Anti-dazzle glass, glass cover plate, display screen and electronic equipment

Abstract

The invention discloses anti-dazzle glass, a glass cover plate, a display screen and electronic equipment, the anti-dazzle glass comprises a first surface and a plurality of microstructures, the first surface is the surface of the anti-dazzle glass in the thickness direction of the anti-dazzle glass, the plurality of microstructures are arranged on the first surface, the plurality of microstructures comprise concave parts and / or convex parts, and the concave parts and / or the convex parts are arranged on the first surface. The contour line of the section, cut by the first plane, of the microstructure comprises a morphology curve, and the morphology curve meets the following conditions that the morphology curve is fitted through an objective function, the objective function comprises power functions, and the average index range of the power functions is 1.5-3; wherein the first plane is a plane which is parallel to the thickness direction of the anti-dazzle glass and passes through the central points of the at least two microstructures. According to the anti-glare glass, the glass cover plate, the display screen and the electronic equipment provided by the embodiment of the invention, the characteristics of good anti-glare effect, good definition, few flash points and the like can be simultaneously considered.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and particularly to an anti-glare glass, a glass cover plate, a display screen and an electronic device. Background Art

[0002] In order to avoid strong reflected light generated when external light sources irradiate the display screen of an electronic device, which causes interference to users and makes it impossible for users to clearly see the screen, an anti-glare glass is usually covered on the display screen of the electronic device to reduce the intensity of external reflected light, so as to well solve the glare interference of external light sources (such as ambient light). However, after covering the anti-glare glass on the display screen, the clarity of the display screen will decrease, and there will be a problem of flash points. Summary of the Invention

[0003] Embodiments of the present application disclose an anti-glare glass, a glass cover plate, a display screen and an electronic device, which can simultaneously take into account the characteristics of good anti-glare effect, good clarity and few flash points.

[0004] To achieve the above object, in a first aspect, the present application discloses an anti-glare glass, which includes:

[0005] A first surface, which is the surface of the anti-glare glass in its thickness direction; and,

[0006] A plurality of microstructures, which are arranged on the first surface, the plurality of microstructures include concave portions and / or convex portions, and the cross-sectional contour line of the microstructures intercepted by a first plane includes a morphological curve, and the morphological curve satisfies the following conditions: the morphological curve is fitted by an objective function, the objective function includes a power function, and the average exponent range of each power function is 1.5 - 3;

[0007] Wherein, the first plane is: a plane parallel to the thickness direction of the anti-glare glass and passing through the center points of two adjacent microstructures.

[0008] As an optional implementation manner, in the embodiment of the first aspect of the present application, in the first plane, the direction perpendicular to the thickness direction of the anti-glare glass is the first direction;

[0009] Taking the position where the curvature of the morphological curve is zero as the coordinate origin, the first direction as the x-axis, and the thickness direction of the anti-glare glass as the z-axis to establish a rectangular coordinate system, or, the cross-sectional contour line of the microstructures intercepted by the first plane includes two morphological curves symmetrically arranged about the thickness direction of the anti-glare glass, taking the symmetry point of the two morphological curves as the coordinate origin, the first direction as the x-axis, and the thickness direction of the anti-glare glass as the z-axis to establish a rectangular coordinate system;

[0010] The described profile curve satisfies the following power function formula:

[0011] z = zmax*(x / xmax)^γ;

[0012] Wherein, xmax is the maximum position on the x-axis where the curvature of the described profile curve is not zero, zmax is the highest position on the z-axis where the curvature of the described profile curve is not zero, and γ is the exponent.

[0013] As an alternative implementation, in the embodiment of the first aspect of the present application, γave is the average value of γ, wherein 1.5 ≤ γave ≤ 2.4.

[0014] As an alternative implementation, in the embodiment of the first aspect of the present application, 1.8 ≤ γave ≤ 2.2.

[0015] As an alternative implementation, in the embodiment of the first aspect of the present application, σγ is the standard deviation of γ, wherein 0.04 < σγ < 0.15.

[0016] As an alternative implementation, in the embodiment of the first aspect of the present application, 0.05 < σγ < 0.08.

[0017] As an alternative implementation, in the embodiment of the first aspect of the present application, an edge is formed at the intersection of two adjacent microstructures, or the intersection of two adjacent microstructures has a smooth transition; and / or,

[0018] The cross-sectional contour line of the microstructure intercepted by the first plane includes two described profile curves symmetrically arranged about the thickness direction of the anti-glare glass, and the connection between the two profile curves has a smooth transition, or an edge is formed at the connection between the two.

[0019] As an alternative implementation, in the embodiment of the first aspect of the present application, two adjacent microstructures are connected by a connecting surface;

[0020] The first plane passes through the center points of two adjacent microstructures, and in the first plane, the direction perpendicular to the thickness direction of the anti-glare glass is the first direction, and the cross-sectional contour line of the connecting surface intercepted by the first plane is the first intercept line;

[0021] For two adjacent microstructures with center points located in the first plane, the maximum dimension of one microstructure in the first direction is W1, the maximum dimension of the other microstructure in the first direction is W2, and the dimension of the first intercept line in the first direction is L1;

[0022] Wherein, 2L1 / (W1 + L1 + W2) ≤ 5%.

[0023] As an alternative implementation, in the embodiments of the first aspect of the present application, two adjacent microstructures are connected by a connecting surface;

[0024] The first plane passes through the center points of two adjacent microstructures, and in the first plane, the direction perpendicular to the thickness direction of the anti-glare glass is the first direction. The cross-sectional contour line of the connecting surface intercepted by the first plane is the first intercept line;

[0025] For two adjacent microstructures with center points located in the first plane, the maximum dimension of one microstructure in the first direction is W1, the maximum dimension of the other microstructure in the first direction is W2, and the dimension of the first intercept line in the first direction is L1;

[0026] The area of the first surface is S1, and the sum of the projected areas of the connecting surface on the first surface is S2;

[0027] Wherein, when the curvature of the first intercept line is less than 0.01 μm -1 , and 2L1 / (W1 + L1 + W2) > 5%, S2 / S1 ≤ 10%.

[0028] As an alternative implementation, in the embodiments of the first aspect of the present application, S2 / S1 ≤ 1%.

[0029] As an alternative implementation, in the embodiments of the first aspect of the present application, the microstructure includes a third surface and a fourth surface, and the fourth surface is connected around the periphery of the third surface;

[0030] The first plane passes through the center points of two adjacent microstructures, and in the first plane, the direction perpendicular to the thickness direction of the anti-glare glass is the first direction. The cross-sectional contour line of the third surface intercepted by the first plane is the second intercept line, and the cross-sectional contour line of the fourth surface intercepted by the first plane includes two spaced morphology curves, and the second intercept line is connected between the two morphology curves;

[0031] For two adjacent microstructures with center points located in the first plane, the maximum dimension of one microstructure in the first direction is W1, the maximum dimension of the other microstructure in the first direction is W2, the distance between the two adjacent microstructures in the first direction is M, the dimension of the second intercept line of one microstructure in the first direction is L2, and the dimension of the second intercept line of the other microstructure in the first direction is L3;

[0032] Wherein, L2 / (W1 + M / 2) ≤ 5%, and L3 / (W2 + M / 2) ≤ 5%.

[0033] As an alternative implementation, in the embodiment of the first aspect of the present application, the microstructure includes a third surface and a fourth surface, and the fourth surface is circumferentially connected to the periphery of the third surface;

[0034] The first plane passes through the center points of two adjacent microstructures, and in the first plane, the direction perpendicular to the thickness direction of the anti-glare glass is the first direction. The cross-sectional contour line of the third surface intercepted by the first plane is the second intercept line, and the cross-sectional contour line of the fourth surface intercepted by the first plane includes two spaced-apart topography curves. The second intercept line is connected between the two topography curves;

[0035] For two adjacent microstructures with their center points located in the first plane, the maximum dimension of one microstructure in the first direction is W1, the maximum dimension of the other microstructure in the first direction is W2, the distance between two adjacent microstructures in the first direction is M, the dimension of the second intercept line of one microstructure in the first direction is L2, and the dimension of the second intercept line of the other microstructure in the first direction is L3;

[0036] The area of the first surface is S1, and the sum of the projected areas of the third surface on the first surface is S3;

[0037] Wherein, when the curvature of the second intercept line is less than 0.01 μm -1 , L2 / (W1 + M / 2) > 5%, and L3 / (W2 + M / 2) > 5%, then S3 / S1 ≤ 10%.

[0038] As an alternative implementation, in the embodiment of the first aspect of the present application, S3 / S1 ≤ 1%.

[0039] As an alternative implementation, in the embodiment of the first aspect of the present application, two adjacent microstructures are connected by a connecting surface. The sum of the projected areas of the connecting surface on the first surface is S2, and the cross-sectional contour line of the connecting surface intercepted by the first plane is the first intercept line;

[0040] For two adjacent microstructures with their center points located in the first plane, the dimension of the first intercept line in the first direction is L1;

[0041] When the curvature of the first intercept line is less than 0.01 μm -1 under the condition that, 2L1 / (W1 + L1 + W2) > 5%, and (S2 + S3) / S1 ≤ 10%.

[0042] As an alternative embodiment, in the embodiment of the first aspect of the present application, the distance between the centers of two adjacent microstructures is D, and σD is the standard deviation of D;

[0043] Wherein, 0 < σD ≤ 5 μm, or, 0.10 μm < σD ≤ 5 μm.

[0044] As an alternative embodiment, in the embodiment of the first aspect of the present application, 0.5 μm ≤ σD ≤ 1 μm.

[0045] As an alternative embodiment, in the embodiment of the first aspect of the present application, Dave is the average value of D, wherein, 10 μm ≤ Dave ≤ 60 μm.

[0046] As an alternative embodiment, in the embodiment of the first aspect of the present application, 15 μm ≤ Dave ≤ 30 μm.

[0047] In a second aspect, the present application discloses a glass cover plate, which includes the anti-glare glass as described in the first aspect above.

[0048] As an alternative embodiment, in the embodiment of the second aspect of the present application, the glass cover plate further includes an anti-reflection film, and the anti-reflection film is disposed on the first surface of the anti-glare glass.

[0049] In a third aspect, the present application discloses a display screen, which includes the anti-glare glass as described in the first aspect above or the glass cover plate as described in the second aspect above.

[0050] In a fourth aspect, the present application discloses an electronic device, which has the display screen as described in the third aspect above.

