Glass cover plate, display screen and electronic equipment

Abstract

The utility model discloses a glass cover plate, a display screen and electronic equipment, the total reflectivity of the glass cover plate is 1%-2%, and / or the specular reflectivity of the glass cover plate is 0.1%-0.35%; the glass cover plate comprises anti-dazzle glass and an antireflection film, and the antireflection film is arranged on the anti-dazzle glass. According to the glass cover plate, the display screen and the electronic equipment provided by the embodiment of the invention, the specular reflectance can be further reduced, so that the anti-glare effect of the glass cover plate can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more particularly to a glass cover, a display screen, and an electronic device. Background Technology

[0002] When an external light source shines on the display screen of an electronic device, the light undergoes specular reflection on the screen, producing strong reflected light, also known as glare. Glare can interfere with the user's vision, making it difficult for them to see the screen clearly and affecting the visual health of the electronic device.

[0003] In related technologies, displays typically have an outermost layer of anti-glare glass (AG glass) to reduce glare. However, the anti-glare effect of AG glass in these technologies is limited. When external light sources shine on the screen of electronic devices, specular reflection still occurs, producing strong reflected light that interferes with the user's vision, making it difficult for them to see the screen clearly and affecting their visual experience. Utility Model Content

[0004] This application discloses a glass cover, a display screen, and an electronic device, which can further reduce total reflectivity and specular reflectivity, thereby improving the anti-glare effect of the glass cover.

[0005] To achieve the above objectives, in a first aspect, this application discloses a glass cover plate, wherein the total reflectivity of the glass cover plate is 1%-2%, and / or, the specular reflectivity of the glass cover plate is 0.1%-0.35%.

[0006] The glass cover plate includes:

[0007] Anti-glare glass; and,

[0008] An anti-reflective film is disposed on the anti-glare glass.

[0009] As an optional implementation, in an embodiment of the first aspect of this application, the ratio of the average reflectivity of the antireflective film to the reflectivity of the antiglare glass is 1 / 4 to 1 / 2.

[0010] As an optional implementation, in an embodiment of the first aspect of this application, the anti-glare glass includes a first surface and a plurality of microstructures, the first surface being configured as the surface of the anti-glare glass in its thickness direction and disposed toward the anti-reflective film, the plurality of microstructures being disposed on the first surface, the plurality of microstructures including recesses and / or protrusions.

[0011] As an optional implementation, in an embodiment of the first aspect of this application, the distance between the center points of two adjacent microstructures is configured as D, and σD is configured as the standard deviation of D, wherein 0 < σD ≤ 5 μm.

[0012] As an optional implementation, in an embodiment of the first aspect of this application, Dave is configured as the average value of D, wherein 10 μm ≤ Dave ≤ 60 μm.

[0013] As an optional implementation, in the embodiment of the first aspect of this application, two adjacent microstructures are connected by a connecting surface;

[0014] A plane parallel to the thickness direction of the anti-glare glass and passing through the center points of two adjacent microstructures is configured as a first plane. A direction within the first plane and perpendicular to the thickness direction of the anti-glare glass is configured as a first direction. The cross-sectional profile of the connecting surface intercepted by the first plane is configured as a first section line.

[0015] For two adjacent microstructures whose center point is located in the first plane, the maximum size of one microstructure in the first direction is configured as W1, the maximum size of the other microstructure in the first direction is configured as W2, and the length of the first slit in the first direction is configured as L1.

[0016] The area of ​​the first surface is configured as S1, and the sum of the projected areas of the connecting surfaces on the first surface is configured as S2.

[0017] Wherein, the curvature of the first intercept is less than 0.01 μm -1 When 2L1 / (W1+L1+W2)>5%, S2 / S1≤10%.

[0018] As an optional implementation, in an embodiment of the first aspect of this application, the microstructure includes a third surface and a fourth surface, the fourth surface surrounding and connected to the periphery of the third surface;

[0019] A plane parallel to the thickness direction of the anti-glare glass and passing through the center points of two adjacent microstructures is configured as a first plane. A direction within the first plane and perpendicular to the thickness direction of the anti-glare glass is configured as a first direction. The cross-sectional profile of the third surface intercepted by the first plane is configured as a second cross-section.

[0020] For two adjacent microstructures whose center points are located in the first plane, the maximum size of one microstructure in the first direction is configured as W1, the maximum size of the other microstructure in the first direction is configured as W2, the distance between the two adjacent microstructures in the first direction is configured as M, the length of the second segment of one microstructure in the first direction is configured as L2, and the length of the second segment of the other microstructure in the first direction is configured as L3.

[0021] The area of ​​the first surface is configured as S1, and the sum of the projected areas of the third surface on the first surface is configured as S3.

[0022] Wherein, the curvature of the second section is less than 0.01 μm. -1 When L2 / (W1+M / 2)>5% and L3 / (W2+M / 2)>5%, S3 / S1≤10%.

[0023] As an optional implementation, in an embodiment of the first aspect of this application, two adjacent microstructures are connected by a connecting surface, the sum of the projected areas of the connecting surfaces on the first surface is configured as S2, the cross-sectional outline of the connecting surface intercepted by the first plane is configured as a first section line, and the length of the first section line in the first direction is configured as L1.

[0024] Wherein, the curvature of the first intercept is less than 0.01 μm -1 When 2L1 / (W1+L1+W2)>5%, (S2+S3) / S1≤10%.

[0025] Secondly, this application discloses a display screen having a glass cover as described in the first aspect above.

[0026] Thirdly, this application discloses an electronic device having the display screen described in the third aspect above.

[0027] Compared with the prior art, the beneficial effects of this application are as follows:

[0028] The glass cover, display screen, and electronic device provided in this application embodiment can further reduce specular reflectivity by adding an anti-glare film to the anti-glare glass, thereby improving the anti-glare effect of the glass cover. Moreover, the addition of the anti-glare film can also effectively improve the contrast of the bright room, increase the screen brightness, and improve the image clarity and visual comfort, so that viewers can comfortably view the content of the display screen.

[0029] At the same time, the total reflectivity of the glass cover is controlled within the range of 1%-2%, and / or the specular reflectivity of the glass cover is controlled within the range of 0.1%-0.35%. This allows for easier processing to form anti-reflective films and anti-glare glass, thereby reducing costs, while also lowering the reflectivity of the glass cover. This results in better image clarity and visual comfort, allowing viewers to comfortably view the content on the display screen. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the electronic device disclosed in the embodiments of this application;

[0032] Figure 2 This is an exploded structural diagram of the electronic device disclosed in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the first structure of the display screen disclosed in the embodiments of this application;

[0034] Figure 4 This is a schematic diagram of a second structure of the display screen disclosed in the embodiments of this application;

[0035] Figure 5 This is a schematic diagram of the first structure of the antireflective film disclosed in the embodiments of this application;

[0036] Figure 6 This is a schematic diagram of the second structure of the antireflective film disclosed in the embodiments of this application;

[0037] Figure 7 This is a schematic diagram of the third structure of the antireflective film disclosed in the embodiments of this application;

[0038] Figure 8 This is a schematic diagram of the first structure of the anti-glare glass disclosed in the embodiments of this application;

