the depth of the shading member 231, thereby maintaining The anti-peeping screen angle β degree of the anti-peeping film 200 is 60°; and, by being arranged in the direction where the second transparent substrate 220 points to the first transparent substrate 210, the shading member 231 is parallel to The cross-sectional area of the first transparent substrate 210 decreases gradually, and the cross-sectional shape of the shading member 231 is an isosceles triangle, so that the transmitted light perpendicular to the first transparent substrate 210 increases, and the lifting process The light brightness of the anti-peeping film 200 increases the display brightness of the electronic device, thereby improving user experience.

In another embodiment, please refer to FIG. 4 , which is a second schematic cross-sectional view of the privacy film provided by the embodiment of the present application.

In this embodiment, the structure of the privacy protection film 200 is similar/identical to the structure of the privacy protection film 200 provided in the above embodiment, please refer to the description of the privacy protection film 200 in the above embodiment for details, and will not be repeated here. To repeat, the difference between the two is only:

In this embodiment, the privacy-preventing layer 230 includes a first light-transmitting portion 232, and the side of the first light-transmitting portion 232 away from the first transparent substrate 210 includes a plurality of grooves 232A arranged at intervals, The groove 232A extends from the second transparent substrate 220 toward the first transparent substrate 210, and the groove 232A corresponds to the shading member 231 one by one, and the shading member 231 is filled in In the groove 232A; specifically, the shape of the groove 232A is the same as the shape of the light shielding member 231 .

Wherein, the first light-transmitting portion 232 can be made of resin material or other light-transmitting materials. Preferably, the material of the first light-transmitting portion 232 includes but not limited to polyethylene terephthalate ( PolyethyleneGlycolTerephthalate, PET) or polycarbonate (Polycarbonate, PC) and other resin materials, in other embodiments, the material of the first light-transmitting part 232 also includes methacrylate monomer, methacrylate oligomer Polymerizable resin composition.

Further, the first transparent part 232 covers the first transparent substrate 210, and the refractive index n2 of the first transparent part 232 is greater than the refractive index n1 of the first transparent substrate 210; it can be understood that Yes, when the anti-peeping film 200 is used to reduce the viewing effect of the display panel at an oblique angle, the transmitted light incident on the display panel toward the first transparent base material 210 is due to the first light-transmitting portion The refractive index n2 of 232 is greater than the refractive index n1 of the first transparent substrate 210, the transmitted light entering the first light-transmitting part 232 from the first transparent substrate 210 will be refracted, and the refracted If the angle is smaller than the incident angle, most of the transmitted light after refraction will be narrowed toward the space between two adjacent shading members 231, so as to improve the light extraction efficiency.

In another embodiment, please refer to FIG. 5 , which is a third schematic cross-sectional view of the privacy film provided by the embodiment of the present application.

In this embodiment, the structure of the privacy protection film 200 is similar/identical to the structure of the privacy protection film 200 provided in the above embodiment, please refer to the description of the privacy protection film 200 in the above embodiment for details, and will not be repeated here. To repeat, the difference between the two is only:

In this embodiment, the anti-peeping layer 230 further includes a second light-transmitting portion 233 located between the light-shielding member 231 and the groove 232A, and the second light-transmitting portion 233 is located between the second transparent The orthographic projection on the substrate 220 covers the orthographic projection of the shading member 231 on the second transparent substrate 220 .

Specifically, the second light-transmitting part 233 can be made of resin material or other light-transmitting materials. Preferably, the material of the second light-transmitting part 233 includes but not limited to polyethylene terephthalate (PolyethyleneGlycolTerephthalate, PET) or polycarbonate (Polycarbonate, PC) and other resin materials, in other embodiments, the material of the second light-transmitting part 233 also includes methacrylate monomer, methacrylate oligomer polymerizable resin composition.

