WO2022247749A1 - Anti-glare film and manufacturing method therefor, and display device - Google Patents

Abstract

An anti-glare film and a manufacturing method therefor, and a display device. The anti-glare film comprises a light-transmissive base layer (1) and an anti-glare layer (2) which are stacked. The anti-glare layer (2) has a reference surface (2s) parallel to the surface of the light-transmissive base layer (1), and a plurality of protruding parts (2p) protruded relative to the reference surface (2s). The surface roughness of the surface where the protruding parts (2s) are provided, a focus opening angle of the outer contour line of each protruding part (2p) protruded relative to the reference surface (2s) in a cross-section, and the ratio of the chord length of the contour line of the protruding part (2p) located in the reference plane (2s) in the cross-section to the maximum height are set in a predetermined range, so that the surface of the anti-glare film where the protruding parts (2p) are provided has anti-reflection/anti-glare characteristics, and the problem of appearance whitening caused by excessive scattering of light is avoided.

Description

Anti-glare film, manufacturing method thereof, and display device

This application claims the priority of the Chinese patent application with the application number 202110579338.7 and the title of the invention "anti-glare film and its manufacturing method, display device" filed with the China Patent Office on May 26, 2021, the entire contents of which are incorporated by reference in In this application.

technical field

The present application relates to the field of image display, in particular to an anti-glare film used in a display device, a manufacturing method thereof, and a display device including the anti-glare film.

Background technique

The display screen of an existing display device is usually externally protected by a flat plate made of a light-transmitting material (eg, glass or plastic). Under the irradiation of ambient light (such as outdoor sunlight and indoor light), the visual viewing effect of the display screen of the existing display device is easily affected by the reflected light of such a flat panel. For example, when the display screen of the display device is viewed under the condition of strong ambient light, the flat plate is likely to produce specular reflection, thus easily producing an obvious mirror image, thereby disturbing the visual viewing effect of the display screen of the display device. The existing solution is usually to increase the surface roughness of the flat panel, so that the light irradiated on the flat panel is scattered, so that the light irradiated on the flat panel is not easy to form specular reflection, which reduces the visual viewing effect of the above-mentioned flat panel on the display device adverse effects. However, in the case of increasing the surface roughness of the flat panel, the incident light may be excessively scattered by the flat panel. In this way, when the display screen of the display does not display images, the appearance of the display screen will be whitened, which will affect the appearance of the device.

Contents of the invention

In view of this, an object of the present application is to provide an anti-glare film and a manufacturing method thereof, which can effectively maintain the anti-glare properties of the surface while avoiding the whitening of the appearance caused by excessive scattering of light. Another object of the present application is to provide a display device comprising the above-mentioned anti-glare film.

For this reason, the application adopts the following technical solutions.

In a first aspect, the present application provides an anti-glare film as follows, the anti-glare film is used to be arranged on the display screen of a display device, the anti-glare film includes a laminated light-transmitting base layer and an anti-glare layer, the The anti-glare layer is arranged on the surface of the light-transmitting base layer,

The anti-glare layer has a reference plane parallel to the surface of the light-transmitting base layer, and the anti-glare layer is provided with a plurality of protrusions, each of which is far away from the reference plane. The light-transmitting base layer is protruding, and the surface roughness Ra of the surface of the anti-glare layer provided with the protruding part satisfies: 0.18um≤Ra≤2.43um,

In any section of the protrusion perpendicular to the reference plane and taken through the highest point of the protrusion, the outer contour line of the protrusion relative to the reference plane is a curve, Assuming that the focal opening angle of the outer contour line is θ, the chord length of the contour line of the protrusion located on the reference plane is L and the vertical height of the highest point relative to the reference plane is H, then Satisfy 3°≤θ≤45° and 10≤L/H≤150.

By adopting the above technical solution, the anti-glare film can effectively maintain the anti-reflective glare property of the surface provided with the protruding parts, and at the same time avoid the problem of whitening of the appearance caused by excessive scattering of light by the surface provided with the protruding parts.