[0039] Figure 9 This is a schematic diagram of the second structure of the anti-glare glass disclosed in the embodiments of this application;

[0040] Figure 10 This is a first cross-sectional view of the microstructure disclosed in the embodiments of this application, obtained by the first plane;

[0041] Figure 11This is a second cross-sectional view of the microstructure disclosed in the embodiments of this application, obtained by the first plane;

[0042] Figure 12 This is a photograph of the cross-section of the microstructure disclosed in the embodiments of this application, as cut by the first plane;

[0043] Figure 13 Yes Figure 12 A schematic diagram showing the fitting of the morphology curve using a power function curve;

[0044] Figure 14 This is a first comparison diagram of the morphology curves and power function curves of the microstructures disclosed in the embodiments of this application;

[0045] Figure 15 This is a second comparison diagram of the morphology curves and power function curves of the microstructures disclosed in the embodiments of this application;

[0046] Figure 16 These are real photographs of the microstructures disclosed in the embodiments of this application;

[0047] Figure 17 This is a first cross-sectional view of two adjacent microstructures as disclosed in the embodiments of this application, obtained by a first plane;

[0048] Figure 18 This is a second cross-sectional view of two adjacent microstructures as disclosed in the embodiments of this application, obtained by the first plane.

[0049] Explanation of main figure symbols

[0050] 1000 - Electronic devices;

[0051] 100 - Display screen; 100a - Glass cover; 10 - Anti-glare glass; 10a - First surface; 10b - Second surface; 11 - Microstructure; 11a - Third surface; 11b - Fourth surface; 111 - Recess; 112 - Protrusion; 113 - Shape curve; 114 - Edge; 115 - Connecting surface; 116 - Non-planar; 20 - Anti-reflective coating; 21 - Film layer; 23 - Glass substrate; 24 - Nanostructure; 30 - Display module;

[0052] 200 - Equipment housing; 201 - Frame; 202 - Rear cover. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the exemplary embodiments of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments. That is, the specific embodiments described herein are merely used to explain this application and are not intended to limit this application.

[0054] It should be noted that the brief descriptions of terminology used in this application are merely for the purpose of facilitating understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0055] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] The terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first surface may be referred to as a second surface, and similarly, a second surface may be referred to as a first surface. Both the first surface and the second surface are surfaces, but they are not the same surface.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0058] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] In the description of this 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 terms such as "comprising / including" or "having" specify the presence of the stated features, integrals, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integrals, steps, operations, components, parts, or combinations thereof.

[0060] In addition, the term "and / or" as used in this specification includes any and all combinations of the related listed items. For example, A and / or B can mean: A alone, A and B together, or B alone. That is, the term "and / or" as used in this specification includes any and all combinations of the related listed items.

[0061] To prevent strong light reflections from external light sources from interfering with the screen of electronic devices and affecting the user's visual perception, electronic devices on the market generally have anti-glare (AG) glass on the screen to reduce the intensity of external reflected light, thereby solving the problem of reflections and glare on the display screen under ambient light.

[0062] Although anti-glare glass provides a certain degree of anti-glare effect to the screen, its reflectivity is still relatively high. For example, the light transmittance can only reach a maximum of 92%, with about 8% of the light being reflected, affecting actual use. For instance, it may prevent users from seeing the screen clearly, thus impacting the user's visual experience.

[0063] In view of this, embodiments of this application provide a glass cover that can further reduce total reflectivity and specular reflectivity to improve anti-glare effect.

[0064] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0065] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the electronic device in one implementation of this application. This application provides an electronic device 1000, which may also be referred to as a mobile terminal (MT), terminal, user equipment (UE), mobile station (MS), etc.

[0066] In this application, the specific product form of the electronic device can be a smartphone, tablet computer, learning machine, laptop computer, desktop computer, PDA (Personal Digital Assistant), laptop computer, Ultramobile Personal Computer (UMPC), television, wearable smart devices (such as smartwatches, smart wristbands, earphones, etc.), in-vehicle equipment, home appliances (such as electric toothbrushes, flashlights, etc.), gaming devices (such as game controllers, game joysticks, game mice, etc.), multimedia players, e-book readers, or other electronic products with a display screen. In this case, the anti-glare glass, mentioned later, is placed on the display module of the screen to reduce specular reflection of ambient light on the screen and prevent scattering, thus solving the problem of reflection and glare on the screen under ambient light, thereby making the display effect clearer.

[0067] It is understood that the electronic device in this application can be an electronic product with a display screen, or an electronic product without a display screen, such as an automobile. In this case, the anti-glare glass mentioned later can be the windshield of the automobile, so that the driver's field of vision through the windshield will not be glared, reducing the formation of stray light and thus playing an anti-glare role, ensuring driving safety and reducing the incidence of traffic accidents. The embodiments of this application do not specifically limit the form of the electronic device.

[0068] For ease of understanding and description, the structure of the electronic device 1000 provided in this application embodiment will be described below using a tablet computer as an example.

[0069] Please see Figure 2 , Figure 2 yes Figure 1The diagram shows an exploded view of the electronic device. The electronic device 1000 provided in this application embodiment includes a display screen 100 and a device housing 200. The display screen 100 is mounted on the device housing 200, and the display side of the display screen 100 is disposed away from the device housing 200. The display screen 100 is used to implement the screen display function of the electronic device 1000 of this application. The device housing 200 provides support, fixation, and protection for the display screen 100, enabling the display screen 100 fixed on the device housing 200 to normally perform its screen display function. Furthermore, the device housing 200 can be used to install various electronic components required by the electronic device 1000, such as cameras (specifically, front-facing cameras and / or rear-facing cameras), motherboards, batteries, receivers, microphones, etc.

[0070] Meanwhile, the housing 200 can also fix and protect the display screen 100 and other electronic components or structures inside the housing 200 under external forces, such as drops, bumps, and collisions. It can also create a sealing effect on the display screen 100 and other electronic components or structures inside the housing 200 to prevent external moisture, dust, and other impurities from corroding the electronic components or structures inside the housing 200.

[0071] For example, the device housing 200 may include a frame 201 and a back cover 202. The back cover 202 is fixed to the frame 201. The back cover 202 can be fixed to the frame 201 by adhesive, or it can be an integral structure with the frame 201, that is, the back cover 202 and the frame 201 are a single structure. The display screen 100 is located on the side of the frame 201 away from the back cover 202. In this case, the display screen 100 and the back cover 202 are located on opposite sides of the frame 201, and the display screen 100, the frame 201, and the back cover 202 together enclose the interior of the electronic device 1000.

[0072] Optionally, the display screen 100 can be a rigid display screen (flat screen) or a flexible display screen (curved screen). For example, the display screen 100 can be an organic light-emitting diode (OLED) display panel, an active-matrix organic light-emitting diode (AMOLED) display panel, a mini organic light-emitting diode (MLED) display panel, a micro light-emitting diode (LED) display panel, a micro organic light-emitting diode (MOLED) display panel, a quantum dot light-emitting diode (QLED) display panel, or a liquid crystal display panel (LCD).

[0073] It should be noted that, Figure 2 The accompanying drawings below only schematically illustrate some components included in the electronic device 1000; the actual shape, size, location, and construction of these components are not subject to change. Figure 2 As defined in the accompanying drawings below, the structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device 1000. In other embodiments of this application, the electronic device 1000 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements.

