360-degree peep-proof film

Abstract

The 360-degree peep-proof film comprises a base material layer and a peep-proof layer which are arranged in a stacked mode, the peep-proof layer comprises a plurality of light-transmitting structures which are arranged at intervals in the first direction, the faces, back on to the base material layer, of the light-transmitting structures are sunken to form a plurality of grooves which are arranged at intervals in the second direction, and the depth of the grooves is smaller than the height of the light-transmitting structures. The peep-proof layer further comprises a shading structure, the shading structure comprises a plurality of first shading parts and a plurality of second shading parts, the first shading parts and the light-transmitting structures are alternately arranged in the first direction, the second shading parts are arranged in the grooves in a one-to-one correspondence mode, and the first direction and the second direction form an included angle and are both parallel to the base material layer. The peep-proof layer of the 360-degree peep-proof film is of a single-layer structure, so that the 360-degree peep-proof film does not need to be formed by laminating a plurality of traditional peep-proof layers. And the peep-proof layer is simple in structure and convenient to machine and form, and a complicated forming process is not needed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to optical film technical field, concretely relates to a 360 degree peep-proof film. BACKGROUND

[0002] With the development of information technology, privacy protection becomes an important problem in the field of display technology, and the current means for protecting privacy is mainly to paste a peep-proof film on the display screen. The existing peep-proof film is mainly divided into 180 degree peep-proof film and 360 degree peep-proof film, wherein the 360 degree peep-proof film is usually obtained by stacking two 180 degree peep-proof films at a certain horizontal angle, which leads to the complex structure and high production cost of the existing 360 degree peep-proof film.

[0003] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0004] The utility model aims at providing a 360 degree peep-proof film, which is used to solve the problems of complex structure and high production cost of the existing 360 degree peep-proof film.

[0005] In order to achieve the above-mentioned purpose, the utility model one specific implementation provides a 360 degree peep-proof film, which comprises a base material layer and a peep-proof layer stacked, the peep-proof layer comprises a plurality of light transmission structures arranged at intervals along a first direction, one side of the light transmission structure away from the base material layer is recessed to form a plurality of grooves arranged at intervals along a second direction, the depth of the groove is less than the height of the light transmission structure, the peep-proof layer further comprises a light shielding structure, the light shielding structure comprises a plurality of first light shielding parts arranged alternately with the plurality of light transmission structures along the first direction and a plurality of second light shielding parts arranged one by one in the plurality of grooves, the first direction and the second direction have an included angle and are both parallel to the base material layer.

[0006] In one or more embodiments of the utility model, the first direction is perpendicular to the second direction.

[0007] In one or more embodiments of the utility model, the groove penetrates the light transmission structure along the first direction.

[0008] In one or more embodiments of the utility model, the light transmission structure and the first light shielding part both extend along a straight line direction or a curved direction.

[0009] In one or more embodiments of the utility model, the second light shielding part comprises a first surface and a second surface oppositely arranged along the second direction, in the direction close to the base material layer, the interval between the first surface and the second surface gradually decreases or remains unchanged.

[0010] In one or more embodiments of the present application, the first surface and the second surface are symmetrically arranged or arranged in parallel.

[0011] In one or more embodiments of the present application, the first surface is a plane.

[0012] In one or more embodiments of the present application, the second surface is a plane.

[0013] In one or more embodiments of the present application, the substrate layer is made of any one of PET film, PC film, PVC film, PU film, PI film and TPU film.

[0014] In one or more embodiments of the present application, the height of the substrate layer ranges from 20 to 200 microns.

[0015] In one or more embodiments of the present application, the height of the anti-peep layer ranges from 40 to 100 microns.

[0016] In one or more embodiments of the present application, the 360° anti-peep film further comprises a pre-coating layer arranged between the substrate layer and the anti-peep layer, and the pre-coating layer is made of UV glue.

[0017] In one or more embodiments of the present application, the height of the pre-coating layer ranges from 10 to 20 microns.

[0018] In one or more embodiments of the present application, the light transmittance of the pre-coating layer is greater than or equal to 95%.