In a possible implementation manner according to the first aspect, 0.5um≦H≦30um is also satisfied.

By adopting the above technical solution, the size of the protruding portion of the anti-glare film is avoided from being too large, thereby further ensuring the anti-reflective glare property of the anti-glare film and avoiding whitening of the appearance.

In a possible implementation form according to the first aspect, there is only one said highest point for each said protrusion,

In any section of the protruding part perpendicular to the datum plane and taken through the highest point of the protruding part, there is a first intersection point and a second point of intersection between the outer contour line of the protruding part and the datum plane Two intersection points, the height of the outer contour line monotonically increases from the first intersection point to the highest point, and the height of the outer contour line monotonically decreases from the highest point to the second intersection point.

By employing the above-mentioned technical solution, it is possible to form a protrusion having a smooth curved shape with a simple configuration.

In a possible implementation manner according to the first aspect, the anti-glare film further includes an anti-reflection layer, and the anti-reflection layer covers at least the surface of the anti-glare layer on which the protrusions are provided, for Reduce the reflectivity of light incident on the anti-glare layer.

By adopting the above technical solution, by providing the anti-reflection layer, the reflectance of light incident on the surface of the anti-glare layer provided with the protrusions can be reduced to below 3%, thereby improving the anti-reflection glare property.

In a possible implementation manner according to the first aspect, it is assumed that the thickness t of the anti-reflection layer satisfies 100nm≤t≤1000nm.

By adopting the above technical solution, by setting the thickness of the anti-reflection layer within a reasonable range, the reflectivity of incident light can be reduced without excessively increasing the thickness of the anti-glare film.

In a possible implementation manner according to the first aspect, the anti-glare film further includes an anti-fingerprint layer, and the anti-fingerprint layer covers a surface of the anti-reflection layer.

By adopting the above technical solution, the anti-glare film reduces the adhesion of fingerprints, making the surface easy to clean after being dirty.

In a possible implementation manner according to the first aspect, the outline shape of each of the protrusions intersecting the reference plane is hexagonal, and the plurality of protrusions are arranged in a honeycomb arrangement.

By adopting the above technical solution, the hexagonal protrusions arranged in such a honeycomb arrangement can improve the anti-glare effect.

In a possible implementation manner according to the first aspect, the contour shape of each of the protrusions intersecting the reference plane is a square, and the plurality of protrusions are arranged in a matrix array.

By adopting the above technical solution, the anti-glare effect can be improved through the square protrusions arranged in the matrix array.

In the second aspect, the present application also provides a method for manufacturing the anti-glare film described in any one of the above schemes. A layered gel material is arranged on the surface of the transparent substrate, and the glue is embossed on the surface of the glue through a mold. The protruding portion is formed on the base material.

By adopting the above technical solution, an anti-glare film having protrusions of a predetermined shape and size can be formed in a simple manner, further ensuring the anti-reflection glare properties of the anti-glare film and avoiding whitening of the appearance.

In a possible implementation manner according to the second aspect, a layered colloidal material is coated on the surface of the transparent substrate, the colloidal material is mixed with non-spherical particles, and the protrusions are formed by the particles .

By adopting the above-mentioned technical solution, an anti-glare film having protrusions can be formed in another simple method.

In a possible implementation manner according to the second aspect, the non-spherical particles are ellipsoidal particles, convex lens-shaped particles, or disk-shaped particles.

By adopting the above technical solution, it is beneficial to ensure that the dimensional parameters corresponding to the protrusions formed when another method is adopted meet the aforementioned range requirements.

In a possible implementation manner according to the second aspect, the gel material is an ultraviolet curing glue.

Beneficial effect: it is favorable for curing after the layered gum material is arranged on the transparent substrate.