[0074] Please see Figure 3 , Figure 3 yes Figure 2 The diagram shows a structural schematic of the display screen 100 in some embodiments. The display screen 100 provided in this application includes an anti-glare glass (AG glass) 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. In this way, the anti-glare properties of the anti-glare glass 10 can be used to reduce the specular reflection of ambient light on the display screen 100, thus reducing scattering and solving the problem of reflection and glare of the display screen 100 under ambient light sources. This makes the display effect of the display screen 100 clearer.

[0075] Please see Figure 4 , Figure 4 yes Figure 2 The diagram shows a structural schematic of the display screen 100 in some other embodiments. The display screen provided in this 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.

[0076] The glass cover 100a includes anti-glare glass (AG glass) 10, which is disposed on the display side of the display module 30, for example, covering the display side of the display module 30. In this way, the anti-glare properties 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, thus solving the problem of reflection and glare of the display screen 100 under ambient light source, thereby making the display effect of the display screen 100 clearer.

[0077] Furthermore, the glass cover 100a also includes an anti-reflection film (AR film) 20, which 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, the anti-glare glass 10 is disposed between the anti-reflection film 20 and the display module 30.

[0078] Adding an anti-reflective film 20 to the anti-glare glass 10 can further reduce the specular reflectivity, thereby improving the anti-glare effect of the glass cover 100a. Moreover, the addition of the anti-reflective film 20 can effectively improve the contrast of the bright room, increase the brightness of the display screen 100, and improve the clarity and visual comfort of the image, so that viewers can comfortably view the content of the display screen 100.

[0079] Bright room contrast ratio refers to the contrast performance of a display screen in a bright room environment. That is, the ratio of the brightness of the brightest area to the darkest area of ​​the screen in a strong light environment (such as direct sunlight or high-brightness indoor lighting).

[0080] In some embodiments, the total reflectivity of the glass cover is 1%-2%, for example 1.5%-2%. Exemplary values ​​include 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, or 2%, etc.

[0081] When the above relationship is satisfied, it is possible to facilitate the processing and formation of the anti-reflective film 20 and the anti-glare glass 10, thereby reducing costs, while also making the total reflectivity of the glass cover 100a lower, which can better improve image clarity and visual comfort, so that viewers can comfortably view the content of the display screen 100.

[0082] When the total reflectivity of the glass cover 100a is less than 1%, such as when the total reflectivity of the glass cover 100a is 0.5%, 0.7%, 0.8%, etc., it will increase the difficulty of manufacturing the anti-reflective film 20 and the anti-glare glass 10, resulting in a higher price for the glass cover 100a and thus increasing the cost. When the total reflectivity of the glass cover 100a is greater than 2%, the content displayed on the screen will be unclear, affecting the viewing experience.

[0083] In some embodiments, the specular reflectivity of the glass cover is 0.1%-0.35%, for example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, or 0.35%, etc.

[0084] When the above relationship is satisfied, it is possible to facilitate the processing and formation of the anti-reflective film 20 and the anti-glare glass 10, thereby reducing costs, while also making the specular reflectivity of the glass cover 100a lower, which can better improve image clarity and visual comfort, so that viewers can comfortably view the content of the display screen 100.

[0085] Wherein, reflectivity R = (n1-n2) / (n1+n2), n1 and n2 are the refractive indices of light entering medium 2 from medium 1, that is, n1 is the refractive index of the initial medium in which the incident light is located. For example, if light enters the antireflective film from air, then n1 corresponds to the refractive index of air, and n2 is the refractive index of the second medium into which the light enters. In the example above, n2 corresponds to the refractive index of the antireflective film.

[0086] This application tested the performance of a glass cover plate 100a with or without an anti-reflective film 20 on the anti-glare glass 10. The specific test results are shown in Table 1 below:

[0087] Clarity Reflection DOI Flash point Total reflectance Specular reflectance No anti-reflective coating was applied to the anti-glare glass. 40％ 23％ 2.8％ 5.5％ 0.5％ An anti-reflective film is installed on the anti-glare glass. 40％ 10％ 2.8％ 1.7％ 0.15％

[0088] Table 1

[0089] In Table 1 above and Tables 2-7 mentioned below, sharpness is characterized by contrast ratio, which refers to the difference in brightness between the brightest white and the darkest black in an image. The brightness hierarchy from the darkest black to the brightest white in an image is usually represented by grayscale. Therefore, the sharpness (contrast ratio) in the table is calculated as: (Grayscale value of high-grayscale pixel - Grayscale value of low-grayscale pixel) / (Grayscale value of high-grayscale pixel + Grayscale value of low-grayscale pixel). The grayscale value range for low-grayscale pixels is 0–85 (8-bit grayscale image), and the grayscale value range for high-grayscale pixels is 170–255 (8-bit grayscale image). Furthermore, a higher contrast ratio indicates a more pronounced difference between light and dark areas in the image, better revealing details, and thus a sharper display with a better visual effect.

[0090] "DOI" or Distinctness-Of-Reflected-Image gloss refers to the sharpness of the image reflected from a surface. It's an aspect of gloss characterized by the sharpness of the image produced. It's also commonly referred to as Distinctness-Of-Image or DOI, which encompasses image sharpness and outline brightness. Therefore, "DOI" is also known as "distinctness." A lower DOI value means less glare or reflection interference from ambient light, resulting in clearer display in bright environments and better anti-glare performance.

[0091] It's important to note that when using AG glass, tiny, bright dots may appear on the screen surface. These dots may randomly shift in position as the observer moves; this phenomenon is called flashpoint. Flashpoint is typically measured by taking a picture of the fixed screen, calculating the standard deviation of the brightness of the originally uniformly displayed area, and then using this standard deviation and the average screen brightness to characterize the flashpoint. Therefore, flashpoint = standard deviation of brightness of the originally uniformly displayed area / average screen brightness. Furthermore, a lower flashpoint value means fewer flashes on the display, resulting in better display quality and a better user experience.

[0092] Total reflectance is the sum of specular reflectance and diffuse reflectance.

[0093] As shown in Table 1 above, covering the anti-glare glass with an anti-reflective film reduces the reflective DOI, total reflectivity, and specular reflectivity compared to the solution without an anti-glare film. Specifically, the reflective DOI decreases from 23% to 10%, the total reflectivity decreases from 5.5% to 1.7%, and the specular reflectivity decreases from 0.5% to 0.15%. Therefore, by adding an anti-reflective film 20 to the anti-glare glass 10, not only can the total reflectivity and specular reflectivity be further reduced, improving the anti-glare effect of the glass cover 100a, but it can also effectively reduce flicker points, improve image clarity and visual comfort, allowing viewers to comfortably view the content of the display screen 100.

[0094] In some embodiments, the ratio of the average reflectivity of the antireflective film 20 to the reflectivity of the antiglare glass 10 is 1 / 4 to 1 / 2, for example, 1 / 4, 5 / 16, 3 / 8, 7 / 16, or 1 / 2, etc.