[0019] Compared with the prior art, the anti-peep layer of the 360° anti-peep film of the present application is a single-layer structure, and does not need to adopt a multi-layer traditional anti-peep layer to form a 360° anti-peep film. Moreover, the anti-peep layer of the present application has a simple structure and is easy to process and form, and does not need a complex forming process. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0021] Figure 1 is a perspective view of the 360° anti-peep film in the first embodiment of the present application;

[0022] Figure 2 is an exploded view of the anti-peep layer in the first embodiment of the present application;

[0023] Figure 3 It is a perspective view of the light shielding structure in the embodiment one of the utility model;

[0024] Figure 4 It is a sectional view of the 360° anti-peeping film perpendicular to the second direction in the embodiment one of the utility model;

[0025] Figure 5 It is a sectional view of the 360° anti-peeping film perpendicular to the first direction in the embodiment one of the utility model;

[0026] Figure 6 It is a sectional view of the 360° anti-peeping film perpendicular to the first direction in the embodiment two of the utility model;

[0027] Figure 7 It is a sectional view of the 360° anti-peeping film perpendicular to the first direction in the embodiment three of the utility model.

[0028] Main figure mark explanation: 1, base material layer, 2, pre-coating layer, 3, anti-peeping layer, 31, light transmission structure, 311, groove, 32, light shielding structure, 321, first light shielding part, 322, second light shielding part, 3221, first surface, 3222, second surface. DETAILED DESCRIPTION

[0029] In order to make the person skilled in the art better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely in the following with reference to the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the protection scope of the utility model.

[0030] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "top", "bottom", "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the utility model.

[0031] The terms "first direction" and "second direction" have an included angle and are parallel to the base material layer, the preferred included angle between "first direction" and "second direction" is 90°, "first direction" can refer to the X-axis direction in Figure 1 , "second direction" can refer to the Y-axis direction in Figure 1The Y-axis direction in the figure. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified.

[0032] Embodiment one

[0033] Referring to Figures 1 to 5 As shown in the figure, the embodiment provides a 360° privacy film, which comprises a substrate layer 1, a pre-coating layer 2 and a privacy layer 3 arranged in sequence.

[0034] The substrate layer 1 is made of a light-transmitting film material, which includes but is not limited to any one of PET film, PC film, PVC film, PU film, PI film and TPU film. The height of the substrate layer 1 ranges from 20 to 200 microns, and can be specifically set to 20 microns, 30 microns, 50 microns, 100 microns, 120 microns, 150 microns or 200 microns.

[0035] The pre-coating layer 2 is made of UV glue, which ensures that its light transmittance is greater than or equal to 95%. Anti-reflection or anti-fingerprint additives can also be added to the inside of the pre-coating layer 2. The height of the pre-coating layer 2 ranges from 10 to 20 microns, and can be specifically set to 10 microns, 12 microns, 14 microns, 15 microns, 16 microns, 18 microns or 20 microns.

[0036] The pre-coating layer 2 is formed on the surface of the substrate layer 1 by coating process, thereby leveling the surface of the substrate layer 1 and reducing the light scattering degree of the surface of the substrate layer 1. Moreover, the adhesion between the pre-coating layer 2 and the privacy layer 3 is stronger, which can improve the stability of the overall structure of the 360° privacy film. In addition, the pre-coating layer 2 can also cover process defects such as processing marks and micro-cracks, so that the 360° privacy film has no obvious defects in appearance, and the aesthetic appearance of the 360° privacy film is improved.

[0037] The height of the privacy layer 3 ranges from 40 to 100 microns, and can be specifically set to 40 microns, 50 microns, 60 microns, 70 microns, 80 microns, 90 microns or 100 microns.

[0038] The privacy layer 3 comprises a plurality of light-transmitting structures 31 and light-blocking structures 32, the plurality of light-transmitting structures 31 are arranged in the first direction, the back of the light-transmitting structure 31 opposite to the substrate layer 1 is recessed with a plurality of grooves 311, the plurality of grooves 311 on a single light-transmitting structure 31 are arranged in the second direction, the depth of the groove 311 is less than the height of the light-transmitting structure 31, that is, the groove 311 does not penetrate the light-transmitting structure 31 in the height direction of the light-transmitting structure 31. The light-blocking structure 32 comprises a plurality of first light-blocking parts 321 arranged alternately with the plurality of light-transmitting structures 31 in the first direction and a plurality of second light-blocking parts 322 arranged one-to-one in the plurality of grooves 311.