In a possible implementation manner according to the second aspect, the antireflection layer is formed by depositing multiple layers of inorganic materials at least on the surface of the colloidal material under a vacuum environment by means of evaporation or sputtering; or using hollow silicon Ball paint is coated on the surface of the colloidal material to form an anti-reflection layer.

By adopting the above technical solution, the anti-reflection layer can be formed by a simple and effective method, thereby reducing the reflectivity of the anti-glare film.

In a possible implementation manner according to the second aspect, an anti-fingerprint layer is formed on the anti-reflection layer by vacuum coating or wet spraying.

By adopting the above technical solution, an anti-fingerprint layer can be formed by a simple and effective method, thereby reducing the adhesion of fingerprints and making the surface easy to clean after being dirty.

In a third aspect, the present application provides a display device as follows, the display device comprising a display screen and the anti-glare film described in any one of the above solutions, the anti-glare film being arranged on the display screen.

By adopting the above technical solution, the display device has the same effect as the above anti-glare film.

These and other aspects of the present application will be made more apparent in the following description of the embodiment(s).

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the specification, serve to explain the principles of the application.

FIG. 1A is a schematic diagram showing the structure of an anti-glare film according to a first embodiment of the present application, where a hollow arrow indicates a traveling direction of light.

FIG. 1B is a cross-sectional view showing a protrusion of the anti-glare film in FIG. 1A , where hatching is omitted.

FIG. 1C is a schematic top view showing the anti-glare film in FIG. 1A .

FIG. 2 is a cross-sectional view illustrating a convex portion of an anti-glare film according to a modification of the first embodiment of the present application, in which hatching is omitted.

FIG. 3 is a schematic plan view showing an anti-glare film according to a modification of the first embodiment of the present application.

4 is a schematic plan view showing an anti-glare film according to a modification of the first embodiment of the present application.

Fig. 5 is a schematic diagram showing the change curve of the scattering intensity incident on the anti-glare film with the scattering angle obtained according to actual measurement experience, where the ordinate is the scattering intensity, and the abscissa is the scattering angle.

Explanation of reference signs

1 light-transmitting base layer 2 anti-glare layer 2p protruding part 2s reference surface

P1 first point of intersection P2 second point of intersection P3 highest point O focus T thickness direction.

Detailed ways

Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

In addition, in order to better illustrate the present application, numerous specific details are given in the following specific examples. It will be understood by those skilled in the art that the present application may be practiced without certain of the specific details. In some instances, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the gist of the present application.

The structure of the anti-glare film according to each embodiment of the present application will be described below with reference to the accompanying drawings.

(Anti-glare film according to the first embodiment of the present application)

The anti-glare film according to the present application is used to be arranged on the display screen of a display device, so as to effectively maintain the anti-glare property of the surface and avoid whitening of the appearance due to excessive scattering of light. To this end, as shown in FIG. 1A , the anti-glare film according to the first embodiment of the present application includes a light-transmitting base layer 1 and an anti-glare layer 2 . The light-transmitting base layer 1 and the anti-glare layer 2 are stacked together in the thickness direction T. The anti-glare layer 2 is arranged on the surface of the light-transmitting base layer 1 . On the side away from the light-transmitting base layer 1, the anti-glare layer 2 has a reference plane 2s parallel to the surface of the light-transmitting base layer 1, and the light-transmitting base layer 1 is also formed with a large number of small-sized protrusions 2p, each protrusion 2p protrudes in a direction away from the light-transmitting base layer 1 relative to the reference plane 2s. In this way, the light incident on the surface of the anti-glare layer 2 provided with the protrusions 2p is scattered by the plurality of protrusions 2p, thereby effectively maintaining the anti-glare property of the anti-glare film. Furthermore, in order to effectively maintain the anti-glare film's anti-reflective glare properties and avoid excessive scattering of light to cause whitening of the appearance, the present application has made the following research and improvements.