[0095] When the ratio of the average reflectivity of the anti-reflective 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-reflective film 20, potentially causing ghosting, light spots, or "ghosting" (especially in strong light environments), reducing image clarity. Furthermore, the overall light transmittance of the glass cover may be lower than expected, resulting in insufficient screen brightness, particularly affecting visibility in outdoor scenarios. Conversely, when the ratio of the average reflectivity of the anti-reflective 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, weakening its diffuse reflection capability and failing to effectively disperse incident light. This results in noticeable glare even under direct strong light (such as sunlight), reducing screen visibility. Moreover, it increases the manufacturing difficulty of the anti-glare glass 10, leading to increased costs.

[0096] Therefore, when the above relationship is satisfied, it is possible to facilitate the processing and formation of the anti-reflective film 20 and the anti-glare glass 10, thereby reducing costs, while also improving the image clarity and the overall light transmittance of the glass cover, so that viewers can comfortably view the content of the display screen 100.

[0097] As one example, Figure 5 yes Figure 4 The diagram shows a structural schematic of the antireflective coating 20 in some embodiments. The antireflective coating 20 can be an interference-cancelling antireflective coating. For example, it can be deposited on the surface of the anti-glare glass 10 using sputtering methods (e.g., magnetron sputtering, DC sputtering, RF sputtering, reactive sputtering, etc.) or chemical plating (e.g., chemical vapor deposition, CVD). These layers of different refractive indices constitute the antireflective coating 20, causing the incident light to interfere and cancel each other out on the front and back surfaces of the coating, thereby achieving the antireflective effect of interference cancellation, effectively reducing reflected light, and enabling the glass cover 100a to have a better anti-glare effect.

[0098] Specifically, the anti-reflective coating 20 may include a portion along the thickness direction of the anti-glare glass 10 (e.g., Figure 4 , Figure 5 The multilayer film 21 (stacked in the vertical direction) is located in the direction from the antireflective film 20 to the antiglare glass 10, for example in... Figure 4 , Figure 5 In the downward direction, the refractive index of each film layer 21 gradually changes.

[0099] As another embodiment, light reflection occurs when there is a difference in refractive index at the interface of the medium through which light passes. A portion of the light changes its original direction of incidence and returns to the original medium. When the refractive index changes abruptly, a small portion of the incident light is consumed by reflection, thus reducing the amount of reflected light.

[0100] Therefore, an exemplary case, such as Figure 6 As shown, Figure 6 yes Figure 4 The schematic diagram of the antireflective coating 20 in some other embodiments shown illustrates that a graded refractive index film layer can be fabricated as the antireflective coating 20. For example, the graded refractive index film layer can be fabricated by color inkjet printing or by tilting sputtering to reduce specular reflectivity and improve anti-glare effect. Here, the graded refractive index film layer refers to a film layer whose refractive index gradually changes along the film thickness direction to eliminate abrupt interfaces between film layers, but remains constant in the horizontal direction.

[0101] Specifically, the antireflective film 20 is a film layer whose refractive index gradually changes in the direction from the antireflective film 20 to the anti-glare glass 10.

[0102] Another example, such as Figure 7 As shown, Figure 7 yes Figure 4 The diagram shows a structural schematic of the antireflective coating 20 in some embodiments. The antireflective coating 20 includes a glass substrate 23 and a nanostructure 24. The glass substrate 23 is disposed on the anti-glare glass 10, and the nanostructure 24 is formed on the surface of the glass substrate 23 facing away from the anti-glare glass 10. In this case, the antireflective coating 20 can be called a moth-eye antireflective coating, and the nanostructure 24 can be a subwavelength structure. The subwavelength structure refers to a structure similar to a moth's eye. According to the effective medium theory (EMT), its refractive index is equivalent to that of a multilayer thin film with a gradually changing refractive index. This can achieve a gradual change in refractive index from the air surface to the glass substrate, reducing the difference in refractive index. This not only effectively reduces reflectivity but also solves the process problems between depositing multilayer antireflective coatings and the limitations on the selection of antireflective coating materials.

[0103] Please see Figure 8 , Figure 8 yes Figure 3 , Figure 4 The diagram shows a structural schematic of the anti-glare glass 10 in some embodiments. The anti-glare glass 10 provided in this application embodiment includes a first surface 10a and a second surface 10b, wherein the first surface 10a is the anti-glare glass 10 in its thickness direction (e.g., Figure 8 The second surface 10b and the first surface 10a are arranged opposite to each other in the thickness direction of the anti-glare glass 10. The second surface 10b is used to be close to the display module 30, that is, the second surface 10b is connected to the display module 30.

[0104] In some embodiments, the anti-glare glass 10 provided in this application further includes a plurality of microstructures 11, which are disposed on the first surface 10a. Each microstructure 11 includes a recess 111 and / or a protrusion 112; that is, all microstructures 11 can be recesses 111 (e.g., ...). Figure 8 As shown), they can all be protrusions 112 (as shown). Figure 9 As shown), some microstructures 11 can be concave 111 and other microstructures 11 can be convex 112.

[0105] Since the recessed portion 111 and the convex portion 112 can scatter light from the external environment onto the display screen in all directions, diffuse reflection is formed on the surface of the anti-glare glass 10, reducing the intensity of reflected light and thus achieving the anti-glare effect.

[0106] In this application, for ease of description, the direction parallel to the thickness of the anti-glare glass 10 (e.g.) Figure 10 The plane passing through the center points of at least two microstructures 11 (in the vertical direction) is defined as the first plane, and the direction within the first plane and perpendicular to the thickness direction of the anti-glare glass 10 is defined as the first direction, for example... Figure 10 The left and right directions within. The center point of microstructure 11 is typically the lowest point of the concave portion or the highest point of the convex portion.

[0107] In some embodiments, such as Figures 8 to 10 As shown, the cross-sectional profile of the microstructure 11 intercepted by the first plane includes a morphology curve 113. The morphology curve 113 satisfies the following condition: the morphology curve is fitted by an objective function, which includes power functions. The average exponent of each power function is in the range of 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.

[0108] This application uses power function curve fitting to fit the morphology curve of each microstructure 11 and controls the average exponent range of each power function within the range of 1.5-3 to constrain the morphology curve characteristics of the microstructure 11, so that the anti-glare glass 10 can simultaneously take into account the characteristics of good anti-glare effect, good clarity and low flash point, thereby obtaining an anti-glare glass 10 with good anti-glare effect, good clarity and low flash point.

[0109] Furthermore, by using an exponential curve to fit the morphology curve 113 of the microstructure 11, this application can essentially match the entire trend of the morphology curve 113 of the microstructure 11, thereby facilitating the characterization of the morphology curve 113 of the microstructure 11. This makes it easier to obtain all the morphological features of the microstructure 11, which in turn is beneficial for preparing anti-glare glass 10 with good anti-glare effect, good clarity and low flash point. Alternatively, it can analyze the influence of the microstructure 11 on clarity and flash point to obtain anti-glare glass 10 with good anti-glare effect, good clarity and low flash point.

[0110] In some embodiments, the objective function may consist only of power functions. In other embodiments, the objective function includes not only power functions but also trigonometric functions; that is, in other embodiments, the objective function is a piecewise function, which consists of at least power functions and trigonometric functions.

[0111] As one example, such as Figure 10 As shown, a rectangular coordinate system is established in a plane with the position where the curvature of the topography curve 113 is zero as the origin, the first direction as the x-axis, and the thickness direction of the anti-glare glass as the z-axis.