[0051] Compared with the prior art, the beneficial effects of the present application are as follows:

[0052] The anti-glare glass, glass cover plate, display screen and electronic device provided by the embodiments of the present application adopt a power function curve to fit the topography curve of each microstructure, and control the average exponent range of each power function within the range of 1.5 - 3 to constrain the topography curve characteristics of the microstructure, so that the anti-glare glass can simultaneously have good anti-glare effect, good clarity and few flash points, etc., thereby obtaining an anti-glare glass with good anti-glare effect, good clarity and few flash points. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0054] Figure 1 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application;

[0055] Figure 2 is an exploded structural diagram of an electronic device disclosed in an embodiment of the present application;

[0056] Figure 3 is a first schematic structural diagram of a display screen disclosed in an embodiment of the present application;

[0057] Figure 4 is a second schematic structural diagram of a display screen disclosed in an embodiment of the present application;

[0058] Figure 5 is a first schematic structural diagram of an anti-reflection film disclosed in an embodiment of the present application;

[0059] Figure 6 is a second schematic structural diagram of an anti-reflection film disclosed in an embodiment of the present application;

[0060] Figure 7 is a third schematic structural diagram of an anti-reflection film disclosed in an embodiment of the present application;

[0061] Figure 8 is a first schematic structural diagram of an anti-glare glass disclosed in an embodiment of the present application;

[0062] Figure 9 is a second schematic structural diagram of an anti-glare glass disclosed in an embodiment of the present application;

[0063] Figure 10 is a first cross-sectional view of a microstructure intercepted by a first plane disclosed in an embodiment of the present application;

[0064] Figure 11 is a second cross-sectional view of a microstructure intercepted by a first plane disclosed in an embodiment of the present application;

[0065] Figure 12 is a real-shot picture of the cross-section of a microstructure intercepted by a first plane disclosed in an embodiment of the present application;

[0066] Figure 13 is Figure 12 a schematic diagram of fitting the morphology curve with a power function curve;

[0067] Figure 14It is the first comparison diagram of the topography curve and the power function curve of the microstructure disclosed in the embodiments of the present application;

[0068] Figure 15 It is the second comparison diagram of the topography curve and the power function curve of the microstructure disclosed in the embodiments of the present application;

[0069] Figure 16 It is the actual photo of the microstructure disclosed in the embodiments of the present application;

[0070] Figure 17 It is the first cross-sectional view of two adjacent microstructures intercepted by the first plane disclosed in the embodiments of the present application;

[0071] Figure 18 It is the second cross-sectional view of two adjacent microstructures intercepted by the first plane disclosed in the embodiments of the present application.

[0072] Main reference numerals description

[0073] 1000 - Electronic device;

[0074] 100 - Display screen; 100a - Glass cover plate; 10 - Anti-glare glass; 10a - First surface; 10b - Second surface; 11 - Microstructure; 11a - Third surface; 11b - Fourth surface; 111 - Recess; 112 - Protrusion; 113 - Topography curve; 114 - Edge; 115 - Connection surface; 116 - Non-planar surface; 20 - Anti-reflection film; 21 - Film layer; 23 - Glass substrate; 24 - Nanostructure; 30 - Display module;

[0075] 200 - Device housing; 201 - Frame; 202 - Rear cover. Detailed implementation manners

[0076] In order to make the purpose, technical solutions and advantages of the present application clearer and more understandable, the following will clearly and completely describe the exemplary embodiments of the present application in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all the embodiments. That is to say, the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0077] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the subsequent described embodiments, rather than intending to limit the embodiments of the present application. Unless otherwise defined, all the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the description of the present application in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present application.

[0078] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0079] The terms "first", "second", etc. used in the present application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present application, the first surface may be referred to as the second surface, and similarly, the second surface may be referred to as the first surface. Both the first surface and the second surface are surfaces, but they are not the same surface.

[0080] In addition, the terms "first", "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0081] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0082] In the description of the present application, it should be noted that the singular forms of "a", "an" and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprise / include" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0083] In addition, the term "and / or" used in this specification includes any and all combinations of the related listed items. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. That is, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0084] As the application scenarios of electronic devices become more and more extensive, consumers' dependence on electronic devices outdoors is also increasing. In outdoor scenarios, external light sources often shine on the screen, and the reflected light generated by the external light source irradiation makes it impossible for users to clearly see the screen. To solve the above technical problems, anti-glare (AG) glass with microstructures such as concave portions and / or convex portions on its surface is usually selected as the glass cover plate. Among them, the anti-glare function of the anti-glare glass is mostly realized by chemically etching microstructures such as convex portions and / or concave portions on the glass surface.

[0085] However, when using this anti-glare glass on a high-resolution screen, it will cause a decrease in clarity and generate flash points, seriously affecting the visual effect of the screen.

[0086] Among them, the flash point is as follows: when the light emitted by the display screen passes through the surface of the anti-glare glass, it will be refracted by the microstructures distributed on the surface of the anti-glare glass, thus generating a light-concentrating effect and forming a flash point phenomenon, which greatly affects the display effect. Specifically, after the light passes through the uneven surface of the anti-glare glass (since the surface of the anti-glare glass is provided with microstructures such as concave portions and / or convex portions, the surface of the anti-glare glass will be uneven), it will be distorted, and then the red, green, and blue (RGB) light rays emitted by the three primary color pixel points will cross, resulting in a flickering point that the user senses. This phenomenon is called a flash point in the industry. The existence of the flash point will lead to poor clarity of the actual picture display, affecting the display effect and the user's visual experience.

[0087] Therefore, there is an urgent need for a high-definition anti-glare glass that can eliminate the flash points of a high-pixel display screen and retain the anti-glare function.

[0088] The applicant has found through research that the morphology of the microstructures on the anti-glare glass will affect the anti-glare effect, clarity, and flash point problems. That is, different morphologies of the microstructures will result in different anti-glare effects, clarity, and flash point problems. Therefore, by controlling the morphology of the microstructures, it is possible to achieve the purpose of simultaneously having a good anti-glare effect, high clarity, and few flash points.

[0089] Among them, in the case where the microstructure is a convex portion, the surface topography of the groove wall of the microstructure will include a curved surface, and the cross-sectional contour line obtained by intercepting the microstructure with a plane parallel to the thickness direction of the anti-glare glass and passing through the center of the microstructure includes a curve; in the case where the microstructure is a concave portion, the outer surface topography of the microstructure will include a curved surface, and the cross-sectional contour line obtained by intercepting the microstructure with a plane parallel to the thickness direction of the anti-glare glass and passing through the center of the microstructure includes a curve.

[0090] In the related art, the topography of the microstructure is usually characterized by curvature. However, curvature can only characterize a single point and cannot completely characterize a curved surface or a curve. If one wants to completely characterize a curved surface or a curve, it is usually necessary to measure the curvature at multiple points on the curved surface or curve, which is rather troublesome, time-consuming, and laborious. Moreover, when using curvature for characterization, the curvature range of the curved surface or curve is generally limited. However, for the same curvature range, there are countless curved surfaces or curves that meet the requirements of the curvature range, and the changing trend of the curved surface or curve cannot be completely characterized. As a result, it is difficult to effectively obtain the topography characteristics of the microstructure, and it is further difficult to fabricate an anti-glare glass with good anti-glare effect, good clarity, and few flash points. Or, it is difficult to analyze and verify the influence of the topography of the microstructure on the anti-glare effect, clarity, and flash points in order to obtain an anti-glare glass with good anti-glare effect, good clarity, and few flash points.

[0091] In view of this, the embodiments of the present application provide an anti-glare glass that can facilitate the characterization of the specific topography of the microstructure.

[0092] Next, some technical solutions in some embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in some embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0093] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of an electronic device in one implementation manner of the present application. The embodiments of the present application provide an electronic device, and the electronic device 1000 may also be referred to as a mobile terminal (Mobile Terminal, MT), a terminal (Terminal), a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), etc.

[0094] In this application, the specific product form of the electronic device can be a smart phone, a tablet personal computer, a learning machine, a notebook computer, a desktop computer, a Personal Digital Assistant (PDA), a laptop computer, an Ultramobile Personal Computer (UMPC), a TV, a wearable smart device (such as a smart watch, a smart wristband, an ear phone, etc.), a vehicle-mounted device, a household appliance (such as an electric toothbrush, a flashlight, etc.), a gaming device (such as a gamepad, a joystick, a gaming mouse, etc.), a multimedia player, an e-book reader, or other electronic products with a display screen. At this time, the anti-glare glass mentioned later is provided on the display module of the display screen to utilize the anti-glare property of the anti-glare glass to reduce the specular reflection of ambient light on the display screen and form scattering, solving the problem of reflection and glare of the display screen under ambient light sources, thereby making the display effect of the display screen clearer.

[0095] It can be understood that the electronic device in this application can be not only an electronic product with a display screen, but also an electronic product without a display screen, such as a car. At this time, the anti-glare glass mentioned later can be the windshield of the car, so that when the driver observes the field of view in the windshield, there will be no dazzling situation, reducing the formation of stray light and thus playing an anti-glare role, ensuring driving safety and reducing the incidence of traffic accidents. The embodiment of this application does not make a specific limitation on the form of the electronic device.

[0096] For ease of understanding and description, the following takes a tablet personal computer as an example of the electronic device to illustrate the structure of the electronic device 1000 provided by the embodiment of this application.

[0097] Please refer to Figure 2 , Figure 2 is Figure 1Exploded view of the electronic device shown. The electronic device 1000 provided by the embodiments of the present application includes a display screen 100 and a device housing 200. Among them, the display screen 100 is installed on the device housing 200, and the display side of the display screen 100 faces away from the device housing 200. The display screen 100 is used to implement the screen display function of the electronic device 1000 of the present application. The device housing 200 is used to support, fix and protect the display screen 100, so that the display screen 100 fixed on the device housing 200 can normally implement its screen display function, and the device housing 200 can be used to install various electronic components required by the electronic device 1000, such as cameras (specifically, front cameras and / or rear cameras), motherboards, batteries, receivers, microphones, and so on.

[0098] At the same time, the device housing 200 can also, under the action of external forces, such as in the cases of dropping, knocking, and bumping, play a role in fixing and protecting the display screen 100 and other various electronic components or structures provided inside the device housing 200. And it can form a sealing effect on the display screen 100 and other electronic components or structures provided inside the device housing 200, so as to prevent external moisture, dust and other impurities from eroding the electronic components or structures provided inside the device housing 200.