For the surface of the anti-glare layer 2 on which the plurality of protrusions 2p are formed, the surface roughness (arithmetic mean deviation) Ra of the anti-glare layer 2 satisfies: 0.18um≤Ra≤2.43um.

Further, in the present embodiment, each protrusion 2p has only one highest point with respect to the reference plane 2s. As shown in FIG. 1B, in any cross-section taken perpendicular to the reference plane 2s of the protrusion 2p and passing through the highest point P3 of the protrusion 2p, the outer contour of the protrusion 2p protrudes relative to the reference plane 2s It is a circular arc curve, and if the focal opening angle of the outer contour line is θ, it satisfies: 3°≤θ≤45°.

Further, in this embodiment, the focus O of the outer contour line is the center of the circle where the arc curve is located. As shown in Figure 1B, in any cross-section taken perpendicular to the reference plane 2s of the protrusion 2p and passing through the highest point P3 of the protrusion 2p, the chord length of the contour line of the protrusion 2p located on the reference plane 2s is L and the vertical height of the highest point P3 of the outer contour relative to the reference plane 2s is H, then 10≤L/H≤150 is satisfied. Based on the above proportional relationship, in an optional solution, it also satisfies: 0.5um≤H≤30um. In another optional scheme, it also satisfies: 5um≤L≤300um. By setting in this way, in any section of the protruding part 2p perpendicular to the reference plane 2s and passing through the highest point P3 of the protruding part 2p, the outer contour of the protruding part 2p forms a gentle arc shape, thereby Surfaces inclined at a large angle with respect to the reference plane 2s are reduced, thereby reducing the case of large-angle scattering.

In summary, by rationally setting the anti-glare layer 2 to form the surface roughness Ra of the surface of the plurality of protrusions 2p, the focal angle θ of the protrusions 2p in the above-mentioned arbitrary cross-section, and the angle θ of the protrusions 2p in the above-mentioned arbitrary cross-section The ratio L/H between the chord length and the maximum height can avoid the whitening of the appearance caused by the surface of the anti-glare layer 2 provided with the protrusions 2p.

Further, in this embodiment, for each protrusion 2p, as shown in FIG. 1B , in any section of the protrusion 2p perpendicular to the reference plane 2s and passing through the highest point P3 , there are first intersection point P1 and second intersection point P2 between the outer contour line of the protrusion 2p and the reference surface 2s, the height of the outer contour line increases monotonically from the first intersection point P1 to the highest point P3, and the height of the outer contour line increases from the highest point P3 Monotonically decreasing to the second intersection point P2. In this way, there is no need to form secondary unevenness on the surface of the protrusion 2p, and the above-mentioned effect can be achieved only by the protrusion 2p having a smooth curved surface.

Further, in this embodiment, as shown in FIG. 1C , in a top view viewed in a direction perpendicular to the reference plane 2s, the outline shape of each protruding portion 2p intersecting the reference plane 2s is a hexagon, and a plurality of The protrusions 2p are arranged in a honeycomb arrangement. The contour shape and arrangement of the protruding portions 2p help to effectively maintain the anti-glare property of the surface.

The anti-glare film according to the first embodiment of the present application can be manufactured as follows. First, a layered glue material (such as UV-curable glue) is arranged on the surface of a transparent substrate (such as made of plastic); then, a mold with a concave portion is installed from the opposite side of the transparent substrate, so that the mold presses the layered gel material; again, light is irradiated from the opposite side of the transparent substrate where the layered gel material is arranged, so that the gel material is cured; finally, the mold is removed, thereby forming a The protrusion 2p has a predetermined shape and size.

By adopting the above solution, an anti-glare film that effectively maintains the anti-glare property of the surface and avoids excessive scattering of light to cause the appearance of the display screen to become white is realized.

The structure of an anti-glare film according to a modification of the first embodiment of the present application is explained below.

