CN219429924U - Peep-proof protective film - Google Patents

Abstract

The utility model discloses a peep-proof protective film, which comprises a protective layer, an optical adhesive layer attached to one side of the protective layer, a peep-proof layer attached to one side of the optical adhesive layer far away from the protective layer, and an adhesive layer attached to one side of the peep-proof layer far away from the optical adhesive layer, wherein the peep-proof layer comprises a bearing layer attached to the adhesive layer and a grid layer positioned between the bearing layer and the optical adhesive layer, and the thickness of the grid layer is 0.065-0.095 mm. The thickness of the grating layer is only 0.065-0.095 mm, the thickness is relatively small, and the overall thickness of the peep-proof layer and the peep-proof protective film can be correspondingly reduced, so that the risks of insensitive touch, hand scraping at the edge and eye fatigue caused by overlarge thickness are reduced.

Description

Peep-proof protective film

Technical Field

The utility model relates to the technical field of protective films, in particular to an anti-peeping protective film.

Background

In recent years, with rapid development of electronic products, mobile terminals such as mobile phones have become necessary in daily life of people, and privacy stored in mobile phones has been increased, so that the visibility angle of a mobile phone screen is larger, privacy leakage of people is easy to be caused, and peep-proof films can be adhered to mobile phones by many people.

The thickness of the peep-proof layer of the existing peep-proof film can reach 0.15-0.215 mm, the total thickness of the peep-proof film after the glass is attached can reach more than 0.6mm, the problems of insensitivity in touch control and hand scraping at the edge can be caused due to overlarge thickness, meanwhile, the transmittance of light rays can be reduced, and eye fatigue is easy to cause.

Disclosure of Invention

In view of the above, the present utility model aims to provide an improved privacy protection film to solve at least one of the above problems.

The utility model provides a peep-proof protection film, includes the protective layer, pastes to locate optical glue layer on one side of the protective layer, pastes to locate optical glue layer is kept away from peep-proof layer on one side of the protective layer and paste to locate peep-proof layer is kept away from adhesive layer on one side of the optical glue layer, peep-proof layer include with the loading layer of adhesive layer laminating with be located loading layer with grating layer between the optical glue layer, the thickness of grating layer is 0.065mm ~ 0.095mm.

In some embodiments, the grid layer includes a plurality of raised stripes spaced apart.

In some embodiments, the spacing between adjacent raised stripes near the end of the protective layer is greater than the spacing between adjacent raised stripes far from the end of the protective layer.

In some embodiments, in the arrangement direction of the raised stripes, a dimension of the raised stripes near an end of the protective layer is smaller than a dimension of the raised stripes far from the end of the protective layer.

In some embodiments, the height of the raised strips is 0.065mm to 0.095mm, and the spacing between two adjacent raised strips is 0.05mm to 0.08mm.

In some embodiments, a plurality of the raised stripes are uniformly spaced apart and parallel to one another.

In some embodiments, the carrier layer has a square shape, the carrier layer has a transverse side and a longitudinal side perpendicular to each other, and the raised stripe is disposed obliquely with respect to the transverse side and the longitudinal side.

In some embodiments, the grid layer is a plurality of spaced raised stripes formed by die rolling from a resin and color paste applied to the surface of the carrier layer.

In some embodiments, the protective layer has a thickness of 0.06mm to 0.08mm.

In some embodiments, the thickness of the privacy protection film is 0.195mm to 0.245mm.

The thickness of the grating layer is only 0.065-0.095 mm, and the thickness is relatively small, so that the overall thickness of the anti-peeping layer and the anti-peeping protective film can be correspondingly reduced, and the risks of insensitive touch, hand scraping at the edge and eye fatigue caused by overlarge thickness are reduced.

Drawings

Fig. 1 is an exploded view of a peep-proof protective film according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an optical adhesive layer, a peep-proof layer and an adhesive layer according to an embodiment of the present utility model;

fig. 3 is a top view of a privacy layer according to an embodiment of the present utility model;

fig. 4 is a schematic diagram illustrating light entering the peep-proof layer according to an embodiment of the utility model.

In the figure: 10. a peep-proof protective film; 12. an adhesive layer; 14. an anti-peeping layer; 16. a protective layer; 18. a bearing layer; 20. a grid layer; 22. raised stripes.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

It should be noted that, in the embodiments of the present utility model, all directional indicators (such as up, down, left, right, front, back, inner, outer, top, bottom … …) are merely used to explain the relative positional relationship between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators correspondingly change.