Further, the refractive index n2 of the first light-transmitting portion 232 is greater than the refractive index n3 of the second light-transmitting portion 233; When the viewing effect of the display panel is directed towards the first transparent base material 210, the transmitted light enters the second light transmitting portion 233 from the first light transmitting portion 232, due to the The refractive index n2 of the first light-transmitting portion 232 is greater than the refractive index n3 of the second light-transmitting portion 233, and according to the principle of total reflection, the light entering the second light-transmitting portion 233 is The transmitted light cannot pass through the second light-transmitting portion 233, and the transmitted light will be totally reflected at the contact interface between the first light-transmitting portion 232 and the second light-transmitting portion 233, and the transmitted light It will be completely reflected into the first light-transmitting portion 232 and incident into the second transparent substrate 220 , thereby further improving the light extraction efficiency.

Preferably, in this embodiment, the refractive index n1 of the first transparent substrate 210, the refractive index n2 of the first light-transmitting portion 232, and the refractive index n3 of the second light-transmitting portion 233 satisfy the following relationship Mode:

Wherein, n1 represents the refractive index of the first transparent substrate 210, n2 represents the refractive index of the first light-transmitting portion 232, and n3 represents the refractive index of the second light-transmitting portion 233; it should be noted that this The embodiment takes the refractive index n1 of the first transparent substrate 210 as 1.49, the refractive index n2 of the first light-transmitting portion 232 as 1.66, and the refractive index n3 of the second light-transmitting portion 233 as 1.11 as an example. for example.

It can be understood that when the anti-peeping film 200 is used to reduce the viewing effect of the display panel at an oblique angle, the transmitted light incident from the display panel towards the first transparent substrate 210, the transmitted light from After the first light-transmitting portion 232 enters the second light-transmitting portion 233 , most of the transmitted light will be at the contact interface between the first light-transmitting portion 232 and the second light-transmitting portion 233 When total reflection occurs, the transmitted light will all be reflected into the first light-transmitting portion 232 and enter the second transparent substrate 220, but a small part of the transmitted light will also pass from the The first transparent substrate 210 is emitted from the side away from the privacy layer 230, due to the refractive index n1 of the first transparent substrate 210, the refractive index n2 of the first transparent part 232 and the second transparent The refractive index n3 of the optical part 233 satisfies the above relational expression, so the optical path of this small part of the transmitted light is the same as the optical path of the transmitted light incident from the display panel towards the first transparent substrate 210, This small part of the transmitted light will be reflected back into the privacy film 200 after contacting the reflective sheet in the display panel, so as to achieve recycling.

It should be noted that, in other embodiments, the side wall of the second light-transmitting portion 233 away from the light-shielding member 231 is an arc portion, and the arc portion protrudes toward the center line of the light-shielding member 231 so that the transmitted light in all directions enters the second light-transmitting portion 233 from the first light-transmitting portion 232 and converges between two adjacent light-shielding members 231, which can realize omnidirectional angle Anti-peeping effect.

Please refer to FIG. 6 , which is a schematic cross-sectional view of an electronic device provided by an embodiment of the present application.

This embodiment provides an electronic device 1, the electronic device 1 includes a display panel 100, and the anti-peeping film 200 described in any of the above embodiments located on the light-emitting side 101 of the display panel 100; wherein, the The first transparent substrate 210 of the privacy film 200 is located between the second transparent substrate 220 and the light emitting side 101 of the display panel 100 .

It can be understood that, the privacy-preventing film has been described in detail in the above embodiments, and the description will not be repeated here.

In a specific application, the electronic device 1 may be a display screen of a smart phone, a tablet computer, a notebook computer, a smart bracelet, a smart watch, smart glasses, a smart helmet, a desktop computer, a smart TV or a digital camera, or even a It can be applied to electronic devices with flexible display screens.

In this embodiment, the first transparent substrate 210 of the anti-peeping film 200 is located between the second transparent substrate 220 and the light-emitting side 101 of the display panel 100, so as to reduce the shading from the display panel towards all directions. The probability of the transmitted light entering the first transparent substrate 210 enables more transmitted light to pass through the privacy protection film 200, thereby increasing the brightness of the light passing through the privacy protection film 200, and increasing the electronic device 1 Display brightness, thereby improving user experience.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