In a variant, each protrusion 2p has only one highest point relative to the reference plane 2s. As shown in FIG. 2 , in any cross section of the protrusion 2p perpendicular to the reference plane 2s and passing through the highest point P3 of the protrusion 2p, the outer contour of the protrusion 2p is a parabolic shape. In the present modification, the surface roughness Ra, the focal aperture angle θ, and the ratio L/H between the chord length and the maximum height satisfy the same conditions as those described in the first embodiment. However, it should be noted that the focus O of the parabolic outer contour is the center of a circle defined by the first intersection P1, the second intersection P2 and the highest point P3 where the outer contour intersects the reference plane 2s. In fact, since the outer surface profile of the protruding part 2p can be any curved surface shape such as a parabola, a hyperboloid, an ellipsoid, etc., when the protruding part 2p of different shapes is perpendicular to the reference plane 2s and passes through the protruding part 2p In any section taken by the highest point P3, the shape of the outer contour of the protruding portion 2p can be varied, and the focal point corresponding to the outer contour can be determined by the above method.

In another modification example, as shown in FIG. 3 , in a top view viewed in a direction perpendicular to the reference plane 2s, the contour shape of each protrusion 2p intersecting the reference plane 2s is a square, and the plurality of protrusions 2p Arranged in a matrix array arrangement. The contour shape and arrangement of the protruding portions 2p help to effectively maintain the anti-glare property of the surface.

In yet another modified example, as shown in FIG. 4 , in a plan view viewed in a direction perpendicular to the reference plane 2s, the outline shape of each protrusion 2p intersecting the reference plane 2s is a parallelogram, and the plurality of protrusions 2p are arranged in a row-by-row arrangement.

In fact, in the top view viewed from a direction perpendicular to the reference plane 2s, the contour shape of the intersection of the protruding portion 2p and the reference plane 2s can be set to any shape as required, and the arrangement of these protruding portions 2p can also be adjusted as required. Change.

An anti-glare film according to a second embodiment of the present application will be described below.

(Anti-glare film according to the second embodiment of the present application)

The basic structure of the anti-glare film according to the second embodiment of the present application is the same as that of the anti-glare film according to the first embodiment of the present application, and the surface roughness of the anti-glare film according to the second embodiment of the present application Ra, the focal opening angle θ, and the ratio L/H between the chord length and the maximum height satisfy the various conditions explained in the first embodiment.

However, unlike the first embodiment, in this embodiment, an anti-glare film is manufactured as follows. A layered adhesive material (eg UV curable glue) is coated on the surface of a transparent substrate (eg plastic). The colloidal material is mixed with non-spherical particles, and the protrusions 2p are formed by these non-spherical particles. The non-spherical particles may be non-spherical particles such as ellipsoidal particles, convex lens-shaped particles, and disk-shaped particles. In this way, the anti-glare film according to the second embodiment of the present application can achieve the same effect as the anti-glare film according to the first embodiment of the present application.

The above content describes the exemplary embodiments of the present application, and supplementary explanations are given below.

i. It should be understood that for the different technical means in each embodiment, as long as there is no contradiction, these technical means can be combined with each other to form various technical solutions.

ii. The present application also provides a display device, which includes a display screen and the above-mentioned anti-glare film. An anti-glare film is provided on the display screen. In an optional aspect, the anti-glare film is spread over the display screen. In this way, the anti-glare film can achieve anti-reflection glare while avoiding whitening.

iii. The anti-glare film of the present application may also be formed with an anti-reflection layer. In an optional solution, the anti-reflection layer is disposed on the surface of the anti-glare layer on which the protrusions are disposed. In another optional solution, the anti-reflection layer is arranged on the entire surface of the anti-glare film. The thickness t of the antireflection layer satisfies 100nm≤t≤1000nm. By providing the anti-reflection layer, the reflectance of light incident on the surface of the anti-glare layer provided with the protrusions can be reduced to below 3%, thereby improving the anti-reflection glare property.