[0099] Exemplarily, the device housing 200 may include a frame 201 and a rear cover 202. The rear cover 202 is fixed to the frame 201. The rear cover 202 can be fixedly connected to the frame 201 by adhesive, or can be an integrally formed structure with the frame 201, that is, the rear cover 202 and the frame 201 are a whole structure. The display screen 100 is located on the side of the frame 201 away from the rear cover 202. At this time, the display screen 100 and the rear cover 202 are respectively located on both sides of the frame 201. The display screen 100, the frame 201 and the rear cover 202 jointly enclose the interior of the electronic device 1000.

[0100] Optionally, the display screen 100 can be a rigid display screen (flat screen) or a flexible display screen (curved screen). Exemplarily, the display screen 100 can be an organic light-emitting diode display panel (referred to as OLED for short), an active-matrix organic light-emitting diode or an active matrix organic light-emitting diode display panel (referred to as AMOLED for short), a mini organic light-emitting diode display panel, a micro light-emitting diode display panel, a micro organic light-emitting diode display panel, a quantum dot light-emitting diode display panel (referred to as QLED for short), or a liquid crystal display panel (referred to as LCD for short).

[0101] It should be noted that Figure 2 and the related drawings below only schematically show some components included in the electronic device 1000, and the actual shapes, actual sizes, actual positions, and actual structures of these components are not limited by Figure 2 and the following drawings. That is, the structure schematically shown in the embodiments of the present application does not constitute a specific limitation on the electronic device 1000. In other embodiments of the present application, the electronic device 1000 may include more or fewer components than shown in the drawings, or combine certain components, or split certain components, or have different component arrangements.

[0102] Please refer to Figure 3 , Figure 3 is Figure 2 a schematic structural diagram of the display screen 100 shown in some of its embodiments. The display screen 100 provided by the embodiments of the present application includes an anti-glare glass (referred to as AG glass for short) 10 and a display module 30. The anti-glare glass 10 is disposed on the display side of the display module 30, for example, covering the display side of the display module 30, so that the anti-glare characteristic of the anti-glare glass 10 can be used to reduce the specular reflection of ambient light on the display screen 100 and form scattering, solving the problems of reflection and glare of the display screen 100 under ambient light sources, thereby making the display effect of the display screen 100 clearer.

[0103] Please refer to Figure 4 ,Figure 4 Yes Figure 2 It is a schematic structural diagram of the display screen 100 in some other embodiments. The display screen provided by the embodiments of the present application includes a glass cover plate 100a and a display module 30. The glass cover plate 100a is disposed on the display side of the display module 30, for example, covering the display side of the display module 30.

[0104] Among them, the glass cover plate 100a includes an anti-glare glass (Anti-glare glass, abbreviated as AG glass) 10. The anti-glare glass 10 is disposed on the display side of the display module 30, for example, covering the display side of the display module 30, so that the anti-glare characteristic of the anti-glare glass 10 can be used to reduce the specular reflection of ambient light on the display screen 100 and form scattering, solving the problems of reflection and glare of the display screen 100 under ambient light sources, thereby making the display effect of the display screen 100 clearer.

[0105] Furthermore, the glass cover plate 100a further includes an anti-reflection film (Anti-Reflectance, abbreviated as AR film) 20. The anti-reflection film 20 is disposed on the side of the anti-glare glass 10 facing away from the display module 30, for example, covering the side of the anti-glare glass 10 facing away from the display module 30. That is to say, the anti-glare glass 10 is disposed between the anti-reflection film 20 and the display module 30.

[0106] Adding an anti-reflection film 20 additionally on the anti-glare glass 10 can further reduce the specular reflectivity, thereby being beneficial to improving the anti-glare effect of the glass cover plate 100a; moreover, the addition of the anti-reflection film 20 can also effectively improve the bright room contrast, increase the brightness of the display screen 100, and enhance the clarity and visual comfort of the image, so that the viewer can comfortably view the content of the display screen 100.

[0107] Among them, the bright room contrast refers to the contrast performance of the display screen in a bright room environment. That is to say, in a strong light environment (such as direct sunlight or high-intensity indoor lighting), it is the brightness ratio between the brightest area and the darkest area of the screen.

[0108] In some embodiments, the total reflectivity of the glass cover plate is 1%-2%, for example, 1.5%-2%. Exemplarily, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9% or 2%, etc.

[0109] When the above relationship is satisfied, it is possible to facilitate the processing of forming the anti-reflection film 20 and the anti-glare glass 10, reduce the cost, and at the same time make the total reflectivity of the glass cover plate 100a lower, so that the image clarity and visual comfort can be better improved, enabling the viewer to comfortably view the content of the display screen 100.

[0110] When the total reflectivity of the glass cover plate 100a is less than 1%, for example, when the total reflectivity of the glass cover plate 100a is 0.5%, 0.7%, 0.8%, etc., it will increase the preparation difficulty of the anti-reflection film 20 and the anti-glare glass 10, resulting in a relatively high price of the glass cover plate 100a, thus increasing the cost; when the total reflectivity of the glass cover plate 100a is greater than 2%, the content displayed on the display screen will not be clearly visible, affecting the viewing.

[0111] In some embodiments, the specular reflectivity of the glass cover plate is 0.1%-0.35%, for example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3% or 0.35%, etc.

[0112] When the above relationship is satisfied, it is possible to facilitate the formation of the anti-reflection film 20 and the anti-glare glass 10, reduce the cost, and at the same time make the specular reflectivity of the glass cover plate 100a lower, so that the image clarity and visual comfort can be better improved, enabling the viewer to comfortably view the content of the display screen 100.

[0113] Among them, the reflectivity R=(n1 - n2) / (n1 + n2), where n1 and n2 are the refractive indices when light enters from medium 1 to medium 2 respectively. That is, n1 is the refractive index of the initial medium where the incident light is located. For example, if light enters the anti-reflection film from air, n1 corresponds to the refractive index of air, and n2 is the refractive index of the second medium that the light enters. In the above example, n2 corresponds to the refractive index of the anti-reflection film.

[0114] This application tested the performance of the glass cover plate 100a with or without the anti-reflection film 20 covered on the anti-glare glass 10. The specific test results are shown in Table 1 below:

[0115] Clarity Reflectance DOI Flash point Total reflectance Specular reflectance An anti-reflection film is not covered on the anti-glare glass 40％ 23％ 2.8％ 5.5％ 0.5％ An anti-reflection film is covered on the anti-glare glass 40％ 10％ 2.8％ 1.7％ 0.15％

[0116] Table 1

[0117] In Table 1 above and Tables 2-7 mentioned later, the clarity is characterized by the contrast. Among them, the contrast refers to the brightness difference between the brightest white and the darkest black in the image; the brightness level relationship from the darkest black to the brightest white in the image is usually characterized by the gray scale. Then, the clarity (contrast) in the table = (gray value of high gray scale pixels - gray value of low gray scale pixels) / (gray value of high gray scale pixels + gray value of low gray scale pixels). Among them, the gray value range of low gray scale pixels is 0-85 (8-bit gray image), and the gray value range of high gray scale pixels is 170-255 (8-bit gray image). And it can be known that the higher the contrast, the more obvious the light and dark difference of the image, the better the details can be shown, which means the clearer the picture displayed on the display screen and the better the visual effect.

[0118] "Reflective DOI" refers to the gloss of the clarity of the reflected image, with the full English name being Distinctness-Of-reflected-Image gloss. It is an aspect of gloss characterized by the sharpness of the image generated by the reflection of an object on the surface. It can usually also be written as Distinctness-Of-Image, abbreviated as DOI, which means the clarity of the image and the brightness of the contour, commonly known as the distinctness of image. That is to say, "reflective DOI" is also called the distinctness of image. Moreover, it can be known that if the value of the reflective DOI is lower, it means that the glare or reflection interference generated by the display screen when reflecting ambient light is less, so it can be displayed more clearly in a bright environment and has a better anti-glare effect.

[0119] It should be noted that when using AG glass, bright spots will appear on the screen surface, and the position of these small bright spots will randomly move as the observer moves. This phenomenon is called flash points. Usually, the measurement method of flash points is as follows: After fixing the screen, take a photo, calculate the standard deviation of the brightness of the originally uniformly displayed area of the screen, and then use this standard deviation of brightness and the average brightness of the screen to characterize the flash points. That is, flash points = standard deviation of the brightness of the originally uniformly displayed area of the screen / average brightness of the screen. Moreover, it can be known that if the value of the flash points is lower, it means that the flash points generated by the display screen are fewer, and the display effect and the visual experience of the user are better.

[0120] The total reflectance is the sum of the specular reflectance and the diffuse reflectance.

[0121] As can be seen from Table 1 above, when an anti-reflection film is covered on the anti-glare glass, compared with the scheme without covering the anti-reflection film on the anti-glare glass, the reflective DOI, the total reflectance, and the specular reflectance are all reduced. Among them, the reflective DOI is reduced from 23% to 10%, the total reflectance is reduced from 5.5% to 1.7%, and the specular reflectance is reduced from 0.5% to 0.15%. It can be seen that by additionally adding an anti-reflection film 20 on the anti-glare glass 10, not only can the total reflectance and the specular reflectance be further reduced, and the anti-glare effect of the glass cover plate 100a be improved; but also the flash points can be effectively reduced, the image clarity and visual comfort can be enhanced, so that the viewer can comfortably view the content of the display screen 100.

[0122] In some embodiments, the ratio of the average reflectance of the anti-reflection film 20 to the reflectance of the anti-glare glass 10 is 1 / 4 - 1 / 2, for example, 1 / 4, 5 / 16, 3 / 8, 7 / 16, or 1 / 2, etc.

[0123] When the ratio of the average reflectivity of the anti-reflection film 20 to the reflectivity of the anti-glare glass 10 is less than 1 / 4, ambient light will be reflected multiple times at the interface between the anti-glare glass 10 and the anti-reflection film 20, possibly forming double images, light spots or "ghost images" (especially in a strong light environment), reducing image clarity; moreover, the overall light transmittance of the glass cover plate may be lower than expected, resulting in insufficient screen brightness and affecting visibility especially in outdoor scenarios. When the ratio of the average reflectivity of the anti-reflection film 20 to the reflectivity of the anti-glare glass 10 is greater than 1 / 2, the reflectivity of the anti-glare glass is too low, its ability to diffuse reflection weakens, and it cannot effectively disperse incident light, resulting in obvious glare still being generated when strong light (such as sunlight) shines directly, reducing screen visibility; moreover, it will also increase the manufacturing difficulty of the anti-glare glass 10, resulting in increased costs.

