Optical barrier film with excellent peep-proof performance

Abstract

The utility model provides an optical barrier film with excellent peep-proof performance. The optical barrier film comprises a base material layer and a grating shading layer arranged on the upper portion of the base material layer in a matched mode. The grating shading layer comprises a first grating layer, a second grating layer, a third grating layer and a fourth grating layer which are arranged in sequence; the structures of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer are the same; the first grating layer comprises a grating base layer and a plurality of transverse shading strips extending upwards from the grating base layer; the transverse shading strips are arranged in parallel and are sequentially arranged from the leftmost side of the grating base layer to the rightmost side of the grating base layer; the transverse shading strips are arranged at a preset inclination angle, and the inclination included angle between the transverse shading strips and the grating base layer ranges from 45 degrees to 65 degrees, so that illegal shooting, confidential information leakage and candid shooting of displayed content can be effectively prevented in practical application, and the effect of shielding a mobile phone camera is achieved.

Description

[Technical field]

[0001] The utility model relates to the technical field of optical film products, and in particular to an optical barrier film with outstanding application effect and better anti-peeping performance. [Background Technology]

[0002] With the wider popularization of smart phones, mobile phone films have also become ancillary peripheral products well known to consumers. Mobile phone films are also called mobile phone beauty films and mobile phone protective films. The functions have evolved from the original simple anti-scratch protective films to the launch of functional protective film series, which can be divided into anti-peep films, mirror films, AR films, frosted films, high-definition films, anti-scratch protective films, 3D films, mobile phone body anti-scratch protective films, diamond films, tempered films, etc. Since mobile phone anti-peep films can prevent people around from seeing the content displayed on the mobile phone screen, they can effectively protect personal privacy. However, the current anti-peep film can only prevent the two sides of the mobile phone from peeping, but not the front of the mobile phone from peeping. When the user uses it, it cannot ensure that the surrounding wider angle range is protected from peeping. Therefore, the anti-peep effect of the existing anti-peep film still has certain defects. It is necessary to propose a technical means to solve the above problems.

[0003] For example, the utility model patent with application number CN202120321831.4 and patent name "A High-efficiency Anti-peep Film" specifically discloses a high-efficiency anti-peep film, including an adhesive layer, an anti-peep layer, an OCA glue layer and a basic layer, the anti-peep layer is arranged on the adhesive layer, the OCA glue layer is arranged on the anti-peep layer, and the basic layer is arranged on the OCA glue layer; by setting the adhesive layer, the anti-peep layer, the OCA glue layer and the basic layer, wherein a plurality of longitudinally arranged first shading strips and a plurality of transversely arranged second shading strips are arranged, the high-efficiency anti-peep film is attached to the mobile phone screen, the first shading strip has an anti-peep effect on both sides of the mobile phone, the second shading strip has an anti-peep effect on the front of the mobile phone, and the second shading strip can also play a shading effect on the diagonal direction between the front and side of the mobile phone. When the user uses it, it can prevent peeping in the surrounding 270° range.

[0004] Although the above-mentioned prior art anti-peeping film increases the anti-peeping angle range to a certain extent, it cannot achieve anti-peeping within a certain distance from the front of the mobile phone screen, and cannot meet the usage needs of consumers. [Contents of the utility model]

[0005] The problems existing in the prior art solved by this application are:

[0006] The current anti-peep film structure can only play a role in preventing peeping on the two sides of the mobile phone, but cannot play a role in preventing peeping on the front side and the front of the mobile phone. When the user uses it, it cannot guarantee the anti-peeping effect in a larger angle range around. Therefore, the anti-peeping effect of the existing anti-peep film still has certain defects. It is necessary to propose a technical means to solve the above problem.

[0007] The solution to the technical problem of the utility model is:

[0008] Provided is an optical barrier film with better anti-peeping performance, comprising a substrate layer and a grating shading layer matched and arranged on the upper part of the substrate layer; the grating shading layer comprises a first grating layer, a second grating layer, a third grating layer and a fourth grating layer arranged in sequence; the first grating layer, the second grating layer, the third grating layer and the fourth grating layer have the same structure; the first grating layer comprises a grating base layer and a plurality of transverse shading strips extending upward from the grating base layer; the transverse shading strips are arranged in parallel with each other and arranged in sequence from the leftmost side of the grating base layer to the rightmost side of the grating base layer; the transverse shading strips are arranged at a preset tilt angle, and the tilt angle range between the transverse shading strips and the grating base layer is 45-65 degrees; the transverse shading strips of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer are arranged by rotating 90 degrees in sequence to achieve 360-degree all-round shading.

[0009] Preferably, an optical barrier film with better anti-peeping performance also includes a first bonding layer, a second bonding layer, a light absorbing layer and an anti-scratch protective layer; the first bonding layer is matched with the substrate layer; the second bonding layer is matched with the fourth grating layer; the light absorbing layer and the anti-scratch protective layer are respectively matched with the second bonding layer.

[0010] Preferably, the optical barrier film has a haze of less than 10%; a transmittance of greater than 83%; a hardness of greater than 2H; and an invisibility of 60% within a distance of one meter.

