Film for screen

Abstract

The utility model discloses a film for a screen, and relates to the technical field of films for screens. The film for the screen comprises a peep-proof layer, a brightening layer and an anti-dazzle layer, wherein the peep-proof layer, the brightening layer and the anti-dazzle layer are sequentially arranged from top to bottom; wherein base material layers are respectively arranged between the peep-proof layer and the brightening layer and between the brightening layer and the anti-dazzle layer. According to the film for the screen, the brightening layer is additionally arranged below the peep-proof layer, so that the emergent angle and the brightness distribution of light rays are effectively controlled, scattered light rays are concentrated towards the front side, the front side brightness of the peep-proof layer is remarkably improved, the viewing angle and the brightness uniformity are improved, and the overall display effect of the screen is improved; the problems of low transmittance and poor display effect of an anti-dazzle peep-proof film in the current market are solved, and clearer and more comfortable visual experience is provided for users.

Description

Technical Field

[0001] The utility model relates to the technical field of screen films, in particular to a screen film. Background Art

[0002] In modern electronic devices, anti-glare film (AG film) is widely used on various display screens, such as monitors, laptops, car displays, tablets, and smartphones, to enhance the user's visual experience under various lighting conditions. Anti-glare film is primarily achieved by embossing the surface of a base film to create a finely textured, concave-convex structure known as the anti-glare layer. When light passes through this anti-glare layer, it scatters, softening the otherwise glaring light. This effectively reduces glare and reflections on electronic displays, while also significantly minimizing the appearance of "flicker" artifacts, thereby improving screen visibility and readability in a variety of lighting conditions.

[0003] On the other hand, with growing awareness of information security and personal privacy, privacy filters are becoming increasingly common in electronic devices. Privacy filters typically achieve their privacy protection through a parallel array of grating structures. This structure intercepts light at specific angles, transforming the display's wide viewing angle into a narrow one. This ensures that screen information is invisible from the sides, effectively protecting trade secrets and personal privacy. Whether in the office, on the road, in public, or anywhere else, users can freely use electronic products such as computers and mobile phones without worrying about information leaks.

[0004] However, although there is a screen film on the market that has both anti-glare and anti-peeping functions, this film has an overall dark color and greatly reduced transmittance due to the simultaneous superposition of an anti-glare layer and an anti-peeping layer. Compared with general screen films, its display effect is significantly worse. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a screen film.

[0006] The utility model discloses a screen film, comprising an anti-peeping layer, a brightness enhancing layer and an anti-glare layer, wherein the anti-peeping layer, the brightness enhancing layer and the anti-glare layer are arranged in sequence from top to bottom; wherein a substrate layer is respectively provided between the anti-peeping layer and the brightness enhancing layer, and between the brightness enhancing layer and the anti-glare layer.

[0007] According to one embodiment of the present invention, there are two brightness enhancing layers, which are arranged between the anti-peep layer and the anti-glare layer, and a substrate layer is provided between the two brightness enhancing layers.

[0008] According to one embodiment of the present invention, the brightness enhancement layer includes a plurality of brightness enhancement units, each of which is a long strip structure and is continuously arranged along the length direction of the screen film.

[0009] According to one embodiment of the present invention, the cross-section of the brightness enhancement unit in the thickness direction is triangular, and the top edge of the brightness enhancement unit faces the privacy protection layer.

[0010] According to one embodiment of the present invention, the top edge of the brightness enhancement unit is arranged in a wavy line in the thickness direction, and the difference D between the maximum thickness and the minimum thickness of the brightness enhancement unit is 增亮 0.8±0.2μm.

[0011] According to one embodiment of the present invention, the length L of the brightness enhancement unit is 增亮 The width of the brightening unit is 14 to 75 μm. 增亮 The triangle is an isosceles triangle in accordance with the width of the screen film, and the vertex angle ∠β of the triangle is 90±5°.

[0012] According to one embodiment of the present invention, the brightness enhancement unit has at least one size specification, and the sizes of two adjacent brightness enhancement units are the same or different.

[0013] According to one embodiment of the present invention, the anti-peeping layer includes several anti-peeping units and light-transmitting units. The anti-peeping units are long strip structures. The anti-peeping units are arranged at intervals along the length direction of the screen film. The anti-peeping units are made of opaque materials. Light-transmitting materials are filled between two adjacent anti-peeping units to form light-transmitting units.

