Anti-dazzle peep-proof polaroid

Abstract

The utility model discloses an anti-dazzle peep-proof polaroid, and relates to the technical field of polaroids. The anti-dazzle peep-proof polaroid comprises an anti-dazzle layer, a peep-proof layer and a polarizing layer, the anti-dazzle layer is arranged above the peep-proof layer, the peep-proof layer is arranged above the polarizing layer, and a base material layer is arranged between the anti-dazzle layer and the peep-proof layer; wherein the peep-proof layer comprises a plurality of peep-proof units and light-transmitting units, and the upper base angle alpha of the section, in the thickness direction, of each peep-proof unit is 90-135 degrees. According to the anti-dazzle anti-peep polaroid, the anti-peep layer and the anti-dazzle layer are additionally arranged, the display effect is improved, and the privacy protection and anti-dazzle effect of a screen are ensured. Wherein the peep-proof layer effectively limits the visual angle of the screen, so that the privacy of a user is protected; and the anti-glare layer scatters light through a surface structure, so that specular reflection is reduced, glare is reduced, the contrast ratio is improved, and screen content is also clearly visible in a strong light environment. In addition, the protective film also has screen protection functions such as scratch resistance, explosion resistance, fingerprint resistance and the like, and meets diversified requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of polarizers, and in particular to an anti-glare and anti-peep polarizer. Background Art

[0002] In the field of liquid crystal display technology, as the mainstream device for modern information display, optimizing its performance and user experience has always been a focus of technological research and development. Polarizers play a crucial role in the construction of LCDs, controlling the polarization direction of light, thereby enabling image display and contrast adjustment. To ensure the durability and mechanical strength of polarizers during use, they are typically covered with a protective film. This protective film primarily provides physical protection, preventing the polarizer from scratches, contamination, and external damage.

[0003] However, with the continuous advancement of display technology and evolving market demands, existing protective film technology has gradually exposed its single-function limitations. Traditional protective films primarily focus on basic physical protection, but perform poorly in advanced features such as anti-glare and privacy protection. Specifically, the lack of anti-glare performance can cause reflections and glare on the screen in bright light, severely impacting the user's visual experience. Inadequate privacy protection makes the screen content easily observable to nearby observers, posing a security risk.

[0004] Furthermore, with the increasing popularity of mobile devices and portable displays, users are increasingly demanding higher quality displays, pursuing not only high resolution and color accuracy but also increased emphasis on visual comfort and information security in various usage environments. Consequently, existing single-function protective films are no longer able to meet the diverse demands of today's LCD technology development. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-glare and anti-peep polarizer.

[0006] The utility model discloses an anti-glare and anti-peeping polarizer, comprising an anti-glare layer, an anti-peeping layer and a polarizing layer, wherein the anti-glare layer is arranged above the anti-peeping layer, the anti-peeping layer is arranged above the polarizing layer, and a substrate layer is provided between the anti-glare layer and the anti-peeping layer; wherein the anti-peeping layer comprises a plurality of anti-peeping units and a light-transmitting unit, and an upper base angle ∠α of a cross section of the anti-peeping unit in the thickness direction is 90 to 135 degrees.

[0007] According to one embodiment of the present invention, the anti-peeping unit is a long strip structure, and the anti-peeping unit is along the length L of the polarizing layer. 偏光 The two anti-peeping units are arranged at intervals in the direction of each other, and a light-transmitting unit is formed between two adjacent anti-peeping units.

[0008] According to one embodiment of the present invention, the length L of the privacy protection unit is 防窥The width of the privacy protection unit is 5 to 500 μm. 防窥 The thickness of the anti-peeping unit is H, which is consistent with the width of the polarizing layer. 防窥 10~500μm.

[0009] According to one embodiment of the present invention, the anti-peeping unit is a long strip structure, the anti-peeping unit is arranged in a grid shape, the anti-peeping unit is made of opaque material, and the gaps between the anti-peeping units form light-transmitting units.