[0011] Preferably, the substrate layer includes an OCA adhesive layer for bonding, a tempered glass layer bonded to the OCA adhesive layer, and a release protective layer disposed on the tempered glass layer.

[0012] Preferably, the thicknesses of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer are consistent and greater than the thickness of the substrate layer.

[0013] Preferably, the first grating layer, the second grating layer, the third grating layer and the fourth grating layer include adhesive resin and light diffusion particles; and part of the light diffusion particles protrude from the surface of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer to form a concave-convex structure.

[0014] The technical effects of solving the technical problem in this application are as follows:

[0015] Compared with the prior art, the utility model is an optical barrier film with better anti-peeping performance by simultaneously setting a substrate layer 18 and a grating shading layer matched and arranged on the upper part of the substrate layer 18, wherein the grating shading layer comprises a first grating layer 17, a second grating layer 16, a third grating layer 15 and a fourth grating layer 14 arranged in sequence, wherein the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 have the same structure, wherein the first grating layer 17 comprises a grating base layer 171 and a plurality of transverse shading strips 172 extending upward from the grating base layer 171, wherein the transverse shading strips 172 are arranged in parallel with each other, and the grating ... The leftmost side of the grating base layer 171 is arranged in sequence to the rightmost side of the grating base layer 171, and the transverse shading strip 172 is set at a preset inclination angle, and the inclination angle range of the transverse shading strip 172 and the grating base layer 171 is 45-65 degrees. The transverse shading strips 172 of the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 are rotated 90 degrees in sequence to achieve 360-degree all-round shading. In practical applications, it can effectively prevent illegal shooting, prevent the leakage of confidential information, and prevent the secretly photographed displayed content, so as to achieve the effect of shielding the mobile phone camera, especially at a certain distance from the front to prevent peeping. [Drawings]

[0016] Figure 1 It is a schematic diagram of the layered structure of an optical barrier film with excellent anti-peeping performance of the utility model.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the first grating layer in an optical barrier film with better anti-peeping performance of the utility model.

[0018] In the figure:

[0019] Anti-scratch protection layer 11; light absorption layer 12; second bonding layer 13; fourth grating layer 14; third grating layer 15; second grating layer 16; first grating layer 17; grating base layer 171; transverse shading strip 172; substrate layer 18; first bonding layer 19. [Specific implementation method]

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit this utility model.

[0021] See also Figure 1 and Figure 2The utility model provides an optical barrier film 1 with better anti-peeping performance, comprising a substrate layer 18 and a grating light-shielding layer matched and arranged on the upper part of the substrate layer 18; the grating light-shielding layer comprises a first grating layer 17, a second grating layer 16, a third grating layer 15 and a fourth grating layer 14 arranged in sequence; the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 have the same structure; the first grating layer 17 comprises a grating base layer 171 and a plurality of transverse strips extending upward from the grating base layer 171. Shading strips 172; the transverse shading strips 172 are arranged in parallel with each other, and are arranged from the leftmost side of the grating base layer 171 to the rightmost side of the grating base layer 171 in sequence; the transverse shading strips 172 are arranged at a preset inclination angle, and the inclination angle range between the transverse shading strips 172 and the grating base layer 171 is 45-65 degrees; the transverse shading strips 172 of the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 are rotated 90 degrees in sequence to achieve 360-degree all-round shading.

[0022] The present application simultaneously sets a substrate layer 18 and a grating shading layer matched to be set on the upper part of the substrate layer 18, wherein the grating shading layer comprises a first grating layer 17, a second grating layer 16, a third grating layer 15 and a fourth grating layer 14 which are sequentially arranged, wherein the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 have the same structure, wherein the first grating layer 17 comprises a grating base layer 171 and a plurality of transverse shading strips 172 extending upward from the grating base layer 171, wherein the transverse shading strips 172 are arranged in parallel with each other, and the transverse shading strips 172 are arranged in sequence from the leftmost side of the grating base layer 171. Arranged at the rightmost side of the grating base layer 171, the transverse shading strip 172 is set at a preset tilt angle, and the tilt angle range of the transverse shading strip 172 and the grating base layer 171 is 45-65 degrees. The transverse shading strips 172 of the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 are rotated 90 degrees in sequence to achieve 360-degree all-round shading. In practical applications, it can effectively prevent illegal photography, prevent the leakage of confidential information, and prevent the secretly photographed displayed content, so as to achieve the effect of shielding the mobile phone camera, especially at a certain distance from the front to prevent peeping.

[0023] In some other embodiments, an optical barrier film 1 with better anti-peeping performance also includes a first bonding layer 19, a second bonding layer 13, a light absorbing layer 12 and an anti-scratch protective layer 11; the first bonding layer 19 is matched with the substrate layer 18; the second bonding layer 13 is matched with the fourth grating layer 14; the light absorbing layer 12 and the anti-scratch protective layer 11 are respectively matched with the second bonding layer 13.

[0024] The optical barrier film 1 has a haze of less than 10%, a transmittance of greater than 83%, a hardness of greater than 2H, and an invisibility of 60% within a distance of one meter.