[0112] As another embodiment, such as Figure 11 As shown, the cross-sectional contour of the microstructure 11 intercepted by the first plane includes two morphological curves 113 symmetrically arranged about the thickness direction of the anti-glare glass. In the first plane, a rectangular coordinate system is established with the symmetrical point of the two morphological curves 113 as the origin, the first direction as the x-axis, and the thickness direction of the anti-glare glass as the z-axis.

[0113] In this application, the morphology curve 113 of the microstructure 11 satisfies the following power function formula:

[0114] z = zmax * (x / xmax)^γ;

[0115] in, Figure 10 and Figure 11 The coordinates of point M in the figure are (xmax, zmax), where xmax is the maximum position of non-zero curvature of topography curve 113 on the x-axis, and zmax is the highest position of non-zero curvature of topography curve 113 on the z-axis. γ (gamma) is the exponent. x is the abscissa of any point on topography curve 113 on the x-axis, and z is the ordinate of any point on topography curve 113 on the z-axis. Therefore, the coordinates of any point on topography curve 113 are (x, z).

[0116] As can be seen from the above function formula, the γ value is actually an exponential value related to curve fitting. By using power function curve fitting, the morphology curve 113 of microstructure 11 is characterized. Since this method can characterize the morphology curve 113 of microstructure 11 with a single parameter (i.e., the γ value), it can reduce the variables during fitting and increase the degree of fit, and has high simplicity and fitting accuracy.

[0117] like Figure 12 and Figure 13 As shown, Figure 12 and Figure 13 All images are actual photographs of the microstructure. Figure 12 and Figure 13 The fitted region highlighted in red indicates the location of the microstructure morphology curve. Figure 13 The x-axis is the horizontal axis, with units in micrometers (μm), and the y-axis is the vertical axis, with units in micrometers (μm). Figure 13 The coordinates of point M in the equation are (xmax, zmax). Figure 13 The blue curve in the image represents the power function curve for γ = 2.1. Figure 13 As can be seen, when γ is adjusted to 2.1, the power function curve and the morphology curve of the microstructure can basically match.

[0118] In order to characterize the changes in γ values ​​corresponding to each microstructure 11 on the entire anti-glare glass 10 as much as possible, and to characterize the characteristics of each microstructure 11, as well as its corresponding flash point, clarity, and anti-glare effect by the changes in γ values, it is necessary to take at least 50 sets of fitting data on the entire anti-glare glass 10. That is, it is necessary to take at least 50 γ values ​​corresponding to each microstructure 11 on the entire anti-glare glass 10 to calculate the average value γave and the standard deviation σγ of γ.

[0119] Among them, γave=(γ1+γ2+γ3+...+γn) / n.

[0120] σγ=(1 / n-1)*((γ1-γave)^2+(γ2-γave)^2+(γ3-γave)^2+...+(γn-γave)^2)^0.5.

[0121] Based on the above calculations, the average value γave and the standard deviation σγ of γ are limited so that the morphology 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 degrees of concave and convex shapes 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 low flash point.

[0122] In this application, the shape and degree of concavity of the power function curve can be adjusted by adjusting the value of γ, thereby adjusting the shape and degree of concavity of the morphology curve 113 of the microstructure 11, so as to control the influence of each microstructure 11 on the flash point, clarity and anti-glare effect.

[0123] For example, such as Figure 14 As shown, Figure 14 The x-axis is the horizontal axis, with units in micrometers (μm), and the y-axis is the vertical axis, with units in micrometers (μm). Figure 14 In the image, the original morphology curve of the microstructure, that is, the actual morphology curve of the microstructure (i.e., the blue curve), is distributed at five points, namely A, B, C, D, and E. The curvature of each point is different, and from... Figure 14 It can be seen that the radii of curvature at points A, B, C, D, and E gradually decrease from left to right. The radii of curvature at all five points are within the preset range of x1 - x2 (x1 > x2), for example, x1 = 2 μm. -1 -8μm -1 x2 = 23 μm -1 -30μm -1 For example, x1 = 2μm -1 3μm -1 4μm -1 5μm -1 6μm -1 7μm -1 Or 8μm -1 Wait, 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 morphology curve of the microstructure is within the range of x1-x2, it is possible to facilitate the fabrication and formation of the microstructure while meeting the anti-glare requirements, improving clarity, and reducing flash point.

[0124] like Figure 14 As shown, when using a power function curve with γ = 2.5 for fitting, it can basically completely match the changes in the entire morphology curve and all morphological features.

[0125] like Figure 15 As shown, Figure 15The x-axis is the horizontal axis, with units in micrometers (μm), and the z-axis is the vertical axis, also with units in micrometers (μm). When γ is adjusted to 2.2, almost all points of the original morphology curve 113 can be matched. Therefore, it can be seen that using power function curve fitting to characterize the specific morphology of the microstructure can completely describe the morphology curve characteristics of the microstructure 11 and effectively obtain the morphological features of the microstructure.

[0126] 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.

[0127] When the above relationship is satisfied, the concavity and convexity of the morphology curve 113 of the microstructure 11 can be constrained within a suitable range, so that the radius of curvature of the morphology curve 113 of a large number of microstructures 11 can be within the range of x1-x2. Thus, while the microstructure 11 is easy to process and form, the contradiction between anti-glare effect, flash point and clarity can be effectively balanced, and anti-glare glass 10 with good anti-glare effect and display effect can be prepared.

[0128] Preferably, 1.8 ≤ γave ≤ 2.2. By controlling the average value γave within the range of 1.8-2.2, the concavity and convexity of the morphology curve 113 of the microstructure 11 can be constrained within a more suitable range. This allows the radius of curvature of the morphology curve 113 of most microstructures 11 to be within the range of x1-x2. Thus, while facilitating the processing and formation of the microstructure 11, the contradiction between anti-glare effect, flash point, and clarity can be more effectively balanced, thereby enabling the preparation of anti-glare glass 10 with better anti-glare effect and display effect.

[0129] This application tested the performance of anti-glare glass with different values ​​of γave. Understandably, in order to illustrate the effect of γave on the performance of anti-glare glass 10, it is usually necessary to control variables such as sharpness, σD, Dave, S2, and S3 (mentioned later) during testing.

[0130] As an example, this application tested the performance of anti-glare glass 10 with a resolution of 35%, σD = 0.14, Dave = 25, (S2+S3) / S1 = 1%, and γave having different values. The specific test results are shown in Table 2 below.

[0131]

[0132]

[0133] Table 2

[0134] Another example is that this application tested the performance of anti-glare glass 10 with a resolution of 50%, σD = 0.14, Dave = 25, (S2+S3) / S1 = 1%, and γave for different values. The specific test results are shown in Table 3 below.

[0135] The specific values ​​of γave Clarity Reflection 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％

[0136] Table 3

[0137] As shown in Tables 2 and 3 above, as γave increases, the reflected DOI first decreases and then increases, while the flash point gradually increases.