[0039] Compared with the traditional privacy layer, the privacy layer 3 in the embodiment is a single-layer structure formed integrally, the first light-blocking part 321 of the privacy layer 3 can play a privacy protection role in the first direction and the direction deviated from the first direction by a certain angle, and the second light-blocking part 322 can play a privacy protection role in the second direction and the direction deviated from the second direction by a certain angle, so as to realize the 360° privacy protection effect of the single-layer structure of the privacy layer 3.

[0040] The light-transmitting structure 31 is formed on the surface of the pre-coating layer 2 opposite to the substrate layer 1 by a mold, specifically, the mold corresponding to the shape of the light-transmitting structure 31 is placed on the surface of the pre-coating layer 2, and the liquid light-transmitting material is injected into the mold, and the solid light-transmitting structure 31 is formed after the liquid light-transmitting material is cooled and solidified. After the light-transmitting structure 31 is formed, the light-blocking material is filled between the adjacent light-transmitting structures 31 and in the groove 311 on the light-transmitting structure 31, and finally the light-blocking structure 32 is formed. In addition, the outer side of the light-transmitting structure 31 at the end can also be filled with the light-blocking material to form the first light-blocking part 321.

[0041] Referring to Figure 5 When the user faces the second direction to observe the privacy layer 3, the height of the second light-blocking part 322 (that is, the depth of the groove 311) has an important influence on the privacy protection angle thereof, and in the case of not changing the shape of the second light-blocking part 322, the privacy protection angle of the second light-blocking part 322 is positively correlated with the height of the second light-blocking part 322. For example, when the height of the second light-blocking part 322 is a preset height, the unilateral privacy protection angle thereof is α1, and when the preset height of the second light-blocking part 322 is increased, the unilateral privacy protection angle thereof is reduced to α2, and the side privacy protection effect is better.

[0042] Therefore, in actual application, the privacy protection angle of the second light-blocking part 322 can be adaptively adjusted according to the needs of the user, without the need to adjust the height of the light-transmitting structure 31. For the user who pays more attention to the privacy protection effect, the height of the second light-blocking part 322 can be appropriately increased to improve the light-blocking performance. For the user who pays more attention to the light transmittance, the height of the second light-blocking part 322 can be appropriately reduced to improve the light-transmitting performance.

[0043] Referring to Figure 2As shown, the groove 311 of the embodiment extends through the light-transmitting structure 31 along the first direction, ensuring that the second light-blocking portion 322 has a certain length in the first direction, thereby improving the light-blocking performance of the second light-blocking portion 322. In addition, the second light-blocking portion 322 can form an integrated structure with the first light-blocking portion 321, thereby improving the structural stability of the second light-blocking portion 322.

[0044] With reference to Figure 5 As shown, the second light-blocking portion 322 of the embodiment includes a first surface 3221 and a second surface 3222 that are oppositely arranged along the second direction, and the distance between the first surface 3221 and the second surface 3222 gradually decreases in the direction close to the substrate layer 1.

[0045] Further, the first surface 3221 and the second surface 3222 are both configured as planes, and the first surface 3221 and the second surface 3222 are symmetrically arranged

[0046] Further, to achieve the above structure design, in a plane perpendicular to the first direction, the shape of the vertical projection of the second light-blocking portion 322 of the embodiment is configured as an isosceles trapezoid.

[0047] With reference to Figures 1 to 5 As shown, the light-transmitting structure 31 and the first light-blocking portion 321 of the embodiment are both configured as linear strip structures that extend along a linear direction.

[0048] In other alternative embodiments, the light-transmitting structure 31 and the first light-blocking portion 321 can also be configured as curved strip structures that extend along a curved direction.

[0049] Embodiment Two

[0050] With reference to Figure 6 As shown, the embodiment provides a 360° privacy film, and the difference between the 360° privacy film of the embodiment and the embodiment one is that, in a plane perpendicular to the first direction, the shape of the vertical projection of the second light-blocking portion 322 of the embodiment is configured as an isosceles triangle.