[0025] The greater the haze, the lower the gloss and transparency of the film, especially the imaging quality.

[0026] The substrate layer 18 includes an OCA adhesive layer for bonding, a tempered glass layer bonded to the OCA adhesive layer, and a release protective layer disposed on the tempered glass layer.

[0027] The thicknesses of the first grating layer 17 , the second grating layer 16 , the third grating layer 15 and the fourth grating layer 14 are consistent and greater than the thickness of the substrate layer 18 .

[0028] The first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 include adhesive resin and light diffusion particles; and part of the light diffusion particles protrude from the surface of the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 to form a concave-convex structure.

[0029] In terms of technical effects, the technical solution of this application can better protect personal data and company data, prevent illegal filming, prevent the leakage of confidential information, and reduce company losses.

[0030] When using a privacy film, even if the data displayed on the monitor screen is photographed with a mobile (cell phone) camera or a digital camera, the side and front contents cannot be confirmed.

[0031] It is preferred to use a thin film method, cut according to the display size and use it directly.

[0032] If the film method is difficult, plastic materials can also be used, but if the fabric is thicker, it can be in sheet form.

[0033] Application areas include design centers, bundle monitors (BundleMonitor), including government offices.

[0034] Conventional privacy films can only protect against peep at a certain angle from the side, but the barrier film of the present application can also protect against peep at a certain distance from the front of the screen when used, that is, it can also protect against peep after taking pictures with a mobile phone or camera;

[0035] The technical effects of solving the technical problem in this application are as follows:

[0036] Compared with the prior art, the utility model provides an optical barrier film 1 with better anti-peeping performance by simultaneously providing a substrate layer 18 and a grating shading layer matched and arranged on the upper part of the substrate layer 18, wherein the grating shading layer comprises a first grating layer 17, a second grating layer 16, a third grating layer 15 and a fourth grating layer 14 arranged in sequence, wherein the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 have the same structure, wherein the first grating layer 17 comprises a grating base layer 171 and a plurality of transverse shading strips 172 extending upward from the grating base layer 171, wherein the transverse shading strips 172 are arranged in parallel with each other, and the grating ... The leftmost side of the grating base layer 171 is arranged in sequence to the rightmost side of the grating base layer 171, and the transverse shading strip 172 is set at a preset inclination angle, and the inclination angle range of the transverse shading strip 172 and the grating base layer 171 is 45-65 degrees. The transverse shading strips 172 of the first grating layer 17, the second grating layer 16, the third grating layer 15 and the fourth grating layer 14 are rotated 90 degrees in sequence to achieve 360-degree all-round shading. In practical applications, it can effectively prevent illegal shooting, prevent the leakage of confidential information, and prevent the secretly photographed displayed content, so as to achieve the effect of shielding the mobile phone camera, especially at a certain distance from the front to prevent peeping.

[0037] The above-described implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. An optical barrier film with excellent anti-peeping performance, characterized in that: It comprises a substrate layer and a grating shading layer matched and arranged on the upper part of the substrate layer; the grating shading layer comprises a first grating layer, a second grating layer, a third grating layer and a fourth grating layer arranged in sequence; the first grating layer, the second grating layer, the third grating layer and the fourth grating layer have the same structure; the first grating layer comprises a grating base layer and a plurality of transverse shading strips extending upward from the grating base layer; the transverse shading strips are arranged in parallel with each other and arranged in sequence from the leftmost side of the grating base layer to the rightmost side of the grating base layer; the transverse shading strips are arranged at a preset inclination angle, and the inclination angle range between the transverse shading strips and the grating base layer is 45-65 degrees; the transverse shading strips of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer are arranged by rotating 90 degrees in sequence to achieve 360-degree all-round shading.

2. The optical barrier film with better anti-peeping performance according to claim 1, characterized in that: It also includes a first bonding layer, a second bonding layer, a light absorbing layer and an anti-scratch protective layer; the first bonding layer is matched with the substrate layer; the second bonding layer is matched with the fourth grating layer; the light absorbing layer and the anti-scratch protective layer are matched with the second bonding layer respectively.

3. The optical barrier film with excellent privacy protection performance according to claim 1, characterized in that: The optical barrier film has a haze of less than 10%, a transmittance of greater than 83%, a hardness of greater than 2H, and an invisibility of 60% within a distance of one meter.

4. An optical barrier film with better privacy protection performance according to any one of claims 1 to 3, characterized in that: The substrate layer includes an OCA adhesive layer for bonding, a tempered glass layer bonded to the OCA adhesive layer, and a release protective layer arranged on the tempered glass layer.

5. The optical barrier film with better privacy protection performance as claimed in claim 1, characterized in that: The thicknesses of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer are consistent and greater than the thickness of the substrate layer.

6. The optical barrier film with better privacy protection performance as claimed in claim 1, characterized in that: The first grating layer, the second grating layer, the third grating layer and the fourth grating layer include adhesive resin and light diffusion particles; and part of the light diffusion particles protrude from the surface of the first grating layer, the second grating layer, the third grating layer and the fourth grating layer to form a concave-convex structure.

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