[0138] As shown in Table 2 above, when γave is less than 1.5, although there are fewer flickering points, the reflected DOI is relatively high, making it difficult for the display to be clear in bright environments. Conversely, when γave is greater than 3.0, not only is the reflected DOI high, making it difficult for the display to be clear in bright environments, but there are also more flickering points, negatively impacting display quality and the user's visual experience. Therefore, this application controls γave within the range of 1.5-3.0, which enables the display to be clearer in bright environments and has better anti-glare effects while reducing flickering points, thus improving display quality and the user's visual experience.

[0139] Comparing Tables 2 and 3, when 1.8 ≤ γave ≤ 2.2, the sharpness can reach 50% while satisfying the conditions that the flash point is below 5% and the reflection DOI is below 35%. Therefore, this application preferably controls it within the range of 1.8-2.2, which can effectively balance the contradiction between anti-glare effect, flash point and sharpness, and thus prepare anti-glare glass 10 with better anti-glare effect and display effect.

[0140] In some embodiments, 0.04 < σγ < 0.15, for example, 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.

[0141] When the above relationship is satisfied, the morphology curves 113 of most microstructures 11 on the anti-glare glass 10 can be approximately the same. For example, the γ value corresponding to the morphology curves 113 of most microstructures 11 can be within the range of 1.5-2.4 as much as possible, so that the concave and convex shapes and degrees of concave and convex shapes of the morphology curves 113 of each microstructure 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 low flash point.

[0142] Preferably, 0.05 < σγ < 0.08. By controlling the average value σγ of γ within the range of 0.05-0.08, the morphology curves 113 of each microstructure 11 on the anti-glare glass 10 can be made to have approximately the same characteristics. For example, the γ value corresponding to the morphology curves 113 of each microstructure 11 can be made to be within the range of 1.5-2.4 as much as possible, so that the concavity and convexity of the morphology curves 113 of each microstructure 11 can be approximately the same. This controls the influence of each microstructure 11 on the flash point, clarity, and anti-glare effect, resulting in an anti-glare glass 10 with better anti-glare effect, better clarity, and fewer flash points.

[0143] The applicant's research found that the proportion of the planar area on the glass surface affects the anti-glare effect of the anti-glare glass. The smaller the proportion of the planar area on the glass surface, the better the anti-glare effect of the anti-glare glass. Therefore, in order to maximize the anti-glare effect and make full use of the light scattering ability of the fixed area, it is necessary to reduce the proportion of the planar area on the glass surface.

[0144] In addition, the applicant's research also found that the planar regions are 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 position where two adjacent microstructures intersect.

[0145] In some embodiments, such as Figure 16 As shown, the intersection of two adjacent microstructures 11 has an edge, or the intersection of two adjacent microstructures 11 has a smooth transition. This avoids the formation of a planar area at the intersection of two adjacent microstructures 11, thus preventing light reflection in the planar area, reducing specular reflectivity, and improving the anti-glare effect of the anti-glare glass.

[0146] In some embodiments, such as Figure 17 As shown, the cross-sectional profile of the microstructure 11 intercepted by the first plane includes the thickness direction of the anti-glare glass (e.g., Figure 17Two symmetrical topographic curves 113 are arranged in the vertical direction. The connection between the two topographic curves 113 is smoothly transitioned, or the connection between the two topographic curves 113 is formed with an edge. This avoids the formation of a planar area at the connection between the two topographic curves 113, that is, avoids the formation of a planar 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 planar area, thereby reducing the specular reflectivity and improving the anti-glare effect of the anti-glare glass 10.

[0147] In this application, two adjacent microstructures 11 are connected by a connecting 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 convex part. The fourth surface 11b surrounds and connects to the periphery of the third surface 11a.

[0148] In some embodiments, the anti-glare glass 10 further includes a non-planar surface 116, which includes a connecting surface 115 connecting two adjacent microstructures 11, and / or, the non-planar surface 116 includes a third surface 11a of the microstructure 11, wherein the non-planar surface 116 can be understood as a curved surface, arc surface, etc.

[0149] The above design involves making the connecting surface 115 between two adjacent microstructures 11, and / or designing the third surface 11a of the microstructure 11 as a non-planar surface 116. This avoids the formation of a planar area at the intersection of two adjacent microstructures 11, and / or avoids the formation of a planar area on the bottom surface of the concave portion or the top surface of the convex portion, so as to avoid light reflection on the planar area, thereby reducing the specular reflectivity and improving the anti-glare effect of the anti-glare glass 10.

[0150] In some embodiments, such as Figure 18 As shown, the first plane passes through the center point of two adjacent microstructures 11, and the direction within the first plane and 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 vertical direction in the middle, the first direction can be understood as Figure 18 The cross-sectional outline of the connecting surface 115 intercepted by the first plane is the first section line, the cross-sectional outline of the third surface 11a intercepted by the first plane is the second section line, and the cross-sectional outline of the fourth surface 11b intercepted by the first plane includes two morphological curves 113 spaced apart, with the second section line connecting the two morphological curves 113.

[0151] For two adjacent microstructures 11 whose center 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 segment in the first direction is L1 (where L1 = M), the dimension of the second segment of one microstructure 11 in the first direction is L2, and the dimension of the second segment of the other microstructure 11 in the first direction is L3.

[0152] Furthermore, the area of ​​the first surface 10a is S1, the sum of the projected areas of the connecting surface 115 on the first surface is S2, and the sum of the projected areas of the third surface 11a on the first surface is S3.

[0153] 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.

[0154] When the above relationship is satisfied, the first segment is relatively short in the first direction. Then the connecting surface 115 can be approximated as an edge rather than a plane to avoid forming a planar area at the intersection of two adjacent microstructures 11, so as to avoid light reflection on the planar area, thereby reducing the specular reflectivity and improving the anti-glare effect of the anti-glare glass.

[0155] 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. Furthermore, 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. For example, 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.

[0156] When the above relationship is satisfied: L2 / (W1+M / 2)≤5% and L3 / (W2+M / 2)≤5%, the second segment is relatively short in the first direction. Then the third surface 11a can be approximated as an edge rather than a plane. This can avoid the formation of a planar area on the bottom surface of the concave part or the top surface of the convex part, so as to avoid the reflection of light on the planar area, thereby reducing the specular reflectivity and improving the anti-glare effect of the anti-glare glass.

[0157] Understandably, when the curvature of the first segment is less than 0.01 μm -1 When 2L1 / (W1+L1+W2)>5%, the first segment can be approximated as a straight line, and the connecting surface 115 can be approximated as a plane.

[0158] 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. For example, 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.

[0159] When the above relationship is satisfied, the area ratio of the connecting surface 115 on the first surface can be reduced, and the area ratio of the planar region on the first surface can be reduced. This helps to reduce the light reflectivity of the anti-glare glass and improve the light scattering ability of the anti-glare glass, thereby effectively improving the anti-glare effect of the anti-glare glass and making the anti-glare glass have a better anti-glare effect so that the viewer can comfortably view the content of the display screen.

[0160] Preferably, S2 / S1 ≤ 1%. This further reduces the area ratio of the connecting surface 115 on the first surface, further reduces the area ratio of the planar region on the first surface, further reduces the light reflectivity of the anti-glare glass, and further improves the light scattering ability of the anti-glare glass, thereby further improving the anti-glare effect of the anti-glare glass and providing a better anti-glare effect so that viewers can comfortably view the content of the display screen.