[0014] According to one embodiment of the present invention, the anti-peeping layer includes several anti-peeping units and light-transmitting units. The anti-peeping units are long strip structures and are arranged in a grid shape. The anti-peeping units are made of opaque materials, and the gaps between the anti-peeping units are filled with light-transmitting materials to form light-transmitting units.

[0015] According to one embodiment of the present invention, the anti-glare layer includes a plurality of first protrusions and second protrusions, which are evenly distributed on the surface of the substrate layer away from the anti-peeping layer, wherein the diameter of the first protrusion is larger than the diameter of the second protrusion.

[0016] Compared with the prior art, the screen film of the present invention has the following advantages:

[0017] The screen film of this utility model effectively controls the emission angle and brightness distribution of light by adding a brightening layer under the anti-peep layer, so that the scattered light is concentrated to the front, which significantly improves the front brightness of the anti-peep layer. It not only improves the viewing angle and brightness uniformity, but also improves the overall display effect of the screen, and solves the problems of low transmittance and poor display effect of anti-glare and anti-peep films on the current market, providing users with a clearer and more comfortable visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a cross-sectional view of the structure of the screen film in Example 1;

[0020] Figure 2 is a top view of the anti-peep layer in Example 1;

[0021] Figure 3 Schematic diagram of the structure of the anti-peeping unit in Example 1;

[0022] Figure 4 Schematic diagram of the structure of the brightness enhancement layer in Example 1;

[0023] Figure 5 is a side view of the brightness enhancement layer in Example 1;

[0024] Figure 6 is a top view of the anti-glare layer in Example 1;

[0025] Figure 7 This is a cross-sectional view of the structure of the screen film in Example 2;

[0026] Figure 8 This is a top view of the anti-peep layer in Example 3.

[0027] Description of reference numerals:

[0028] 100, anti-peeping layer; 110, anti-peeping unit; 120, light-transmitting unit; 200, brightness-enhancing layer; 210, brightness-enhancing unit; 211, top edge; 300, anti-glare layer; 310, first protrusion; 320, second protrusion; 400, substrate layer. DETAILED DESCRIPTION

[0029] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0030] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Example 1

[0032] This embodiment provides a screen film, which has anti-peep and anti-glare functions and is suitable for display screens such as monitors, laptops, car displays, tablet computers and smart phones.

[0033] See also Figure 1 The screen film includes an anti-peeping layer 100, a base material layer 400, a brightness enhancing layer 200, a base material layer 400, and an anti-glare layer 300, and the anti-peeping layer 100, the base material layer 400, the brightness enhancing layer 200, the base material layer 400, and the anti-glare layer 300 are arranged in order from top to bottom. It should be noted that since the structure on the screen film is a microstructure, the attached figure shows a section of the screen film. Figure 1 The display shows a section of the screen film cut along the length direction, i.e. Figure 1 Shown is a cross section of the screen film in the thickness direction along the length direction.

[0034] In this embodiment, a substrate layer 400 is provided between two adjacent functional film layers. The substrate layer 400 is provided to enhance the structural strength of the screen film and prevent the screen film from bending or deforming during use. 基材 The thickness of the substrate layer 400 is 25 to 188 μm and is made of materials such as polyethylene terephthalate (PET), thermoplastic polyurethane (TPU), polycarbonate (PC), and polyvinyl chloride (PVC). The substrate layer 400 made of these materials has a high light transmittance to minimize the influence of the substrate layer 400 on the functional film layer.

[0035] See also Figures 1 to 3 The anti-peeping layer 100 includes several anti-peeping units 110 and light-transmitting units 120. The anti-peeping units 110 are arranged along the length L of the screen film. 膜The privacy protection units 110 are arranged in a spaced manner in the direction of the shielding element 110, and are made of opaque material. Translucent material is filled between two adjacent privacy protection units 110 to form a transparent unit 120. Furthermore, a single privacy protection unit 110 is a long strip structure, and its cross section in the thickness direction is an isosceles trapezoid, a rectangle, or a combination of an isosceles trapezoid and a rectangle. The upper base angle ∠α of the cross section of a single privacy protection unit 110 in the thickness direction is 90 to 135 degrees. In a single privacy protection unit 110, its length L 防窥 5~500μm, width W 防窥 The thickness H is consistent with the width of the screen film. 防窥 10~500μm.