[0124] Therefore, when the above relationship is satisfied, it is possible to facilitate the processing and formation of the anti-reflection film 20 and the anti-glare glass 10, reduce costs, and at the same time, the image clarity and the overall light transmittance of the glass cover plate can be better improved, so that the viewer can comfortably view the content of the display screen 100.

[0125] As an embodiment, Figure 5 is Figure 4 The schematic structural diagram of the anti-reflection film 20 in some embodiments is shown. The anti-reflection film 20 can be an interference subtractive anti-reflection film. For example, different refractive index film layers can be deposited on the surface of the anti-glare glass 10 by means of sputtering (such as magnetron sputtering, DC sputtering, RF sputtering, reactive sputtering, etc.), electroless plating (such as chemical vapor deposition (Chemical Vapor Deposition, CVD)), etc. The different refractive index film layers constitute the anti-reflection film 20, so that the light waves reflected on the front and back surfaces of the film layer interfere destructively, thereby achieving the anti-reflection effect of interference cancellation, effectively reducing the reflected light, and enabling the glass cover plate 100a to have a better anti-glare effect.

[0126] Specifically, the anti-reflection film 20 may include multiple film layers 21 stacked along the thickness direction of the anti-glare glass 10 (such as Figure 4 、 Figure 5 the up and down direction in), in the direction from the anti-reflection film 20 to the anti-glare glass 10, for example, in Figure 4 、 Figure 5 the downward direction in, the refractive index of each film layer 21 gradually changes.

[0127] As another embodiment, since light reflection occurs when there is a difference in the refractive index of the medium interface through which the light passes, a part of the light will change its original incident direction and return to the original medium. When the refractive index changes abruptly, a small part of the incident light will be consumed in the form of reflection to reduce the reflected light.

[0128] Therefore, an exemplary one is as follows Figure 6 as shown Figure 6 is Figure 4 a schematic structural view of the antireflection film 20 in some other embodiments. A gradient refractive index film layer can be prepared as the antireflection film 20. For example, the gradient refractive index film layer can be prepared by color inkjet printing or by an inclined sputtering process to reduce the specular reflectance and achieve the purpose of improving the antiglare effect. Among them, the gradient refractive index film layer means that the refractive index of the film layer gradually changes along the film thickness direction to eliminate the abruptly changing interface between the film layers, but remains unchanged in the horizontal direction.

[0129] Specifically, the antireflection film 20 is a film layer with a gradually changing refractive index in the direction from the antireflection film 20 to the antiglare glass 10.

[0130] Another exemplary one is as follows Figure 7 as shown Figure 7 is Figure 4 a schematic structural view of the antireflection film 20 in some other embodiments. The antireflection film 20 includes a glass substrate 23 and nanostructures 24. The glass substrate 23 is disposed on the antiglare glass 10, and the nanostructures 24 are formed on the surface of the glass substrate 23 facing away from the antiglare glass 10. At this time, the antireflection film 20 can be called a moth-eye antireflection film, and the nanostructures 24 can be subwavelength structures. Among them, the subwavelength structure refers to a structure similar to that of a moth-eye. According to the effective medium theory (EMT), its structural refractive index is equivalent to that of a multilayer thin film with a gradually changing refractive index, which can achieve a gradual change in refractive index from the air surface to the glass substrate, reduce the difference in refractive index, not only effectively reduce the reflectance, but also solve the process problems between the deposition of multilayer antireflection films and the selection limitations of antireflection film materials.

[0131] Please refer to Figure 8 , Figure 8 which is Figure 3 , Figure 4 a schematic structural view of the antiglare glass 10 in some of its embodiments. The antiglare glass 10 provided in the embodiments of the present application includes a first surface 10a and a second surface 10b. The first surface 10a is the surface of the antiglare glass 10 in its thickness direction (such as Figure 8 the up and down direction in

[0132] In some embodiments, the anti-glare glass 10 provided by the embodiments of the present application further includes a plurality of microstructures 11. The plurality of microstructures 11 are disposed on the first surface 10a. The plurality of microstructures 11 include recesses 111 and / or protrusions 112. That is, the plurality of microstructures 11 may all be recesses 111 (as shown in Figure 8 ), or may all be protrusions 112 (as shown in Figure 9 ), or some of the microstructures 11 may be recesses 111 and another part of the microstructures 11 may be protrusions 112.

[0133] Since the recesses 111 and the protrusions 112 can scatter the light from the external environment to the display screen in all directions, a diffuse reflection is formed on the surface of the anti-glare glass 10, reducing the intensity of the reflected light, thereby achieving the anti-glare effect.

[0134] In the present application, for the sake of convenience of description, a plane parallel to the thickness direction of the anti-glare glass 10 (for example, the up and down direction in Figure 10 ) and passing through the center points of at least two microstructures 11 is defined as the first plane, and a direction in the first plane and perpendicular to the thickness direction of the anti-glare glass 10 is defined as the first direction, for example, the left and right direction in Figure 10 . Wherein, the center point of the microstructure 11 is usually the lowest point of the recess or the highest point of the protrusion.

[0135] In some embodiments, as shown in Figures 8 to 10 , the cross-sectional contour line of the microstructure 11 intercepted by the first plane includes a profile curve 113. The profile curve 113 satisfies the following conditions: the profile curve is fitted by an objective function, the objective function includes a power function, and the average exponent range of each power function is 1.5 - 3, such as 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 or 3, etc.

[0136] The present application fits the profile curves of the microstructures 11 by using power function curves and controls the average exponent range of each power function within the range of 1.5 - 3 to constrain the profile curve characteristics of the microstructures 11, so that the anti-glare glass 10 can simultaneously take into account good anti-glare effect, good clarity and few flash points, etc., so as to obtain an anti-glare glass 10 with good anti-glare effect, good clarity and few flash points.

[0137] Moreover, by using an exponential curve to fit the topography curve 113 of the microstructure 11, the present application can basically completely match the change trend of the entire topography curve 113 of the microstructure 11, thereby facilitating the characterization of the topography curve 113 of the microstructure 11, facilitating the acquisition of all the topography features of the microstructure 11, and further facilitating the preparation of the anti-glare glass 10 with good anti-glare effect, good clarity and few flash points. Or, analyze the influence of the microstructure 11 on clarity and flash points to obtain the anti-glare glass 10 with good anti-glare effect, good clarity and few flash points.

[0138] In some embodiments, the objective function may only include a power function. In other embodiments, the objective function includes a trigonometric function in addition to the power function. That is, in other embodiments, the objective function is a piecewise function, which is at least composed of a power function and a trigonometric function.

[0139] As an embodiment, as Figure 10 shown, in a plane, a position where the curvature of the topography curve 113 is zero is used as the coordinate origin, the first direction is the x-axis, and the thickness direction of the anti-glare glass is the z-axis to establish a rectangular coordinate system.

[0140] As another embodiment, as Figure 11 shown, the cross-sectional contour line of the microstructure 11 intercepted by the first plane includes two topography curves 113 symmetrically arranged with respect to the thickness direction of the anti-glare glass. In the first plane, the symmetric point of the two topography curves 113 is used as the coordinate origin, the first direction is the x-axis, and the thickness direction of the anti-glare glass is the z-axis to establish a rectangular coordinate system.

[0141] In the present application, the topography curve 113 of the microstructure 11 satisfies the following power function formula:

[0142] z = zmax*(x / xmax)^γ;

[0143] Wherein, Figure 10 and Figure 11 the coordinates of point M in are (xmax, zmax), xmax is: the maximum position where the curvature of the topography curve 113 on the x-axis is not zero, zmax is: the highest position where the curvature of the topography curve 113 on the z-axis is not zero, and γ (gamma) is an exponent. x is the abscissa of any point on the x-axis of the topography curve 113, z is the ordinate of any point on the z-axis of the topography curve 113, and the coordinates of any point on the topography curve 113 are (x, z).

[0144] As can be seen from the above function formula, the γ value is actually an exponential value related to curve fitting. By using the power function curve fitting method to characterize the characteristics of the topography curve 113 of the microstructure 11, since this method can characterize the topography curve 113 of the microstructure 11 through a parameter (i.e., the γ value), it can reduce the variables during fitting and increase the fitting degree, with high simplicity and fitting accuracy.

[0145] As Figure 12 and Figure 13 shown, Figure 12 and Figure 13 are both actual pictures of the microstructure. Figure 12 and Figure 13 The fitting regions outlined in red in refer to the locations of the topography curves of the microstructure. Figure 13 The abscissa in is the x-axis with the unit of micrometer (μm), and the ordinate is the z-axis with the unit of micrometer (μm). Figure 13 The coordinates of point M in are (xmax, zmax). Figure 13 The blue curve in represents the power function curve with γ = 2.1. As can be seen from Figure 13 , when γ is adjusted to 2.1, the power function curve and the topography curve of the microstructure basically coincide.

[0146] In order to be able to characterize as much as possible the changes in the γ values corresponding to each microstructure 11 on the entire anti-glare glass 10, and to characterize the characteristics of each microstructure 11 and the corresponding flash point, clarity, and anti-glare effect through the changes in the γ values, it is necessary to obtain at least 50 sets of fitting data on the entire anti-glare glass 10. That is, it is necessary to obtain the γ values corresponding to at least 50 microstructures 11 on the entire anti-glare glass 10 to calculate the average value γave of γ and the standard deviation σγ of γ.

[0147] Among them, γave = (γ1 + γ2 + γ3 + …… + γn) / n.

[0148] σγ = (1 / n - 1)*((γ1 - γave)^2 + (γ2 - γave)^2 + (γ3 - γave)^2 + …… + (γn - γave)^2)^0.5.

[0149] Through the above calculations, the average value γave of γ and the standard deviation σγ of γ are limited so that the characteristics of the topography curves 113 of each microstructure 11 on the anti-glare glass 10 can be approximately the same. For example, the concave and convex shapes and the degrees of concavity and convexity of the topography curves 113 of each microstructure 11 can be approximately the same, so as to control the influence of each microstructure 11 on the flash point, clarity, and anti-glare effect, and obtain an anti-glare glass 10 with good anti-glare effect, good clarity, and few flash points.