[0161] This application tested the performance of anti-glare glass with different S2 / S1 values, and the specific test results are shown in Table 4 below:

[0162] The specific values ​​of S2 / S1 Reflection DOI Flash point S2 / S1 = 0.5 15％ 2.8％ S2 / S1=1 18％ 2.6％ S2 / S1 = 5 25％ 2.5％ S2 / S1 = 10 30％ 2.3％ S2 / S1=12 37％ 2.2％ S2 / S1=30 45％ 2.1％

[0163] Table 4

[0164] As shown in Table 4 above, with the increase of the ratio of S2 to S1, the reflected DOI gradually increases, while the flash point gradually decreases. When S2 / S1 ≤ 10%, the reflected DOI can be reduced to less than 35%. Therefore, this application controls the ratio of S2 to S1 to less than or equal to 10%, which is beneficial to reduce the light reflectivity of the anti-glare glass and improve its ability to scatter light, thereby effectively improving the anti-glare effect of the anti-glare glass and enabling viewers to comfortably view the content of the display screen.

[0165] Similarly, the curvature of the second segment is less than 0.01 μm. -1 When L2 / (W1+M / 2)>5% and L3 / (W2+M / 2)>5%, the second intercept can be approximated as a straight line and the third surface 11a can be approximated as a plane.

[0166] 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. For example, 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.

[0167] When the above relationship is satisfied, the area ratio of the third surface 11a on the first surface can be reduced, and the area ratio of the planar region on the first surface can be reduced. This helps to reduce the light reflectivity of the anti-glare glass and improve the light scattering ability of the anti-glare glass, thereby effectively improving the anti-glare effect of the anti-glare glass and making the anti-glare glass have a better anti-glare effect so that the viewer can comfortably view the content of the display screen.

[0168] Preferably, S3 / S1 ≤ 1%. This further reduces the area ratio of the third surface 11a on the first surface, further reduces the area ratio of the planar region on the first surface, further reduces the light reflectivity of the anti-glare glass, and further enhances the light scattering ability of the anti-glare glass, thereby further improving the anti-glare effect of the anti-glare glass and providing a better anti-glare effect so that viewers can comfortably view the content of the display screen.

[0169] 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:

[0170] The specific values ​​of S3 / S1 Reflection 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％

[0171] Table 5

[0172] As shown in Table 5 above, with the increase of the ratio of S3 to S1, the reflected DOI gradually increases, while the flash point gradually decreases. When S3 / S1 ≤ 10%, the reflected DOI can be reduced to less than 35%. Therefore, this application controls the ratio of S3 to S1 to less than or equal to 10%, which is beneficial to reduce the light reflectivity of the anti-glare glass and improve its ability to scatter light, thereby effectively improving the anti-glare effect of the anti-glare glass and enabling viewers to comfortably view the content of the display screen.

[0173] The curvature of the first segment is less than 0.01 μm. -1 When 2L1 / (W1+L1+W2)>5%, and the curvature of the second slit is less than 0.01μm. -1, 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% and so on. For example, (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.

[0174] When the above relationship is satisfied, the area ratio of the planar region on the first surface can be reduced, which helps to reduce the light reflectivity of the anti-glare glass and improve the light scattering ability of the anti-glare glass. This can effectively improve the anti-glare effect of the anti-glare glass, so that the anti-glare glass has a better anti-glare effect and allows the viewer to comfortably view the content of the display screen.

[0175] Preferably, (S2+S3) / S1≤1%. This further reduces the area ratio of the planar region on the first surface, further reduces the light reflectivity of the anti-glare glass, and further enhances the light scattering ability of the anti-glare glass, thereby further improving the anti-glare effect of the anti-glare glass and providing a better anti-glare effect so that viewers can comfortably view the content of the display screen.

[0176] This application tested the performance of anti-glare glass with different values ​​of (S2+S3) / S1, and the specific test results are as follows.

[0177] As shown in Table 6:

[0178]

[0179]

[0180] Table 6

[0181] As shown in Table 6 above, with the increase of (S2+S3) / S1, the reflected DOI gradually increases, while the flash point gradually decreases. When (S2+S3) / S1 ≤ 10%, the reflected DOI can be reduced to less than 35%. Therefore, this application controls (S2+S3) / S1 to less than or equal to 10%, which is beneficial to reduce the light reflectivity of the anti-glare glass and improve its ability to scatter light, thereby effectively improving the anti-glare effect of the anti-glare glass and enabling viewers to comfortably view the content of the display screen.

[0182] The applicant discovered through research that when multiple microstructures 11 are arranged in a certain pattern, such as when multiple microstructures 11 are evenly arranged on the first surface, the anti-glare effect of the anti-glare glass will be severely affected. Moreover, when the anti-glare glass is placed on the display screen, it is easy to interfere with the pixels and form moiré patterns.

[0183] Therefore, the applicant also imposed constraints on the arrangement of the microstructures 11, mainly using the following two parameters: first, the degree of disorder in the arrangement of the microstructures 11, and second, the average spacing of the microstructures 11, that is, the average value of the spacing of the microstructures 11.

[0184] The disorder of the arrangement of microstructure 11 is mainly characterized by the standard deviation of the spacing of microstructure 11.

[0185] In this application, for ease of description, the distance 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.

[0186] Among them, σD=(1 / n-1)*((D1-Dave)^2+(D2-Dave)^2+(D3-Dave)^2+...+(Dn-Dave)^2)^0.5.

[0187] Dave=(D1+D2+D3+……+Dn) / n.

[0188] The distance D between the center points of two adjacent microstructures 11 can be measured individually or tested using image processing methods; the method is not limited.

[0189] The degree of disorder in the arrangement of microstructures 11 can be obtained by statistically analyzing the distances D between the center points of all adjacent microstructures 11 within a certain region (e.g., the number of microstructures 11 is greater than 5000) and recording them as D1, D2, D3...Dn. Then, the standard deviation σD is calculated to obtain the standard deviation of D, thus revealing the degree of disorder in the arrangement of microstructures 11. A larger σD indicates a greater degree of disorder in the arrangement of microstructures 11, resulting in a more chaotic and irregular arrangement of multiple microstructures; conversely, a smaller σD indicates a smaller degree of disorder in the arrangement of microstructures 11, resulting in a more orderly and regular arrangement of multiple microstructures.

[0190] The average value of D, Dave, can be obtained by counting the distance D between the center points of all two adjacent microstructures 11 within a certain area (e.g., the number of microstructures 11 is greater than 5000) and recording them as D1, D2, D3...Dn.

[0191] In some embodiments, 0 < σD ≤ 5 μm, or 0.10 μm < σD ≤ 5 μm, for example, 0 < σD ≤ 0.1 μm, 0.1 μm < σD ≤ 0.2 μm, 0.2 μm < σD ≤ 0.3 μm, 0.4 μm < σD ≤ 0.5 μm, 0.5 μm < σD ≤ 0.7 μm, 0.7 μm < σD ≤ 0.9 μm, 0.9 μm < σD ≤ 1 μm, 1 μm < σD ≤ 1.5 μm, 1.5 μm < σD ≤ 2 μm, 2 μm < σD ≤ 2.5 μm, 2.5 μm < σD ≤ 3 μm, 3 μm < σD ≤ 3.5 μm, 3.5 μm < σD ≤ 4 μm, 4 μm < σD ≤ 4.5 μm, or 4.5 μm < σD ≤ 5 μm, etc. For example, 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.