[0010] According to one embodiment of the present invention, the length L of the privacy protection unit is 防窥 The width W of the privacy protection unit extending along the width of the polarizing layer is 5 to 500 μm. 防窥 The width W of the privacy protection unit extending along the length of the polarizing layer is adapted to the width of the polarizing layer. 防窥 To match the length of the polarizing layer, the thickness of the privacy protection unit is H 防窥 10~500μm.

[0011] According to one embodiment of the present invention, the cross-section of the privacy protection unit in the thickness direction is an isosceles trapezoid, a rectangle, or a combination of an isosceles trapezoid and a rectangle.

[0012] According to one embodiment of the present invention, the anti-peeping unit is made of a light-proof material, and the light-transmitting unit is made of a light-proof material.

[0013] 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.

[0014] According to one embodiment of the present invention, the first protrusion and the second protrusion are spherical, the diameter of the first protrusion is 100-500 μm, the diameter of the second protrusion is 10-100 μm, and the thickness of the first protrusion and the second protrusion are both 5-10 μm.

[0015] According to one embodiment of the present invention, the first protrusions and the second protrusions each account for 10 to 50% of the area of the base material layer.

[0016] Compared with the prior art, the anti-glare and anti-peep polarizer of the present invention has the following advantages:

[0017] This new anti-glare and privacy-preventing polarizer film features both an anti-privacy layer and an anti-glare layer, improving display quality and ensuring both privacy and anti-glare. The anti-privacy layer effectively limits the screen's viewing angle, protecting user privacy. The anti-glare layer scatters light through its surface structure, reducing specular reflections, glare, and contrast, ensuring clear viewing even in bright sunlight. Furthermore, the film offers screen protection features such as scratch resistance, explosion resistance, and fingerprint resistance, meeting diverse needs. 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 2 is a cross-sectional view of the structure of the anti-glare and anti-peep polarizer in Example 1;

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

[0021] Figure 3 is a top view of the anti-peep layer in Example 1;

[0022] Figure 4 Schematic diagram of the structure of the anti-peeping unit in Example 1;

[0023] Figure 5 2 is a cross-sectional view of the structure of another anti-glare and anti-peep polarizer in Example 1;

[0024] Figure 6 for Figure 5 Enlarged view of area A in the middle;

[0025] Figure 7 This is a top view of the anti-peep layer in Example 2.

[0026] Description of reference numerals:

[0027] 100, anti-glare layer; 110, first protrusion; 120, second protrusion; 200, anti-peeping layer; 210, anti-peeping unit; 220, light-transmitting unit; 400, substrate layer. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] Example 1

[0031] This embodiment provides an anti-glare and anti-peep polarizer, 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.

[0032] See also Figure 1 The anti-glare and privacy-preventing polarizer includes an anti-glare layer 100, a substrate layer 400, an anti-privacy layer 200, and a polarizing layer 300. The anti-glare layer 100, the substrate layer 400, the anti-privacy layer 200, and the polarizing layer 300 are arranged in order from top to bottom. It should be noted that since the structure on the anti-glare and privacy-preventing polarizer is a microstructure and difficult to fully display, the attached figure selects and displays a section of the anti-glare and privacy-preventing polarizer, and Figure 1 The display shows this section of anti-glare and anti-peep polarizer along the length L 偏光 The cross section in the thickness direction after interception.

[0033] In this embodiment, the polarizing layer 300 adopts a conventional structure, so it will not be described in detail below. In addition, this embodiment enhances the structural strength of the anti-glare and privacy-preventing polarizer by arranging the substrate layer 400 between the anti-glare layer 100 and the privacy-preventing layer 200, thereby preventing the anti-glare and privacy-preventing polarizer 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.

[0034] See also Figure 1 and 2 The anti-glare layer 100 includes a plurality of first protrusions 110 and second protrusions 120. The first protrusions 110 and the second protrusions 120 are evenly distributed on the surface of the substrate layer 400 away from the privacy protection layer 100. The first protrusions 110 and the second protrusions 120 are spherical in shape, with a diameter of 100 to 500 μm and a diameter of 10 to 100 μm. The thickness of the first protrusions 110 and the second protrusions 120 are both 5 to 10 μm. The first protrusions 110 and the second protrusions 120 each account for 10 to 50% of the area of the substrate layer 400.