It will also be understood that when an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1 to 4, a peep-proof protective film 10 according to an embodiment of the utility model includes an adhesive layer 12, a peep-proof layer 14, an optical adhesive layer 16 and a protective layer 17, wherein the adhesive layer 12 has an adhesive property for being adhered to a screen of an electronic device such as a mobile phone, and the protective layer 17 is used for protecting the screen. The optical adhesive layer 16 is attached to one side of the protective layer 17, the peep-proof layer 14 is attached to one side of the optical adhesive layer 16 away from the protective layer 17, that is, the optical adhesive layer 16 bonds the peep-proof layer 14 and the protective layer 17 together, and the bonding layer 12 is attached to one side of the peep-proof layer 14 away from the optical adhesive layer 16. The peep-proof layer 14 has a peep-proof effect, so that the risk of privacy disclosure of a user can be reduced after the peep-proof protective film 10 is attached to the screen of the electronic device.

In one embodiment, a releasable release layer is attached to the outer side of the adhesive layer 12, i.e., the side away from the privacy layer 14, to protect the adhesion of the adhesive layer 12.

The peep-proof layer 14 comprises a bearing layer 18 and a grating layer 20 fixed on the bearing layer 18, wherein the bearing layer 18 is fixedly attached to one side of the bonding layer 12, which is close to the optical adhesive layer 16, and the grating layer 20 is positioned between the bearing layer 18 and the optical adhesive layer 16 and is fixedly attached to the optical adhesive layer 16. The grating layer 20 has a peep-proof effect, and the carrier layer 18 is used for supporting the grating layer 20.

In an embodiment, the thickness of the grating layer 20 is 0.065 mm-0.095 mm, and the thickness thereof is relatively low, so that the thickness of the peep-proof layer 14 can be reduced, and the overall thickness of the peep-proof protective film 10 can be correspondingly reduced, thereby reducing the risks of insensitive touch, hand scraping at the edge and eye fatigue caused by excessive thickness.

In one embodiment, the grid layer 20 includes a plurality of raised stripes 22 secured to the carrier layer 18 and spaced apart.

The grid layer 20 is a plurality of spaced raised stripes 22 formed by die rolling from a resin and color paste applied to the surface of the carrier layer 18. The surface of the mold is provided with a plurality of grooves, so that resin and color paste are mixed and then coated on the surface of the bearing layer 18, then the mixture of the resin and the color paste is rolled by the mold, a plurality of raised strips can be formed on the bearing layer 18 by utilizing the grooves on the mu average surface, and the formed raised strips are solidified to form the grid layer 20 by means of light irradiation solidification or heating solidification and the like. Since the grating layer 20 is formed by rolling the mold, the height of the grating layer 20 can be reduced by reducing the depth of the groove on the surface of the mold, thereby reducing the overall thickness of the peep-proof protective film 10.

In one embodiment, the plurality of protruding stripes 22 are arranged at intervals and parallel to each other, and the distance between two adjacent protruding stripes 22 in the arrangement direction is 0.02 mm-0.05 mm, and the height of the protruding stripe is 0.065 mm-0.095 mm. The spacing between the raised stripes 22 is in the range of 0.02 mm-0.05 mm, and the height of the raised stripes 22 is in the range of 0.065 mm-0.095 mm, so that the thickness of the peep-proof layer 14 is reduced without affecting the peep-proof angle. It will be appreciated that the spacing of adjacent raised stripes 22 may also be adjusted by varying the spacing of the grooves of the mold surface.

The carrier layer 18 has a square shape, the carrier layer 18 has transverse sides and longitudinal sides perpendicular to each other, and the raised stripes 22 are disposed obliquely with respect to the transverse sides and longitudinal sides. The specific angle of inclination to the longitudinal side edges is not limited, for example, 45 ° or 60 °.

In one embodiment, the spacing between adjacent raised stripes 22 near the end of the optical adhesive layer 16 is greater than the spacing between adjacent raised stripes 22 away from the end of the optical adhesive layer 16, i.e., the dimension of the raised stripes 22 near the end of the optical adhesive layer 16 is smaller than the dimension of the raised stripes 22 away from the end of the optical adhesive layer 16 in the direction of alignment of the raised stripes 22. External light first passes through the optical adhesive layer 16, then passes through the gaps between the raised stripes 22, and finally passes through the carrier layer 18 and the adhesive layer 12 to act on the screen of the electronic device. The distance between the adjacent convex stripes 22 near one end of the optical adhesive layer 16 is larger, so that more light can enter the distance between the convex stripes 22, the throughput of the light is increased, the effect of increasing the light transmittance is achieved, and the risk of eye fatigue of a user is further reduced.