[0051] At this time, the single-side privacy angle of the second light-blocking portion 322 is α3, and if the vertical projection of the second light-blocking portion 322 is configured as an isosceles trapezoid with a length equal to the length of the base of the above isosceles triangle, the single-side privacy angle of the second light-blocking portion 322 will be reduced to α4, and the privacy effect is improved. It can be seen that the larger the size of the vertical projection of the second light-blocking portion 322 on the side close to the substrate layer 1, the better the privacy effect of the second light-blocking portion 322, and the user can reasonably design the shape of the vertical projection of the second light-blocking portion 322 according to the actual needs based on this relationship.

[0052] Embodiment Three

[0053] With reference to Figure 7As shown, the 360° privacy film of the embodiment is different from the first embodiment in that, in the plane perpendicular to the first direction, the shape of the vertical projection of the second light shielding part 322 is configured as a parallelogram, the first surface 3221 and the second surface 3222 of the second light shielding part 322 are parallel to each other, and the included angle between the first surface 3221 and the second surface 3222 and the substrate layer 1 is not equal to 90°, that is, the first surface 3221 and the second surface 3222 are configured as two mutually parallel inclined surfaces, so that the light shielding angles α5 and α6 on both sides of the second light shielding part 322 are not the same, and the differential design of the light shielding angles on both sides of the second light shielding part 322 is realized.

[0054] In other alternative embodiments, if the differential design of the light shielding angles on both sides of the second light shielding part 322 is not required, the included angle between the first surface 3221 and the second surface 3222 and the substrate layer 1 can also be set to 90°.

[0055] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0056] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A 360° privacy film, characterized by, The 360° privacy film comprises a substrate layer (1) and a privacy layer (3) arranged in a stack, the privacy layer (3) comprises a plurality of light transmission structures (31) arranged at intervals along a first direction, a side of the light transmission structure (31) away from the substrate layer (1) is recessed to form a plurality of grooves (311) arranged at intervals along a second direction, the depth of the groove (311) is less than the height of the light transmission structure (31), the privacy layer (3) further comprises a light shielding structure (32), the light shielding structure (32) comprises a plurality of first light shielding portions (321) arranged alternately with the plurality of light transmission structures (31) along the first direction and a plurality of second light shielding portions (322) arranged one-to-one in the plurality of grooves (311), the first direction and the second direction have an included angle and are both parallel to the substrate layer (1).

2. The 360° privacy film of claim 1, wherein, The first direction is perpendicular to the second direction.

3. The 360° privacy film of claim 1, wherein, The groove (311) penetrates the light transmission structure (31) along the first direction.

4. The 360° privacy film of claim 1, wherein, The light transmission structure (31) and the first light shielding portion (321) both extend along a straight line direction or a curved direction.

5. The 360° privacy film of claim 1, wherein, The second light shielding portion (322) comprises a first surface (3221) and a second surface (3222) arranged oppositely along the second direction, in the direction close to the substrate layer (1), the distance between the first surface (3221) and the second surface (3222) gradually decreases or remains unchanged.

6. The 360° privacy film of claim 5, wherein, The first surface (3221) and the second surface (3222) are symmetrically arranged or parallelly arranged.

7. The 360° privacy film of claim 5, wherein, The first surface (3221) is a plane; and / or, The second surface (3222) is a plane.

8. The 360° privacy film of claim 1, wherein, The substrate layer (1) is made of any one of PET film, PC film, PVC film, PU film, PI film and TPU film; and / or, The height of the substrate layer (1) ranges from 20 to 200 μm; and / or, The height of the privacy layer (3) ranges from 40 to 100 μm.

9. The 360° privacy film of claim 1, wherein, The 360° privacy film further comprises a pre-coating layer (2) arranged between the substrate layer (1) and the privacy layer (3), the pre-coating layer (2) is made of UV glue.

10. The 360° privacy film of claim 9, wherein, The height of the pre-coating layer (2) ranges from 10 to 20 μm; and / or, The light transmittance of the pre-coating layer (2) is greater than or equal to 95%.

Images