To sum up, the embodiments of the present application provide a privacy-preventing film and an electronic device. The privacy-preventing film includes a first transparent substrate and a second transparent substrate opposite to each other, and An anti-peep layer between the second transparent substrates; the anti-peep layer includes a plurality of light-shielding members arranged at intervals, one side of the light-shielding members is attached to the second transparent base material, and the light-shielding members The other side of the second transparent substrate extends toward the first transparent substrate; wherein, in the direction in which the second transparent substrate points to the first transparent substrate, the light-shielding The cross-sectional area of the member parallel to the first transparent substrate gradually decreases, and the cross-section of the light-shielding member has an isosceles triangle shape, thereby reducing the probability of blocking the transmitted light incident from the first transparent substrate, More transmitted light can pass through the anti-peeping film, the brightness of the light passing through the anti-peeping film is improved, and the display brightness of the electronic device is increased, thereby improving user experience.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The above is a detailed introduction to the anti-peeping film and electronic devices provided by the embodiments of the present application. In this paper, specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only to help understanding The technical solution and its core idea of the present application; those skilled in the art should understand that it can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements , which does not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. An anti-peeping film, characterized in that, comprising: a first transparent base material and a second transparent base material oppositely arranged, and an anti-peeping film positioned between the first transparent base material and the second transparent base material peep layer; The anti-peeping layer includes a plurality of light-shielding elements arranged at intervals, one side of the light-shielding element is in contact with the second transparent base material, and the other side of the light-shielding element is close to the second transparent base material. The direction of the first transparent substrate extends; Wherein, in the direction where the second transparent substrate points to the first transparent substrate, the cross-sectional area of the shading member parallel to the first transparent substrate gradually decreases, and the cross-sectional area of the shading member The shape is an isosceles triangle. 2. The anti-peeping film according to claim 1, wherein the shading member comprises a first side attached to the second transparent base material, a second side away from the second transparent base material, and a sidewall of the shade located between the first side and the second side; Wherein, the angle between the side wall of the shading member and the vertical line of the second transparent substrate, the width of the first side, and the thickness of the shading member satisfy the following relationship:

Wherein, α represents the angle between the sidewall of the light-shielding member and the vertical line of the second transparent substrate, W represents the width of the first side, and D represents the thickness of the light-shielding member. 3. The anti-peeping film according to claim 1, wherein the anti-peeping layer comprises a first light-transmitting part, and the side of the first light-transmitting part away from the first transparent substrate comprises a plurality of Grooves arranged at intervals, the grooves correspond to the shading members one by one, and the shading members are filled in the grooves; wherein, the refractive index of the first light-transmitting portion is greater than that of the first transparent substrate The refractive index of the material. 4. The anti-peeping film according to claim 3, characterized in that, the anti-peeping layer further comprises a second light-transmitting portion located between the light-shielding member and the groove, and the second light-transmitting portion The orthographic projection on the second transparent substrate covers the orthographic projection of the shading member on the second transparent substrate; wherein, the refractive index of the first light-transmitting portion is greater than that of the second light-transmitting portion the refractive index. 5. The anti-peeping film according to claim 4, characterized in that, the refractive index of the first transparent substrate, the refractive index of the first light-transmitting portion and the refractive index of the second light-transmitting portion satisfy The following relationship:

Wherein, n1 represents the refractive index of the first transparent substrate, n2 represents the refractive index of the first light-transmitting portion, and n3 represents the refractive index of the second light-transmitting portion. 6. The anti-peeping film according to claim 4, characterized in that, the side wall of the second light-transmitting portion away from the light-shielding member is an arc portion, and the arc portion approaches the centerline of the light-shielding member The direction is convex. 7. The anti-peeping film according to claim 1, characterized in that, in the direction in which the second transparent substrate points to the first transparent substrate, the thickness of the shading member is smaller than that of the anti-peeping layer. thickness. 8. The anti-peeping film according to claim 1, characterized in that, the side of the shading member close to the second transparent substrate is flush with the side of the second transparent substrate close to the shading member . 9. The anti-peeping film according to claim 1, characterized in that, in the direction in which the second transparent substrate points to the first transparent substrate, the cross-section of the side wall of the shading member is linear . 10. An electronic device, characterized by comprising a display panel, and the anti-peeping film according to any one of claims 1-9 located on the light-emitting side of the display panel; wherein, the first part of the anti-peeping film A transparent substrate is located between the second transparent substrate and the light emitting side of the display panel.

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