[0035] The anti-glare layer uses first and second protrusions of different diameters and heights to form diffuse reflection, which can not only effectively reduce the reflected light and achieve an anti-glare effect, but also reduce the thickness of the anti-glare layer to reduce the overall thickness of the anti-glare and anti-peep polarizer. At the same time, it can also change the roughness and haze of the film layer, thereby improving the optical performance and surface characteristics of the anti-glare layer.

[0036] See also Figure 1 、 3 4. The anti-peeping layer 200 includes a plurality of anti-peeping units 210 and a light-transmitting unit 220. The anti-peeping unit 210 extends along the length L of the polarizing layer 300. 偏光 The privacy protection layers 210 are arranged in a spaced-apart pattern, with the privacy protection layers 210 made of opaque material. Transparent material is filled between adjacent privacy protection layers 210 to form transparent layers 220. This privacy protection layer utilizes an ultra-fine louver optical structure, which transforms the screen's wide viewing angle into a narrow one, making the screen information visible from the front but invisible from the sides. This effectively prevents onlookers from peeping at the screen content and protects the user's privacy.

[0037] Furthermore, a single anti-peeping unit 210 is a long strip structure, and the upper base angle ∠α of the cross section in the thickness direction is 90 to 135 degrees. For this reason, the cross section of the single anti-peeping unit 210 in the thickness direction can be an isosceles trapezoid, a rectangle, or a combination of an isosceles trapezoid and a rectangle. This structural design can provide the film layer with a more suitable anti-peeping effect and light-emitting effect. When the upper base angle ∠α is larger, the anti-peeping effect of the film layer is better; and when the upper base angle ∠α is smaller, the light-emitting effect of the film layer is better, and the display brightness is higher. Among them, in a single anti-peeping unit 210, its length L 防窥 5~500μm, width W 防窥The thickness H is consistent with the width of the polarizing layer 300. 防窥 10~500μm.

[0038] Furthermore, when a single privacy protection unit 210 reaches a certain thickness, a high visual privacy protection effect is achieved. At this time, the cross-section of the single privacy protection unit 210 in the thickness direction is preferably a combination of an isosceles trapezoid and a rectangle, and the isosceles trapezoid part is farther away from the polarizing layer 300 than the rectangular part, such as Figure 5 and 6 This structure has both good anti-peeping effect and light extraction effect. The isosceles trapezoidal portion is used to enhance the anti-peeping effect, and its upper base angle ∠α is preferably 135 degrees. At the same time, the rectangular portion is used to reduce the area ratio of the bottom surface of the anti-peeping unit and the light-transmitting unit (i.e., the surface close to the polarizing layer 300), thereby enhancing the light extraction effect.

[0039] In summary, this anti-glare and privacy-preventing polarizer film incorporates both an anti-privacy layer and an anti-glare layer, improving display quality and ensuring both privacy and anti-glare. The anti-privacy layer effectively limits the screen's viewing angle, protecting user privacy; while the anti-glare layer scatters light through its surface structure, reducing specular reflections, lowering glare, and improving contrast, ensuring clear viewing even in bright sunlight. Furthermore, the film offers screen protection features such as scratch resistance, explosion resistance, and anti-fingerprint protection, meeting diverse needs.

[0040] Example 2

[0041] Compared with the first embodiment, in the anti-glare and anti-peeping polarizer of the second embodiment, the anti-peeping units of the anti-peeping layer are arranged in a grid shape, such as Figure 7 As shown. The privacy protection units 210 are made of opaque material, and the gaps between the privacy protection units 210 are filled with translucent material to form translucent units 220. By providing a grid-like privacy protection unit 210, the viewing angle can be further limited, so that the screen content is only visible through the front of the screen, thereby effectively improving the privacy protection effect.