[0150] In this application, by adjusting the value of γ, the concavity and convexity shape and degree of the power function curve can be adjusted, so as to adjust the concavity and convexity shape and degree of the topography curve 113 of the microstructure 11, and control the influence of each microstructure 11 on the flash point, clarity, and anti-glare effect.

[0151] Exemplarily, as Figure 14 shown, Figure 14 the abscissa in is the x-axis with the unit of micrometer (μm), and the ordinate is the z-axis with the unit of micrometer (μm). In Figure 14 , the original topography curve of the microstructure, that is, the actual topography curve of the microstructure (i.e., the blue curve), distributes five points, namely A, B, C, D, and E. The curvature of each point is different, and it can be seen from Figure 14 that the radius of curvature of the five points A, B, C, D, and E gradually decreases from left to right. The radius of curvature of the five points A, B, C, D, and E is within the preset range of x1 - x2 (x1 > x2). For example, x1 = 2μm -1 -8μm -1 , x2 = 23μm -1 -30μm -1 . Exemplarily, x1 = 2μm -1 , 3μm -1 , 4μm -1 , 5μm -1 , 6μm -1 , 7μm -1 or 8μm -1 and so on, x2 = 23μm -1 , 24μm -1 , 25μm -1 , 26μm -1 , 27μm -1 , 28μm -1 , 29μm -1 or 30μm -1 and so on. When the radius of curvature of the original topography curve of the microstructure is within the range of x1 - x2, it can meet the anti-glare requirement while facilitating the processing of the microstructure, improve the clarity, and reduce the flash point.

[0152] As Figure 14 shown, when using the power function curve with γ = 2.5 for fitting, it can basically completely match the change of the entire topography curve and all the topography features.

[0153] As Figure 15 shown, Figure 15The abscissa in it is the x-axis with the unit of micrometer (μm), and the ordinate is the z-axis with the unit of micrometer (μm). When γ is adjusted to 2.2, each point of the original topography curve 113 can be basically matched. Thus, it can be seen that using the power function curve fitting method to characterize the specific topography of the microstructure can completely describe the characteristics of the topography curve of the microstructure 11 and effectively obtain the topography characteristics of the microstructure.

[0154] In some embodiments, 1.5 ≤ γave ≤ 2.4. For example, 1.5 ≤ γave ≤ 1.7, 1.7 ≤ γave ≤ 1.8, 1.8 ≤ γave ≤ 1.9, 1.9 ≤ γave ≤ 2.0, 2.0 ≤ γave ≤ 2.1, 2.1 ≤ γave ≤ 2.2, 2.2 ≤ γave ≤ 2.3 or 2.3 ≤ γave ≤ 2.4, etc. Exemplarily, γave = 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3 or 2.4.

[0155] When the above relationship is satisfied, the concave and convex shapes and degrees of the topography curve 113 of the microstructure 11 can be constrained within a suitable range, so that the radius of curvature of the topography curves 113 of more microstructures 11 can be within the range of x1 - x2. Thus, while the microstructure 11 is easy to be processed and formed, the contradiction among the anti-glare effect, flash point, and clarity can be effectively balanced, and then the anti-glare glass 10 with better anti-glare effect and display effect can be prepared.

[0156] Preferably, 1.8 ≤ γave ≤ 2.2. Controlling the average value γave of γ within the range of 1.8 - 2.2 can constrain the concave and convex shapes and degrees of the topography curve 113 of the microstructure 11 within a more suitable range, and enable the radius of curvature of the topography curves 113 of the vast majority of microstructures 11 to be within the range of x1 - x2. Thus, while the microstructure 11 is easy to be processed and formed, the contradiction among the anti-glare effect, flash point, and clarity can be more effectively balanced, and then the anti-glare glass 10 with better anti-glare effect and display effect can be prepared.

[0157] This application has tested the performance of anti-glare glasses with different values of γave. It can be understood that in order to illustrate the influence of γave on the performance of the anti-glare glass 10, variables usually need to be controlled during the test, such as clarity, σD, Dave, S2, and S3 mentioned later.

[0158] Exemplarily, this application has tested the performance of anti-glare glasses 10 with different values of γave when the clarity is 35%, σD = 0.14, Dave = 25, and (S2 + S3) / S1 = 1%. The specific test results are shown in Table 2 below.

[0159] Specific value of γave Clarity Reflectance DOI Flash point γave = 1.3 35％ 28％ 2.0％ γave = 1.5 35％ 23％ 2.3％ γave = 1.8 35％ 20％ 2.5％ γave = 2.1 35％ 15％ 2.8％ γave = 2.2 35％ 16％ 3.0％ γave = 2.4 35％ 18％ 3.5％ γave = 2.8 35％ 20％ 4.7％ γave = 3.0 35％ 22％ 4.9％ γave = 3.3 35％ 30％ 5.8％

[0160] Table 2

[0161] Another exemplary aspect, the present application tested the performance of the anti-glare glass 10 with a clarity of 50%, σD = 0.14, Dave = 25, (S2 + S3) / S1 = 1%, and different values of γave. The specific test results are shown in Table 3 below.

[0162] Specific value of γave Clarity Reflectance DOI Flash point γave = 1.5 50％ 35％ 2.1％ γave = 1.8 50％ 32％ 2.3％ γave = 2.0 50％ 30％ 2.5％ γave = 2.1 50％ 28％ 3.5％ γave = 2.2 50％ 29％ 4.2％ γave = 2.4 50％ 30％ 5.0％

[0163] Table 3

[0164] As can be seen from Table 2 and Table 3 above, as γave increases, the reflected DOI first decreases and then increases, while the flash point gradually increases.

[0165] As can be seen from Table 2 above, when γave is less than 1.5, although the flash point is relatively small, the reflected DOI is relatively high, making it difficult for the display screen to be clearly displayed in a bright environment; when γave is greater than 3.0, not only is the reflected DOI relatively high, making it difficult for the display screen to be clearly displayed in a bright environment, but also the flash point is relatively large, affecting the display effect and the user's visual experience. Therefore, the present application controls γave within the range of 1.5 - 3.0, which can make the display screen clearly displayed in a bright environment, with a good anti-glare effect, while reducing the flash point and improving the display effect and the user's visual experience.

[0166] Comparing Table 2 and Table 3, when 1.8 ≤ γave ≤ 2.2, while satisfying that the flash point is lower than 5% and the reflected DOI is lower than 35%, the clarity can reach 50%. Therefore, the present application preferably controls it within the range of 1.8 - 2.2, so as to effectively balance the contradiction among the anti-glare effect, the flash point, and the clarity, and then a better anti-glare glass 10 with better anti-glare effect and display effect can be prepared.

[0167] In some embodiments, 0.04 < σγ < 0.15, such as 0.04 < σγ < 0.05, 0.05 ≤ σγ < 0.06, 0.06 ≤ σγ < 0.07, 0.07 ≤ σγ < 0.08, 0.08 ≤ σγ < 0.09, 0.09 ≤ σγ < 0.1, 0.1 ≤ σγ < 0.13, or 0.13 ≤ σγ < 0.15, etc. Exemplarily, σγ = 0.045, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.11, 0.12, 0.13, 0.14, or 0.145, etc.

[0168] When the above - mentioned relational expressions are satisfied, the characteristics of the profile curves 113 of most of the microstructures 11 on the anti - glare glass 10 can be approximately the same. For example, it is possible to make the γ values corresponding to the profile curves 113 of most of the microstructures 11 fall within the range of 1.5 - 2.4 as much as possible, so that the concave - convex shapes and degrees of the profile curves 113 of each microstructure 11 can be approximately the same, in order to control the influence of each microstructure 11 on the flash point, clarity, and anti - glare effect, and obtain the anti - glare glass 10 with good anti - glare effect, good clarity, and few flash points.

[0169] Preferably, 0.05 < σγ < 0.08. Controlling the average value σγ of γ within the range of 0.05 - 0.08 can make the characteristics of the profile curves 113 of each microstructure 11 on the anti - glare glass 10 approximately the same. For example, it is possible to make the γ values corresponding to the profile curves 113 of each microstructure 11 fall within the range of 1.5 - 2.4 as much as possible, so that the concave - convex shapes and degrees of the profile curves 113 of each microstructure 11 can be approximately the same, in order to control the influence of each microstructure 11 on the flash point, clarity, and anti - glare effect, and obtain the anti - glare glass 10 with better anti - glare effect, better clarity, and fewer flash points.

[0170] The applicant has found through research that: the area ratio of the planar region on the glass surface affects the anti - glare effect of the anti - glare glass. The smaller the area ratio of the planar region on the glass surface, the better the anti - glare effect of the anti - glare glass. Therefore, in order to improve the anti - glare effect as much as possible and exert the light - scattering ability in the fixed region, it is necessary to reduce the area ratio of the planar region on the glass surface.

[0171] In addition, the applicant has also found through research that: the planar region is mainly distributed in two places: one is the central position of the microstructure, such as the bottom surface of the concave part or the top surface of the convex part; the other is the intersection position of two adjacent microstructures.

[0172] In some embodiments, as Figure 16 shown, an edge is formed at the intersection of two adjacent microstructures 11, or the intersection of two adjacent microstructures 11 is smoothly transitioned. In this way, it is possible to avoid the formation of a planar region at the intersection of two adjacent microstructures 11, so as to avoid the reflection of light on the planar region, thereby reducing the specular reflectance and improving the anti - glare effect of the anti - glare glass.

[0173] In some embodiments, as Figure 17 shown, the cross - sectional contour line obtained by intercepting the microstructure 11 with a first plane includes the thickness direction of the anti - glare glass (such as Figure 17Two profile curves 113 symmetrically arranged in the up-down direction (in [reference], the up-down direction), the connection between the two profile curves 113 is smoothly transitioned, or, an edge is formed at the connection between the two profile curves 113. In this way, it is possible to avoid forming a flat area at the connection between the two profile curves 113, that is, to avoid forming a flat area on the bottom surface of the concave part or the top surface of the convex part, so as to prevent light from being reflected on the flat area, thereby reducing the specular reflectance and improving the anti-glare effect of the anti-glare glass 10.

[0174] In the present application, two adjacent microstructures 11 are connected by a connection surface 115, and each microstructure 11 includes a third surface 11a and a fourth surface 11b. When the microstructure 11 is a concave part, the third surface 11a can be understood as the bottom surface of the concave part, and when the microstructure 11 is a convex part, the third surface 11a can be understood as the top surface of the protrusion, and the fourth surface 11b is connected around the perimeter of the third surface 11a.