[0036] See also Figure 1 、 4 5. The brightness enhancement layer 200 includes a plurality of brightness enhancement units 210. The brightness enhancement units 210 are arranged along the length L of the screen film. 膜 The single brightening unit 210 is a long strip structure, and its cross section in the thickness direction is a triangle. The top edge 211 of the single brightening unit 210 faces the anti-peep layer 100, and the triangle is used to focus the light in one direction to achieve a focusing brightening effect. The length L of the single brightening unit 210 is 增亮 The width W of a single brightness enhancement unit 210 is 14-75 μm. 增亮 The width of the screen film is consistent; the cross section of a single brightness enhancement unit 210 in the thickness direction is an isosceles triangle, and the vertex angle ∠β of the isosceles triangle is 90±5°, achieving better light control and brightness enhancement effects, and ∠β=90° is the most preferred, which can achieve the best optical effect. Furthermore, in a single brightness enhancement unit 210, its top edge 211 is arranged in a wavy line in the thickness direction, and the difference between its maximum thickness and minimum thickness D 增亮 The top edge 211 utilizes metasurface light refraction technology to precisely control the amplitude of light waves. Optionally, the brightness enhancement layer 200 may include brightness enhancement units 210 of one or more sizes. The sizes of two adjacent brightness enhancement units 210 may be the same or different. Different arrangements can produce different brightness enhancement effects.

[0037] See also Figure 1 and 6The anti-glare layer 300 includes a plurality of first and second protrusions 310 and 320, which are evenly distributed on the surface of the substrate layer 400 away from the privacy protection layer 100. The first and second protrusions 310 and 320 are spherical in shape, with diameters of 100 to 500 μm and 10 to 100 μm, respectively. The heights of the first and second protrusions 310 and 320 are both 5 to 10 μm, and the first and second protrusions 310 and 320 each account for 10 to 50% of the area of ​​the substrate layer 400. This anti-glare layer utilizes first and second protrusions of varying diameters and heights to create diffuse reflection, effectively reducing reflected light and achieving an anti-glare effect. It also reduces the thickness of the anti-glare layer, thereby reducing the overall thickness of the screen film. It also modifies the roughness and haze of the film, improving the optical performance and surface properties of the anti-glare layer.

[0038] In summary, this screen film combines the comprehensive advantages of anti-peep layer, anti-glare layer and brightening layer, which not only ensures the privacy protection and anti-glare effect of the screen, but also significantly improves the transmittance and improves the display effect.

[0039] Specifically, the anti-privacy layer effectively limits the screen's viewing angle, protecting user privacy while also providing screen protection features such as scratch resistance, explosion resistance, and fingerprint resistance. The anti-glare layer 300 scatters light through its surface structure, reducing specular reflections, lowering glare, and improving contrast. This allows for clear viewing even in bright sunlight, while also increasing viewing angles, ensuring a superior viewing experience from a variety of viewing angles.

[0040] In order to solve the problems of low transmittance and poor display effect of anti-glare and anti-peeping films on the current market, this screen film adds a brightening layer under the anti-peeping layer. The brightening unit of the brightening layer effectively controls the emission angle and brightness distribution of light, so that the scattered light is concentrated to the front, which significantly improves the front brightness of the anti-peeping layer. It not only improves the viewing angle and brightness uniformity, but also improves the overall display effect of the screen, providing users with a clearer and more comfortable visual experience.

[0041] Example 2

[0042] Compared with the first embodiment, the screen film of the second embodiment has two brightness enhancement layers 200. Figure 7 As shown, two brightness enhancement layers 200 are arranged between the anti-peep layer 100 and the anti-glare layer 300, and a substrate layer 400 is provided between the two brightness enhancement layers 200. The provision of two brightness enhancement layers 200 can further enhance the light focusing effect and the overall display brightness.

[0043] Furthermore, the arrangement direction of the brightness enhancing units 210 of one brightness enhancing layer 200 is 90 degrees to the arrangement direction of the brightness enhancing units 210 of the other brightness enhancing layer 200, thereby reducing light interference between the two brightness enhancing layers, thereby uniformly improving display brightness.