[0042] The length L of a single anti-peeping unit 210 is 防窥 5~500μm, thickness H 防窥 The width of a single privacy protection unit 210 is adapted to the size of the polarizing layer 300. Specifically, the width W of the privacy protection unit 210 extending along the width of the polarizing layer is 防窥 The width W of the anti-peeping unit 210 extending along the length of the polarizing layer 300 is adapted to the width of the polarizing layer 300. 防窥 It is adapted to the length of the polarizing layer 300 .

[0043] The rest of the structure is the same as that of the first embodiment.

[0044] 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. An anti-glare and anti-peep polarizer, characterized in that: The invention comprises an anti-glare layer (100), an anti-peeping layer (200) and a polarizing layer (300), wherein the anti-glare layer (100) is arranged above the anti-peeping layer (200), the anti-peeping layer (200) is arranged above the polarizing layer (300), and a substrate layer (400) is provided between the anti-glare layer (100) and the anti-peeping layer (200); wherein the anti-peeping layer (200) comprises a plurality of anti-peeping units (210) and light-transmitting units (220), and the upper base angle ∠α of the cross section of the anti-peeping unit (210) in the thickness direction is 90 to 135 degrees.

2. The anti-glare and anti-peep polarizer according to claim 1, wherein: The anti-peeping unit (210) is a long strip structure, and the anti-peeping unit (210) is along the length L of the polarizing layer (300). 偏光 The light-transmitting units (220) are arranged in a spaced-apart manner in the direction of the light transmission unit (220), and are formed between two adjacent anti-peeping units (210).

3. The anti-glare and anti-peep polarizer according to claim 2, wherein: The length L of the anti-peeping unit (210) 防窥 is 5 to 500 μm, and the width W of the anti-peeping unit (210) is 防窥 In accordance with the width of the polarizing layer (300), the thickness H of the anti-peeping unit (210) is 防窥 10~500μm.

4. The anti-glare and anti-peep polarizer according to claim 1, wherein: The anti-peeping units (210) are of a long strip structure, the anti-peeping units (210) are arranged in a grid shape, the anti-peeping units (210) are made of opaque material, and the gaps between the anti-peeping units (210) form the light-transmitting units (220).

5. The anti-glare and anti-peep polarizer according to claim 4, wherein: The length L of the anti-peeping unit (210) 防窥 The width W of the anti-peeping unit (210) extending along the width of the polarizing layer (300) is 5 to 500 μm. 防窥 The width W of the anti-peeping unit (210) arranged along the length of the polarizing layer (300) is adapted to the width of the polarizing layer (300). 防窥 To match the length of the polarizing layer (300), the thickness H of the anti-peeping unit (210) is 防窥 10~500μm.

6. The anti-glare and anti-peep polarizer according to claim 1, wherein: The cross section of the anti-peeping unit (210) in the thickness direction is an isosceles trapezoid, a rectangle, or a combination of an isosceles trapezoid and a rectangle.

7. The anti-glare and anti-peep polarizer according to claim 1, wherein: The anti-peeping unit (210) is made of a light-proof material, and the light-transmitting unit (220) is made of a light-proof material.

8. The anti-glare and anti-peep polarizer according to any one of claims 1 to 7, characterized in that: The anti-glare layer (100) comprises a plurality of first protrusions (110) and second protrusions (120), wherein the first protrusions (110) and the second protrusions (120) are evenly distributed on the surface of the substrate layer (400) away from the anti-peep layer (200), wherein the diameter of the first protrusions (110) is greater than the diameter of the second protrusions (120).

9. The anti-glare and anti-peep polarizer according to claim 8, wherein: The first protrusion (110) and the second protrusion (120) are spherical, the diameter of the first protrusion (110) is 100-500 μm, the diameter of the second protrusion (120) is 10-100 μm, and the thickness of the first protrusion (110) and the second protrusion (120) are both 5-10 μm.

10. The anti-glare and anti-peep polarizer according to claim 8, wherein: The first protrusion (110) and the second protrusion (120) both account for 10 to 50% of the area of the substrate layer (400).

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