[0175] In some embodiments, the anti-glare glass 10 further includes a non-planar surface 116, the non-planar surface 116 includes the connection surface 115 connecting between two adjacent microstructures 11, and / or, the non-planar surface 116 includes the third surface 11a of the microstructure 11, wherein, the non-planar surface 116 can be understood as a curved surface, an arc surface, etc.

[0176] Through the above design, that is, designing the connection surface 115 connecting between two adjacent microstructures 11, and / or, designing the third surface 11a of the microstructure 11 as the non-planar surface 116, in this way, it is possible to avoid forming a flat area at the intersection of two adjacent microstructures 11, and / or, to avoid forming a flat area on the bottom surface of the concave part or the top surface of the convex part, so as to prevent light from being reflected on the flat area, thereby reducing the specular reflectance and improving the anti-glare effect of the anti-glare glass 10.

[0177] In some embodiments, as Figure 18 shown, the first plane passes through the center points of two adjacent microstructures 11, and in the first plane, the direction perpendicular to the thickness direction of the anti-glare glass is the first direction. For example, the thickness direction of the anti-glare glass can be understood as Figure 18 the up-down direction in [reference], and the first direction can be understood as Figure 18 the left-right direction in [reference]. The cross-sectional contour line of the connection surface 115 intercepted by the first plane is the first intercept line, the cross-sectional contour line of the third surface 11a intercepted by the first plane is the second intercept line, and the cross-sectional contour line of the fourth surface 11b intercepted by the first plane includes two profile curves 113 arranged at intervals, and the second intercept line is connected between the two profile curves 113.

[0178] For two adjacent microstructures 11 whose central points are located in the first plane, the maximum dimension of one microstructure 11 in the first direction is W1, the maximum dimension of the other microstructure 11 in the first direction is W2, and the distance between the two adjacent microstructures 11 in the first direction is M. The dimension of the first cross-section in the first direction is L1 (where L1 = M), the dimension of the second cross-section of one microstructure 11 in the first direction is L2, and the dimension of the second cross-section of the other microstructure 11 in the first direction is L3.

[0179] Moreover, the area of the first surface 10a is S1, the sum of the projected areas of the connecting surfaces 115 on the first surface is S2, and the sum of the projected areas of the third surfaces 11a on the first surface is S3.

[0180] In some embodiments, 2L1 / (W1 + L1 + W2) ≤ 5%, for example, 0 < 2L1 / (W1 + L1 + W2) ≤ 1%, 1% ≤ 2L1 / (W1 + L1 + W2) ≤ 2%, 2% ≤ 2L1 / (W1 + L1 + W2) ≤ 3%, 3% ≤ 2L1 / (W1 + L1 + W2) ≤ 4% or 4% ≤ 2L1 / (W1 + L1 + W2) ≤ 5%, etc. Exemplarily, 2L1 / (W1 + L1 + W2) = 0.1%, 0.02%, 0.3%, 0.04%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5%, etc.

[0181] When the above relationship is satisfied, the dimension of the first cross-section in the first direction is relatively short, and the connecting surface 115 can be approximately regarded as an edge rather than a plane, so as to avoid forming a planar area at the intersection of two adjacent microstructures 11, avoid light reflection on the planar area, thereby reducing the specular reflectance and improving the anti-glare effect of the anti-glare glass.

[0182] In some embodiments, L2 / (W1 + M / 2) ≤ 5%, for example, 0 < L2 / (W1 + M / 2) ≤ 1%, 1% ≤ L2 / (W1 + M / 2) ≤ 2%, 2% ≤ L2 / (W1 + M / 2) ≤ 3%, 3% ≤ L2 / (W1 + M / 2) ≤ 4% or 4% ≤ L2 / (W1 + M / 2) ≤ 5%, etc. Exemplarily, L2 / (W1 + M / 2) = 0.1%, 0.02%, 0.3%, 0.04%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5%, etc. Moreover, L3 / (W2 + M / 2) ≤ 5%, for example, 0 < L3 / (W2 + M / 2) ≤ 1%, 1% ≤ L3 / (W2 + M / 2) ≤ 2%, 2% ≤ L3 / (W2 + M / 2) ≤ 3%, 3% ≤ L3 / (W2 + M / 2) ≤ 4% or 4% ≤ L3 / (W2 + M / 2) ≤ 5%, etc. Exemplarily, L3 / (W2 + M / 2) = 0.1%, 0.02%, 0.3%, 0.04%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5%, etc.

[0183] When the above relationships are satisfied: L2 / (W1 + M / 2) ≤ 5% and L3 / (W2 + M / 2) ≤ 5%, the dimension of the second intercept line in the first direction is relatively short, and then the third surface 11a can be approximately regarded as an edge rather than a plane, which can avoid forming a flat area on the bottom surface of the concave part or the top surface of the convex part, so as to avoid light reflection on the flat area, thereby reducing the specular reflectance and improving the anti-glare effect of the anti-glare glass.

[0184] It can be understood that when the curvature of the first intercept line is less than 0.01 μm -1 , and 2L1 / (W1 + L1 + W2) > 5%, the first intercept line can be approximately regarded as a straight line, and the connecting surface 115 can be approximately regarded as a plane.

[0185] Therefore, in some embodiments, S2 / S1 ≤ 10%, for example, 0 < S2 / S1 ≤ 0.01%, 0.01% < S2 / S1 ≤ 0.03%, 0.03% < S2 / S1 ≤ 0.05%, 0.05% < S2 / S1 ≤ 0.07%, 0.07% < S2 / S1 ≤ 0.09%, 0.09% < S2 / S1 ≤ 1%, 1% < S2 / S1 ≤ 2%, 2% < S2 / S1 ≤ 3%, 3% < S2 / S1 ≤ 4%, 4% < S2 / S1 ≤ 5%, 5% < S2 / S1 ≤ 6%, 6% < S2 / S1 ≤ 7%, 7% < S2 / S1 ≤ 8%, 8% < S2 / S1 ≤ 9% or 9% < S2 / S1 ≤ 10%, etc. Exemplarily, S2 / S1 = 0.005%, 0.01%, 0.015%, 0.02%, 0.025%, 0.03%, 0.035%, 0.04%, 0.045%, 0.05%, 0.055%, 0.06%, 0.065%, 0.07%, 0.075%, 0.08%, 0.085%, 0.09%, 0.095%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5% or 10%, etc.

[0186] When the above relationship is satisfied, the area ratio of the connection surface 115 on the first surface can be reduced, and the area ratio of the planar region on the first surface can be reduced. Thereby, it is beneficial to reduce the light reflectivity of the anti-glare glass and improve the light scattering ability of the anti-glare glass, so as to effectively improve the anti-glare effect of the anti-glare glass, make the anti-glare glass have a good anti-glare effect, and enable the viewer to comfortably view the content of the display screen.

[0187] Preferably, S2 / S1 ≤ 1%. In this way, the area ratio of the connection surface 115 on the first surface can be further reduced, the area ratio of the planar region on the first surface can be further reduced, the light reflectivity of the anti-glare glass can be further reduced, and the light scattering ability of the anti-glare glass can be further improved. Thereby, the anti-glare effect of the anti-glare glass can be further improved, and it has a better anti-glare effect, enabling the viewer to comfortably view the content of the display screen.

[0188] This application tested the performance of anti-glare glasses with different values of S2 / S1. The specific test results are shown in Table 4 below:

[0189]

[0190]

[0191] Table 4

[0192] As can be seen from Table 4 above, as the ratio of S2 to S1 increases, the reflected DOI gradually increases while the flash point gradually decreases. When S2 / S1 ≤ 10%, the reflected DOI can be reduced to within a range less than 35%. Therefore, in this application, the ratio of S2 to S1 is controlled within a range less than or equal to 10%, which is beneficial to reducing the light reflectivity of the anti-glare glass and enhancing the light scattering ability of the anti-glare glass, thereby effectively improving the anti-glare effect of the anti-glare glass, enabling the anti-glare glass to have a good anti-glare effect, so that viewers can comfortably view the content of the display screen.

[0193] Similarly, when the curvature of the second intercept line is less than 0.01 μm -1 , L2 / (W1 + M / 2) > 5%, and L3 / (W2 + M / 2) > 5%, the second intercept line can be approximately regarded as a straight line, and the third surface 11a can be approximately regarded as a plane.

[0194] Therefore, in some embodiments, S3 / S1 ≤ 10%, for example, 0 < S3 / S1 ≤ 0.01%, 0.01% < S3 / S1 ≤ 0.03%, 0.03% < S3 / S1 ≤ 0.05%, 0.05% < S3 / S1 ≤ 0.07%, 0.07% < S3 / S1 ≤ 0.09%, 0.09% < S3 / S1 ≤ 1%, 1% < S3 / S1 ≤ 2%, 2% < S3 / S1 ≤ 3%, 3% < S3 / S1 ≤ 4%, 4% < S3 / S1 ≤ 5%, 5% < S3 / S1 ≤ 6%, 6% < S3 / S1 ≤ 7%, 7% < S3 / S1 ≤ 8%, 8% < S3 / S1 ≤ 9% or 9% < S3 / S1 ≤ 10%, etc. Exemplarily, S3 / S1 = 0.005%, 0.01%, 0.015%, 0.02%, 0.025%, 0.03%, 0.035%, 0.04%, 0.045%, 0.05%, 0.055%, 0.06%, 0.065%, 0.07%, 0.075%, 0.08%, 0.085%, 0.09%, 0.095%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5% or 10%, etc.

[0195] When the above relationship is satisfied, it is possible to reduce the area ratio of the third surface 11a on the first surface and reduce the area ratio of the flat area on the first surface, which is beneficial to reducing the light reflectivity of the anti-glare glass and enhancing the light scattering ability of the anti-glare glass, thereby effectively improving the anti-glare effect of the anti-glare glass, enabling the anti-glare glass to have a good anti-glare effect, so that viewers can comfortably view the content of the display screen.

[0196] Preferably, S3 / S1 ≤ 1%. In this way, the area ratio of the third surface 11a on the first surface can be further reduced, the area ratio of the flat area on the first surface can be further reduced, the light reflectivity of the anti-glare glass can be further reduced, and the light scattering ability of the anti-glare glass can be further improved, so that the anti-glare effect of the anti-glare glass can be further improved, with a better anti-glare effect, enabling the viewer to comfortably view the content of the display screen.