[0044] The rest of the structure is the same as that of the first embodiment.

[0045] Example 3

[0046] Compared with the first or second embodiment, in the screen film of the third embodiment, the privacy protection units 110 of the privacy protection layer 100 are arranged in a grid shape, such as Figure 8 The privacy protection units 110 are made of opaque material, and the gaps between the privacy protection units 110 are filled with translucent material to form translucent units 120. By providing a grid-like privacy protection unit 110, the viewing angle and privacy protection direction are further limited, thereby improving the privacy protection effect.

[0047] The length L of a single privacy protection unit 110 is 防窥 5~500μm, thickness H 防窥 The width of a single privacy protection unit 110 is adapted to the size of the screen film. Specifically, the width W of the privacy protection unit 110 extending along the width of the screen film is 防窥 The width W of the privacy protection unit 110 extending along the length of the screen film is adapted to the width of the screen film. 防窥 Adapt to the length of the screen film.

[0048] The remaining structures are the same as those of the first or second embodiment.

[0049] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A screen film, characterized in that: The invention comprises an anti-peeping layer (100), a brightness enhancing layer (200) and an anti-glare layer (300), wherein the anti-peeping layer (100), the brightness enhancing layer (200) and the anti-glare layer (300) are arranged in sequence from top to bottom; wherein a substrate layer (400) is provided between the anti-peeping layer (100) and the brightness enhancing layer (200) and between the brightness enhancing layer (200) and the anti-glare layer (300), respectively.

2. The screen film according to claim 1, characterized in that The number of the brightness enhancing layers (200) is two, the two brightness enhancing layers (200) are arranged between the anti-peep layer (100) and the anti-glare layer (300), and the base material layer (400) is provided between the two brightness enhancing layers (200).

3. The screen film according to claim 1, wherein The brightness enhancement layer (200) comprises a plurality of brightness enhancement units (210), wherein the brightness enhancement units (210) are in a long strip structure and are continuously arranged along the length direction of the screen film.

4. The screen film according to claim 3, characterized in that The cross-section of the brightness enhancement unit (210) in the thickness direction is triangular, and the top edge (211) of the brightness enhancement unit (210) faces the anti-peep layer (100).

5. The screen film according to claim 4, characterized in that: The top edge (211) of the brightness enhancement unit (210) is arranged in a wavy line in the thickness direction, and the difference D between the maximum thickness and the minimum thickness of the brightness enhancement unit (210) is 增亮 0.8±0.2μm.

6. The screen film according to claim 4, characterized in that The length L of the brightening unit (210) 增亮 is 14-75 μm, and the width W of the brightness enhancement unit (210) is 增亮 In accordance with the width of the screen film, the triangle is an isosceles triangle, and the vertex angle ∠β of the triangle is 90±5°.

7. The screen film according to claim 3, wherein: The brightness enhancement unit (210) has at least one size specification, and the size specifications of two adjacent brightness enhancement units (210) are the same or different.

8. The screen film according to any one of claims 1 to 7, characterized in that: The anti-peep layer (100) comprises a plurality of anti-peep units (110) and light-transmitting units (120). The anti-peep units (110) are long strip structures. The anti-peep units (110) are arranged at intervals along the length direction of the screen film. The anti-peep units (110) are made of opaque material. Light-transmitting material is filled between two adjacent anti-peep units (110) to form the light-transmitting units (120).

9. The screen film according to any one of claims 1 to 7, characterized in that: The anti-peeping layer (100) comprises a plurality of anti-peeping units (110) and light-transmitting units (120), wherein the anti-peeping units (110) are of a long strip structure and are arranged in a grid shape. The anti-peeping units (110) are made of a light-proof material, and the gaps between the anti-peeping units (110) are filled with a light-transmitting material to form the light-transmitting units (120).

10. The screen film according to any one of claims 1 to 7, characterized in that: The anti-glare layer (300) comprises a plurality of first protrusions (310) and second protrusions (320), wherein the first protrusions (310) and the second protrusions (320) are evenly distributed on the surface of the substrate layer (400) away from the anti-peep layer (100), wherein the diameter of the first protrusions (310) is greater than the diameter of the second protrusions (320).

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