Further, different methods can be used to form the anti-reflection layer. In an optional solution, multiple layers of inorganic materials are deposited on the entire surface of the anti-glare film by evaporation or sputtering in a vacuum environment. In another optional solution, hollow silicon spheres are used to coat the surface of the colloidal material such as UV-curable glue.

iv. The anti-glare film of the present application may also be formed with an anti-fingerprint layer. In an optional solution, the anti-fingerprint layer is covered on the surface of the anti-reflection layer. In another optional solution, the anti-fingerprint layer covers the entire surface of the anti-glare film. By providing an anti-fingerprint layer, the anti-glare film reduces the adhesion of fingerprints and makes the surface easy to clean after being dirty.

Further, different methods can be used to form the anti-fingerprint layer. Specifically, the anti-fingerprint layer can be formed by vacuum coating or wet spraying.

v. The present application also establishes the following simulation model based on the above solution for verification.

In a simulation model, the outline shape of the intersection of the protrusion and the reference plane is hexagonal, and the plurality of protrusions are arranged in a honeycomb manner. Further, under the condition that the shape and size of the contour intersected by the protruding part and the reference plane remain unchanged, the height of the highest point of the protruding part is changed. The extent to which light is scattered by the surface. From this, the following conclusions can be drawn: under the condition that the outline shape and size of the intersection of the protrusion and the reference plane remain unchanged, the height of the highest point of the protrusion is smaller (it can also be said that the curved surface of the protrusion is smoother) , the smaller the scattering angle of the light incident on the surface of the anti-glare film provided with the protrusions, the lighter the degree of whitening. Based on visual judgment, the degree of whitening is acceptable when the scattering angle ranges from 5° to 80°.

In another simulation model, under the condition that the surface roughness of the surface of the anti-glare film provided with the protrusions satisfies the range described in the above-mentioned specific embodiments, the shape of the protrusions is not changed, and the protrusions are scaled up and down. In this simulation model, the scattering range of light incident on the surface of the anti-glare film provided with the protrusions is measured. From this, it is concluded that, under the condition that the surface roughness of the surface of the anti-glare film provided with the protrusions satisfies the range described in the above-mentioned specific embodiments, the shape of the protrusions can be scaled up and down without changing the shape of the protrusions. The size of the exit portion will not affect the scattering properties of the anti-glare film.

vi. Further, based on the actual measurement experience, as shown in Figure 5, when the mirror reflection occurs on the surface, the scattering intensity is concentrated near 0 degrees and presents a pulse distribution; The degree of decrease in angular brightness needs to be less than 10%. In order to ensure that the anti-glare film reduces the degree of whitening without affecting the anti-reflection glare characteristics, the following simulation model is established.

Specifically, in this simulation model, the contour shape of the intersection of the protrusion and the reference plane is hexagonal, and the plurality of protrusions are arranged in a honeycomb manner. Under the condition that the contour shape and size of the intersection of the protrusion and the reference plane remain unchanged (the maximum chord length is 100um), by changing the height of the highest point of the protrusion, the focal angle and the surface roughness, the corresponding Scattering angle and ±1° angular luminance decrease ratio, see Table 1 below for specific results.

[Table 1]

Part of the measurement results are listed in Table 1 above, so it can be verified that the ranges defined for each size parameter in the proposal of the present application belong to a reasonable range capable of achieving the purpose of the present application.

Although the present application has been described in conjunction with various embodiments here, however, in the process of implementing the claimed application, those skilled in the art can understand and realize the present application by viewing the drawings, the disclosure, and the appended claims. Other variations of the embodiments are disclosed. In the claims, the word "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

Having described various embodiments of the present application above, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principle of each embodiment, practical application or improvement of technology in the market, or to enable other ordinary skilled in the art to understand each embodiment disclosed herein.