[0197] This application tested the performance of anti-glare glass with different S3 / S1 values, and the specific test results are shown in Table 5 below:

[0198] Specific value of S3 / S1 Reflectance DOI Flash point S3 / S1 = 0.5 15％ 2.8％ S3 / S1 = 1 18％ 2.7％ S3 / S1 = 5 23％ 2.6％ S3 / S1 = 10 28％ 2.4％ S3 / S1 = 12 37％ 2.3％ S3 / S1 = 20 40％ 2.2％

[0199] Table 5

[0200] As can be seen from Table 5 above, as the ratio of S3 to S1 increases, the reflected DOI gradually increases while the flash point gradually decreases. When S3 / S1 ≤ 10%, the reflected DOI can be reduced to within a range less than 35%. Therefore, this application controls the ratio of S3 to S1 within a range less than or equal to 10%, which is beneficial to reducing the light reflectivity of the anti-glare glass and improving the light scattering ability of the anti-glare glass, so that the anti-glare effect of the anti-glare glass can be effectively improved, enabling the anti-glare glass to have a good anti-glare effect and enabling the viewer to comfortably view the content of the display screen.

[0201] When the curvature of the first cross-section is less than 0.01 μm -1 , and 2L1 / (W1 + L1 + W2) > 5%, and when the curvature of the second cross-section is less than 0.01 μm -1When L2 / (W1 + M / 2) > 5% and L3 / (W2 + M / 2) > 5%, (S2 + S3) / S1 ≤ 10%. For example, 0 < (S2 + S3) / S1 ≤ 0.01%, 0.01% < (S2 + S3) / S1 ≤ 0.03%, 0.03% < (S2 + S3) / S1 ≤ 0.05%, 0.05% < (S2 + S3) / S1 ≤ 0.07%, 0.07% < (S2 + S3) / S1 ≤ 0.09%, 0.09% < (S2 + S3) / S1 ≤ 1%, 1% < (S2 + S3) / S1 ≤ 2%, 2% < (S2 + S3) / S1 ≤ 3%, 3% < (S2 + S3) / S1 ≤ 4%, 4% < (S2 + S3) / S1 ≤ 5%, 5% < (S2 + S3) / S1 ≤ 6%, 6% < (S2 + S3) / S1 ≤ 7%, 7% < (S2 + S3) / S1 ≤ 8%, 8% < (S2 + S3) / S1 ≤ 9% or 9% < (S2 + S3) / S1 ≤ 10%, etc. Exemplarily, (S2 + S3) / S1 = 0.005%, 0.01%, 0.015%, 0.02%, 0.025%, 0.03%, 0.035%, 0.04%, 0.045%, 0.05%, 0.055%, 0.06%, 0.065%, 0.07%, 0.075%, 0.08%, 0.085%, 0.09%, 0.095%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5% or 10%, etc.

[0202] When the above - mentioned relational expressions are satisfied, the area ratio of the planar region on the first surface can be reduced, which is beneficial to reducing the light reflectivity of the anti - glare glass, enhancing the light scattering ability of the anti - glare glass, and thus effectively improving the anti - glare effect of the anti - glare glass, enabling the anti - glare glass to have a good anti - glare effect so that the viewer can comfortably view the content of the display screen.

[0203] Preferably, (S2 + S3) / S1 ≤ 1%. In this way, the area ratio of the planar region on the first surface can be further reduced, the light reflectivity of the anti - glare glass can be further reduced, the light scattering ability of the anti - glare glass can be further enhanced, and thus the anti - glare effect of the anti - glare glass can be further improved, having a better anti - glare effect so that the viewer can comfortably view the content of the display screen.

[0204] This application tested the performance of anti - glare glasses with different values of (S2 + S3) / S1, and the specific test results are as follows

[0205] as shown in Table 6:

[0206] (S2 + S3) / S1 specific value Reflectance DOI Flash point (S2 + S3) / S1 = 0.5 15％ 2.8％ (S2 + S3) / S1 = 1 18％ 2.6％ (S2 + S3) / S1 = 5 25％ 2.5％ (S2 + S3) / S1 = 10 30％ 2.3％ (S2 + S3) / S1 = 12 37％ 2.2％ (S2 + S3) / S1 = 20 40％ 2.2％ (S2 + S3) / S1 = 30 45％ 2.1％

[0207] Table 6

[0208] As can be seen from Table 6 above, as (S2 + S3) / S1 increases, the reflected DOI gradually increases while the flash point gradually decreases. When (S2 + S3) / S1 ≤ 10%, the reflected DOI can be reduced to within a range less than 35%. Therefore, in this application, (S2 + S3) / S1 is controlled within a range less than or equal to 10%, which is beneficial to reducing the light reflectivity of the anti-glare glass and enhancing the light scattering ability of the anti-glare glass, thereby effectively improving the anti-glare effect of the anti-glare glass, enabling the anti-glare glass to have a good anti-glare effect, so that viewers can comfortably view the content of the display screen.

[0209] The applicant has found through research that when multiple microstructures 11 are arranged in a certain rule, for example, when multiple microstructures 11 are evenly arranged on the first surface, it will seriously affect the anti-glare effect of the anti-glare glass, and after the anti-glare glass is set on the display screen, it is easy to interfere with the pixels to form Moire patterns.

[0210] Therefore, the applicant has also imposed constraints on the arrangement of the microstructures 11, mainly using the following two parameters for constraint: one is the disorder degree of the arrangement of the microstructures 11, and the other is the average spacing of the microstructures 11, that is, the average value of the spacing of the microstructures 11.

[0211] Among them, the disorder degree of the arrangement of the microstructures 11 is mainly characterized by the standard deviation of the spacing of the microstructures 11.

[0212] In this application, for the convenience of description, the spacing between the center points of two adjacent microstructures 11 is configured as D, the standard deviation of D is configured as σD, and the average value of D is configured as Dave.

[0213] Among them, σD = (1 / n - 1)*((D1 - Dave)^2 + (D2 - Dave)^2 + (D3 - Dave)^2 + …… + (Dn - Dave)^2)^0.5.

[0214] Dave = (D1 + D2 + D3 + …… + Dn) / n.

[0215] Among them, the spacing D between the center points of two adjacent microstructures 11 can be measured separately or tested by an image processing method, and the method is not limited.

[0216] By counting the distances D between the center points of all adjacent two microstructures 11 within a certain area (for example, the number of microstructures 11 is greater than 5000), and recording them as D1, D2, D3... Dn, and then calculating the standard deviation, the standard deviation σD of D can be obtained, so as to obtain the degree of disorder in the arrangement of the microstructures 11. Then, the larger the σD, the greater the degree of disorder in the arrangement of the microstructures 11, and the more chaotic and irregular the arrangement of multiple microstructures; the smaller the σD, the smaller the degree of disorder in the arrangement of the microstructures 11, and the more orderly and regular the arrangement of multiple microstructures.

[0217] By counting the distances D between the center points of all adjacent two microstructures 11 within a certain area (for example, the number of microstructures 11 is greater than 5000), and recording them as D1, D2, D3... Dn, and then calculating the average value; the average value Dave of D can be obtained.

[0218] In some embodiments, 0 < σD ≤ 5μm, or, 0.10μm < σD ≤ 5μm. For example, 0 < σD ≤ 0.1μm, 0.1μm < σD ≤ 0.2μm, 0.2μm < σD ≤ 0.3μm, 0.4μm < σD ≤ 0.5μm, 0.5μm < σD ≤ 0.7μm, 0.7μm < σD ≤ 0.9μm, 0.9μm < σD ≤ 1μm, 1μm < σD ≤ 1.5μm, 1.5μm < σD ≤ 2μm, 2μm < σD ≤ 2.5μm, 2.5μm < σD ≤ 3μm, 3μm < σD ≤ 3.5μm, 3.5μm < σD ≤ 4μm, 4μm < σD ≤ 4.5μm or 4.5μm < σD ≤ 5μm, etc. Exemplarily, σD = 0.03μm, 0.05μm, 0.07μm, 0.09μm, 0.1μm, 0.15μm, 0.2μm, 0.25μm, 0.3μm, 0.35μm, 0.4μm, 0.45μm, 0.5μm, 0.55μm, 0.6μm, 0.65μm, 0.7μm, 0.75μm, 0.8μm, 0.85μm, 0.9μm, 0.95μm, 1μm, 1.3μm, 1.5μm, 1.7μm, 1.9μm, 2μm, 2.2μm, 2.5μm, 2.7μm, 3μm, 3.3μm, 3.5μm, 3.8μm, 4μm, 4.3μm, 4.5μm, 4.8μm or 5μm, etc.

[0219] When the above relationship is satisfied, multiple microstructures 11 can be arranged irregularly on the first surface 10a to avoid the arrangement of multiple microstructures 11 in a certain rule. For example, to avoid the uniform arrangement of multiple microstructures 11 on the first surface, thereby reducing or eliminating the moiré pattern generated when the anti-glare glass is used in combination with the display module. Thus, the clarity when the anti-glare glass is used in combination with the display module can be effectively improved, and the display effect and the visual experience of the user can be enhanced.

[0220] Preferably, 0.5 μm ≤ σD ≤ 1 μm. When the above relationship is satisfied, while avoiding the arrangement of the microstructures 11 being too sparse to ensure the anti-glare effect, the plurality of microstructures 11 can be arranged irregularly on the first surface, reducing or eliminating the moiré pattern generated when the anti-glare glass is used in combination with the display module. Thereby, the clarity of the anti-glare glass used in combination with the display module can be effectively improved, and the display effect and the visual experience of the user can be enhanced.

[0221] In some embodiments, 10 μm ≤ Dave ≤ 60 μm. For example, 10 μm ≤ Dave ≤ 15 μm, 15 μm ≤ Dave ≤ 20 μm, 20 μm ≤ Dave ≤ 25 μm, 25 μm ≤ Dave ≤ 30 μm, 30 μm ≤ Dave ≤ 35 μm, 35 μm ≤ Dave ≤ 40 μm, 40 μm ≤ Dave ≤ 45 μm, 45 μm ≤ Dave ≤ 50 μm, 50 μm ≤ Dave ≤ 55 μm, or 55 μm ≤ Dave ≤ 60 μm, etc. Exemplarily, Dave = 10 μm, 12 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, 21 μm, 22 μm, 23 μm, 24 μm, 25 μm, 26 μm, 27 μm, 28 μm, 29 μm, 30 μm, 32 μm, 35 μm, 38 μm, 40 μm, 43 μm, 45 μm, 47 μm, 50 μm, 52 μm, 54 μm, 55 μm, 57 μm, 58 μm, 59 μm, or 60 μm, etc.