The specific shape of the raised stripe 22 is not limited, in this embodiment, the raised stripe 22 is a trapezoid with a non-right angle, and the dimension of the raised stripe 22 in the arrangement direction thereof increases gradually from top to bottom (i.e. the direction from the optical adhesive layer 16 to the carrier layer 18), so that the distance between two adjacent raised stripes 22 extends from the optical adhesive layer 16 in a gradually decreasing manner toward the carrier layer 18, and thus the dimension of the distance near one end of the optical adhesive layer 16 is maximized, so that more light enters.

The thickness of the grating layer 20 is in the range of 0.065 mm-0.095 mm, so that the overall thickness of the peep-proof protective film 10 is reduced, and meanwhile, the raised stripes 22 are trapezoid, so that the distance between two adjacent raised stripes 22 is the largest in a short dimension close to the optical adhesive layer 16, more light enters, and finally, the transmittance of the light is improved from 60% to 90%.

In an embodiment, the supporting layer 18 is a substrate layer made of polyethylene terephthalate (i.e. PET), the thickness of the supporting layer 18 is 0.035mm, and the overall thickness of the peep-proof layer 14 is 0.1 mm-0.13 mm, so that the overall thickness of the peep-proof layer 14 is small, so as to reduce the overall thickness of the peep-proof protective film 10.

The optical cement layer 16 is a cement layer made of optical cement (namely OCA) through a direct coating process, and the thickness of the optical cement layer 16 is 0.06-0.08 mm. Compared with the attaching process, the direct coating process can process a thinner adhesive layer, so that the overall thickness of the peep-proof protective film 10 is reduced, and the flatness of the optical adhesive layer 16 can be ensured by coating the optical adhesive with the thickness of 0.06-0.08 mm, and the adhesive force is better.

The adhesive layer 12 is a silica gel layer made of silica gel, and the thickness of the adhesive layer 12 is 0.035mm, so that the whole thickness of the peep-proof protective film 10 is 0.195 mm-0.245 mm.

According to the peep-proof protective film provided by the utility model, the grating layer is a plurality of mutually-spaced raised stripes formed by rolling resin and color paste coated on the surface of the bearing layer through the die, the height of the grating layer can be reduced by reducing the depth of the groove on the surface of the die, so that the thickness of the grating layer can reach 0.065-0.095 mm, the overall thickness of the peep-proof protective film is 0.195-0.245 mm, and the overall thickness of the peep-proof protective film is reduced, so that the risks of insensitive touch control, hand scraping at the edge and eye fatigue caused by overlarge thickness are reduced; moreover, the distance between the adjacent convex stripes and one side of the optical adhesive layer is larger, so that more light can enter the distance between the convex stripes, the light throughput is increased, the effect of increasing the light transmittance is achieved, the light transmittance is improved from original 60% to 90%, and the risk of eye fatigue of a user is further reduced.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (10)

1. The utility model provides a peep-proof protection film, includes the protective layer, pastes to locate optical glue layer on one side of the protective layer, pastes to locate optical glue layer is kept away from peep-proof layer on one side of the protective layer and paste to locate peep-proof layer is kept away from adhesive layer on one side of the optical glue layer, its characterized in that, peep-proof layer include with the loading layer of adhesive layer laminating with be located loading layer with grating layer between the optical glue layer, the thickness of grating layer is 0.065mm ~ 0.095mm.

2. The privacy protecting film of claim 1, wherein the grid layer comprises a plurality of raised stripes spaced apart.

3. The privacy protecting film of claim 2, wherein the spacing between adjacent ones of the raised stripes near the end of the protective layer is greater than the spacing between adjacent ones of the raised stripes far from the end of the protective layer.

4. The privacy protecting film according to claim 2, wherein the dimension of the raised streaks near the end of the protecting layer is smaller than the dimension of the raised streaks far from the end of the protecting layer in the arrangement direction of the raised streaks.

5. The privacy protecting film according to claim 2, wherein the height of the raised stripes is 0.065mm to 0.095mm, and the interval between two adjacent raised stripes is 0.05mm to 0.08mm.

6. The privacy protecting film of claim 2, wherein the plurality of raised stripes are uniformly spaced apart and parallel to one another.

7. The privacy protecting film of claim 2, wherein the carrier layer has a square shape, the carrier layer has a transverse side and a longitudinal side that are perpendicular to each other, and the raised stripes are disposed obliquely with respect to the transverse side and the longitudinal side.

8. The privacy protecting film of claim 1, wherein the grid layer is a plurality of spaced raised stripes formed by roll forming a resin and a color paste applied to the surface of the carrier layer through a die.

9. The privacy protecting film of claim 1, wherein the protective layer has a thickness of 0.06mm to 0.08mm.

10. The privacy protecting film of any one of claims 1-9, wherein the privacy protecting film has a thickness of 0.195mm to 0.245mm.