Claims (15)

1. An anti-glare film, the anti-glare film is used to be arranged on the display screen of a display device, characterized in that the anti-glare film includes a laminated light-transmitting base layer and an anti-glare layer, and the anti-glare layer is arranged on the On the surface of the light-transmitting base layer,

   The anti-glare layer has a reference plane parallel to the surface of the light-transmitting base layer, and the anti-glare layer is provided with a plurality of protrusions, each of which is far away from the reference plane. The light-transmitting base layer is protruding, and the surface roughness Ra of the surface of the anti-glare layer provided with the protruding part satisfies: 0.18um≤Ra≤2.43um,

   In any section of the protrusion perpendicular to the reference plane and taken through the highest point of the protrusion, the outer contour line of the protrusion relative to the reference plane is a curve, Assuming that the focal opening angle of the outer contour line is θ, the chord length of the contour line of the protrusion located on the reference plane is L and the vertical height of the highest point relative to the reference plane is H, then Satisfy 3°≤θ≤45° and 10≤L/H≤150.
2. The anti-glare film according to claim 1, further satisfying 0.5um≤H≤30um.
3. Anti-glare film according to claim 1 or 2, characterized in that for each of said protrusions there is only one of said highest points,

   In any section of the protruding part perpendicular to the datum plane and taken through the highest point of the protruding part, there is a first intersection point and a second point of intersection between the outer contour line of the protruding part and the datum plane Two intersection points, the height of the outer contour line monotonically increases from the first intersection point to the highest point, and the height of the outer contour line monotonically decreases from the highest point to the second intersection point.
4. The anti-glare film according to any one of claims 1 to 3, characterized in that, the anti-glare film further comprises an anti-reflection layer, and the anti-reflection layer covers at least the part of the anti-glare layer provided with the protrusions. The surface of the exit portion is used to reduce the reflectivity of light incident on the anti-glare layer.
5. The anti-glare film according to claim 4, wherein the thickness t of the anti-reflection layer satisfies 100nm≤t≤1000nm.
6. The anti-glare film according to claim 4 or 5, characterized in that the anti-glare film further comprises an anti-fingerprint layer, and the anti-fingerprint layer is covered on the surface of the anti-reflection layer.
7. According to the anti-glare film according to any one of claims 1 to 6, it is characterized in that, the contour shape of each of the protrusions intersecting the reference plane is a hexagon, and the plurality of protrusions are formed by Honeycomb arrangements are arranged.
8. According to the anti-glare film according to any one of claims 1 to 6, it is characterized in that, the outline shape of each of the protrusions intersecting the reference plane is a square, and the plurality of protrusions are arranged in a matrix arranged in an order.
9. A method for manufacturing an anti-glare film according to any one of claims 1 to 8, characterized in that a layered colloidal material is arranged on the surface of the transparent substrate, and is embossed on the colloidal material by a mold The protrusion is formed.
10. A method for manufacturing an anti-glare film according to any one of claims 1 to 6, characterized in that, on the surface of the transparent substrate, a layered colloidal material is coated, and the colloidal material is mixed with non-spherical particles , forming the protrusions by the particles.
11. The method for manufacturing an anti-glare film according to claim 10, wherein the non-spherical particles are ellipsoidal particles, convex lens-shaped particles, and disk-shaped particles.
12. The method for manufacturing an anti-glare film according to any one of claims 9 to 11, characterized in that, the colloid material is an ultraviolet curing glue.
13. The manufacture method of the anti-glare film according to any one of claims 9 to 12, characterized in that,

    Depositing multiple layers of inorganic materials at least on the surface of the colloidal material in a vacuum environment by evaporation or sputtering to form an anti-reflection layer; or

    The anti-reflection layer is formed by coating the surface of the colloidal material with hollow silicon sphere paint.
14. The method for manufacturing an anti-glare film according to claim 13, characterized in that an anti-fingerprint layer is formed on the anti-reflection layer by vacuum coating or wet spraying.
15. A display device, characterized in that the display device comprises a display screen and the anti-glare film according to any one of claims 1 to 8, and the anti-glare film is arranged on the display screen.

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