[0222] If Dave < 10 μm, the number of microstructures increases, thus increasing the manufacturing difficulty of the anti-glare glass; while when Dave > 60 μm, the number of microstructures decreases, making it easier for the plurality of microstructures to be arranged in a certain rule, thus prone to generating moiré patterns. Therefore, in this application, Dave is controlled within the range of 10 μm - 60 μm, which can reduce the manufacturing difficulty of the anti-glare glass to reduce costs, and at the same time avoid the plurality of microstructures 11 being arranged in a certain rule, for example, avoiding the plurality of microstructures 11 being evenly arranged on the first surface, thereby reducing or eliminating the moiré pattern generated when the anti-glare glass is used in combination with the display module. Thereby, the clarity of the anti-glare glass used in combination with the display module can be effectively improved, and the display effect and the visual experience of the user can be enhanced.

[0223] Preferably, 15μm ≤ Dave ≤ 30μm. When the above relationship is satisfied, while the manufacturing difficulty of the anti-glare glass can be further reduced to further reduce the cost, multiple microstructures 11 can be arranged on the first surface more irregularly, further reducing or eliminating moiré patterns generated when the anti-glare glass is used in combination with a display module. Thus, the clarity of the anti-glare glass when used in combination with a display module can be greatly improved, and the display effect and the visual experience of the user can be greatly enhanced.

[0224] This application tested the performance of the anti-glare glass 10 with different values of σD and Dave. The specific test results are shown in Table 7 below:

[0225]

[0226]

[0227] Table 7

[0228] As can be seen from Table 7 above, when σD = 0, the reflected DOI is as high as 80%, and the anti-glare effect and display effect are poor; when σD > 0, the reflected DOI decreases, but when Dave < 15μm or Dave > 60μm, the flash point is relatively high, higher than 5%, and the display screen generates relatively more flash points, resulting in poor visual comfort for viewers; when σD < 5μm, the flash point is still relatively high, approximately 5%, and the display screen generates relatively more flash points, resulting in poor visual comfort for viewers. Therefore, controlling σD within the range of 0 - 5μm and, on this basis, controlling Dave within the range of 10μm - 60μm can reduce or eliminate moiré patterns generated when the anti-glare glass is used in combination with a display module, so as to improve the clarity of the anti-glare glass while reducing the flash point and improving the visual comfort of viewers.

[0229] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0230] In addition, the above-described embodiments only represent several implementation manners of this application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of this application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several deformations and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the content of this specification should not be construed as a limitation on this application, and the protection scope of this application should be subject to the appended claims.

Claims

1. An anti-glare glass, characterized in that: The anti-glare glass comprises: a first surface, the first surface being a surface of the anti-glare glass in a thickness direction thereof; and A plurality of microstructures, wherein the plurality of microstructures are arranged on the first surface, the plurality of microstructures include concave portions and / or convex portions, and a cross-sectional contour line of the microstructure intercepted by the first plane includes a topography curve, and the topography curve satisfies the following condition: the topography curve is fitted by an objective function, the objective function includes a power function, and an average exponent range of each power function is 1.5-3; Wherein, the first plane is: a plane parallel to the thickness direction of the anti-glare glass and passing through the center points of at least two of the microstructures.

2. The anti-glare glass according to claim 1, characterized in that: A direction in the first plane and perpendicular to the thickness direction of the anti-glare glass is a first direction; A rectangular coordinate system is established with the position where the curvature of the topography curve is zero as the coordinate origin, the first direction as the x-axis, and the thickness direction of the anti-glare glass as the z-axis; or, a cross-sectional contour line of the microstructure intercepted by the first plane includes two topography curves symmetrically arranged with respect to the thickness direction of the anti-glare glass, and a rectangular coordinate system is established with the symmetric points of the two topography curves as the coordinate origin, the first direction as the x-axis, and the thickness direction of the anti-glare glass as the z-axis; The topography curve satisfies the following power function formula: z=zmax*(x / xmax)^γ; Wherein, xmax is the maximum position where the curvature of the topography curve is not zero on the x-axis, zmax is the highest position where the curvature of the topography curve is not zero on the z-axis, and γ is an exponent.

3. The anti-glare glass according to claim 2, characterized in that: γave is the average value of γ, where 1.5≤γave≤2.

4.

4. The anti-glare glass according to claim 3, characterized in that: 1.8≤γave≤2.

2.

5. The anti-glare glass according to claim 2, characterized in that: σγ is the standard deviation of γ, where 0.04<σγ<0.

15.

6. The anti-glare glass according to claim 5, characterized in that: 0.05<σγ<0.

08.

7. The anti-glare glass according to claim 1, characterized in that: The intersection of two adjacent microstructures forms an edge, or the intersection of two adjacent microstructures has a smooth transition; and / or, The cross-sectional contour line of the microstructure intercepted by the first plane includes two morphological curves symmetrically arranged with respect to the thickness direction of the anti-glare glass, and the connection between the two morphological curves is smoothly transitioned, or an edge is formed at the connection between the two.

8. The anti-glare glass according to claim 1, characterized in that: Two adjacent microstructures are connected via a connecting surface; The first plane passes through the center points of two adjacent microstructures, and the direction in the first plane and perpendicular to the thickness direction of the anti-glare glass is the first direction, and the cross-sectional contour line of the connecting surface intercepted by the first plane is the first section line; For two adjacent microstructures whose center points are located in the first plane, the maximum size of one of the microstructures in the first direction is W1, the maximum size of the other microstructure in the first direction is W2, and the size of the first section line in the first direction is L1; Among them, 2L1 / (W1+L1+W2)≤5%.

9. The anti-glare glass according to claim 1, characterized in that: Two adjacent microstructures are connected via a connecting surface; The first plane passes through the center points of two adjacent microstructures, and the direction in the first plane and perpendicular to the thickness direction of the anti-glare glass is the first direction, and the cross-sectional contour line of the connecting surface intercepted by the first plane is the first section line; For two adjacent microstructures whose center points are located in the first plane, the maximum size of one of the microstructures in the first direction is W1, the maximum size of the other microstructure in the first direction is W2, and the size of the first section line in the first direction is L1; The area of ​​the first surface is S1, and the sum of the projection areas of the connecting surfaces on the first surface is S2; Wherein, the curvature of the first section line is less than 0.01 μm -1 , and when 2L1 / (W1+L1+W2)>5%, S2 / S1≤10%.

10. The anti-glare glass according to claim 9, characterized in that: S2 / S1≤1%.

11. The anti-glare glass according to claim 1, characterized in that: The microstructure includes a third surface and a fourth surface, wherein the fourth surface is connected around the periphery of the third surface; The first plane passes through the center points of two adjacent microstructures, and the direction in the first plane and perpendicular to the thickness direction of the anti-glare glass is the first direction, the cross-sectional contour line of the third surface intercepted by the first plane is the second section line, the cross-sectional contour line of the fourth surface intercepted by the first plane includes two morphological curves arranged at intervals, and the second section line is connected between the two morphological curves; For two adjacent microstructures whose center points are located in the first plane, the maximum size of one of the microstructures in the first direction is W1, the maximum size of the other microstructure in the first direction is W2, the distance between the two adjacent microstructures in the first direction is M, the size of the second section line of one of the microstructures in the first direction is L2, and the size of the second section line of the other microstructure in the first direction is L3; Among them, L2 / (W1+M / 2)≤5%, L3 / (W2+M / 2)≤5%.

12. The anti-glare glass according to claim 1, characterized in that: The microstructure includes a third surface and a fourth surface, wherein the fourth surface is connected around the periphery of the third surface; The first plane passes through the center points of two adjacent microstructures, and the direction in the first plane and perpendicular to the thickness direction of the anti-glare glass is the first direction, the cross-sectional contour line of the third surface intercepted by the first plane is the second section line, the cross-sectional contour line of the fourth surface intercepted by the first plane includes two morphological curves arranged at intervals, and the second section line is connected between the two morphological curves; For two adjacent microstructures whose center points are located in the first plane, the maximum size of one of the microstructures in the first direction is W1, the maximum size of the other microstructure in the first direction is W2, the distance between the two adjacent microstructures in the first direction is M, the size of the second section line of one of the microstructures in the first direction is L2, and the size of the second section line of the other microstructure in the first direction is L3; The area of ​​the first surface is S1, and the sum of the projection areas of the third surface on the first surface is S3; Wherein, the curvature of the second section line is less than 0.01 μm -1 , L2 / (W1+M / 2)>5%, and L3 / (W2+M / 2)>5%, S3 / S1≤10%.

13. The anti-glare glass according to claim 12, characterized in that: S3 / S1≤1%.

14. The anti-glare glass according to claim 12, characterized in that: Two adjacent microstructures are connected via a connecting surface, the sum of the projection areas of the connecting surfaces on the first surface is S2, and the cross-sectional contour line of the connecting surface cut by the first plane is a first section line; For two adjacent microstructures whose center points are located in the first plane, the size of the first section line in the first direction is L1; The curvature of the first section line is less than 0.01 μm -1 Under the conditions, 2L1 / (W1+L1+W2)>5%, (S2+S3) / S1≤10%.

15. The anti-glare glass according to claim 14, characterized in that: (S2+S3) / S1≤1%.

16. The anti-glare glass according to any one of claims 1 to 14, characterized in that: The distance between the center points of two adjacent microstructures is D, and σD is the standard deviation of D; Among them, 0<σD≤5μm, or, 0.10μm<σD≤5μm.

17. The anti-glare glass according to claim 16, characterized in that: 0.5μm≤σD≤1μm.

18. The anti-glare glass according to claim 16, characterized in that: Dave is the average value of D, where 10 μm≤Dave≤60 μm.

19. The anti-glare glass according to claim 18, characterized in that: 15μm≤Dave≤30μm.

20. A glass cover plate, characterized in that: The glass cover plate comprises the anti-glare glass as described in any one of claims 1-18.

21. The glass cover plate according to claim 20, characterized in that: The glass cover plate further includes an anti-reflection film, and the anti-reflection film is disposed on the first surface of the anti-glare glass.

22. A display screen, characterized in that: The display screen includes the anti-glare glass as described in any one of claims 1 to 19, or the display screen includes the glass cover plate as described in claim 20 or 21.

23. An electronic device, characterized in that: The electronic device has the display screen as claimed in claim 22.

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