[0192] When the above relationship is satisfied, multiple microstructures 11 can be irregularly arranged on the first surface 10a to avoid multiple microstructures 11 being arranged in a certain rule, such as avoiding multiple microstructures 11 being uniformly arranged on the first surface. This can reduce or eliminate moiré patterns generated when the anti-glare glass is used with the display module, thereby effectively improving the clarity when the anti-glare glass is used with the display module, enhancing the display effect and the user's visual experience.

[0193] Preferably, 0.5μm≤σD≤1μm. When the above relationship is satisfied, it is possible to avoid the microstructures 11 being too sparsely arranged to ensure the anti-glare effect, while allowing multiple microstructures 11 to be irregularly arranged on the first surface. This reduces or eliminates moiré patterns generated when the anti-glare glass is used with a display module, thereby effectively improving the clarity of the anti-glare glass when used with a display module, enhancing the display effect and the user's visual experience.

[0194] In some embodiments, 10μm≤Dave≤60μm, for example, 10μm≤Dave≤15μm, 15μm≤Dave≤20μm, 20μm≤Dave≤25μm, 25μm≤Dave≤30μm, 30μm≤Dave≤35μm, 35μm≤Dave≤40μm, 40μm≤Dave≤45μm, 45μm≤Dave≤50μm, 50μm≤Dave≤55μm, or 55μm≤Dave≤60μm, 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, 2 8μm, 29μm, 30μm, 32μm, 35μm, 38μm, 40μm, 43μm, 45μm, 47μm, 50μm, 52μm, 54μm, 55μm, 57μm, 58μm, 59μm or 60μm, etc.

[0195] 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 multiple microstructures to be arranged in a certain pattern, thus easily generating moiré patterns. Therefore, this application controls Dave within the range of 10 μm-60 μm, which can reduce the manufacturing difficulty of the anti-glare glass and reduce costs, while avoiding the arrangement of multiple microstructures 11 in a certain pattern, such as avoiding the uniform arrangement of multiple microstructures 11 on the first surface. This can reduce or eliminate the moiré patterns generated when the anti-glare glass is used with a display module, thereby effectively improving the clarity of the anti-glare glass when used with a display module, enhancing the display effect and the user's visual experience.

[0196] Preferably, 15μm≤Dave≤30μm. When the above relationship is satisfied, the manufacturing difficulty of the anti-glare glass can be further reduced, thereby further reducing the cost, while allowing multiple microstructures 11 to be arranged more irregularly on the first surface, further reducing or eliminating moiré patterns generated when the anti-glare glass is used with a display module. This can greatly improve the clarity when the anti-glare glass is used with a display module, and greatly enhance the display effect and the user's visual experience.

[0197] This application tested the performance of anti-glare glass 10 with different values ​​of σD and Dave. The specific test results are shown in Table 7 below:

[0198] The specific values ​​of σD and Dave Reflection DOI Flash point σD=0, Dave=5μm 80％ 2.2％ σD = 5μm, Dave = 5μm 8％ 10％ σD = 5 μm, Dave = 35 μm 13％ 3.6％ σD = 3 μm, Dave = 25 μm 15％ 2.8％ σD = 7 μm, Dave = 25 μm 10％ 5.0％ σD = 3 μm, Dave = 65 μm 16％ 5.8％

[0199] Table 7

[0200] As shown in Table 7, when σD = 0, the reflected DOI is as high as 80%, resulting in poor anti-glare and display effects. When σD > 0, the reflected DOI decreases, but when Dave < 15μm or Dave > 60μm, the flicker point is relatively high, exceeding 5%, leading to more flickering on the display and poorer visual comfort for viewers. When σD < 5μm, the flicker point is still relatively high, approximately 5%, again resulting in more flickering on the display and poorer visual comfort for viewers. Therefore, controlling σD within the range of 0-5μm, and further controlling Dave within the range of 10μm-60μm, can reduce or eliminate moiré patterns generated when anti-glare glass is used with a display module. This improves the clarity of the anti-glare glass while reducing flickering and enhancing viewer visual comfort.

[0201] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.

[0202] Furthermore, the embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the content of this specification should not be construed as a limitation of this application, and the protection scope of this application should be determined by the appended claims.

Claims

1. A glass cover plate characterized by, The total reflectivity of the glass cover is 1%-2%, and / or the specular reflectivity of the glass cover is 0.1%-0.35%. The glass cover includes: Anti-glare glass; and, An anti-reflective film is disposed on the anti-glare glass.

2. The glass cover sheet of claim 1, wherein, The ratio of the average reflectivity of the antireflective film to the reflectivity of the antiglare glass is 1 / 4 to 1 / 2.

3. The glass cover sheet of claim 1, wherein, The anti-glare glass includes a first surface and a plurality of microstructures. The first surface is configured as the surface of the anti-glare glass in its thickness direction and is disposed toward the anti-reflective film. The plurality of microstructures are disposed on the first surface and include recesses and / or protrusions.

4. The glass cover sheet of claim 3, wherein, The distance between the center points of two adjacent microstructures is configured as D, and σD is configured as the standard deviation of D, where 0 < σD ≤ 5 μm.

5. The glass cover sheet of claim 4, wherein, Dave is configured as the average value of D, where 10μm≤Dave≤60μm.

6. The glass cover sheet of claim 3, wherein, Two adjacent microstructures are connected by a connecting surface; A plane parallel to the thickness direction of the anti-glare glass and passing through the center points of two adjacent microstructures is configured as a first plane. A direction within the first plane and perpendicular to the thickness direction of the anti-glare glass is configured as a first direction. The cross-sectional profile of the connecting surface intercepted by the first plane is configured as a first section line. For two adjacent microstructures whose center point is located in the first plane, the maximum size of one microstructure in the first direction is configured as W1, the maximum size of the other microstructure in the first direction is configured as W2, and the length of the first slit in the first direction is configured as L1. The area of ​​the first surface is configured as S1, and the sum of the projected areas of the connecting surfaces on the first surface is configured as S2. wherein the curvature of the first cutline is less than 0.01 μm -1 and 2L1 / (W1+L1+W2) > 5%, S2 / S1 < 10%.

7. The glass cover sheet of claim 3, wherein, The microstructure includes a third surface and a fourth surface, the fourth surface surrounding and connected to the periphery of the third surface; A plane parallel to the thickness direction of the anti-glare glass and passing through the center points of two adjacent microstructures is configured as a first plane. A direction within the first plane and perpendicular to the thickness direction of the anti-glare glass is configured as a first direction. The cross-sectional profile of the third surface intercepted by the first plane is configured as a second cross-section. For two adjacent microstructures whose center points are located in the first plane, the maximum size of one microstructure in the first direction is configured as W1, the maximum size of the other microstructure in the first direction is configured as W2, the distance between the two adjacent microstructures in the first direction is configured as M, the length of the second segment of one microstructure in the first direction is configured as L2, and the length of the second segment of the other microstructure in the first direction is configured as L3. The area of ​​the first surface is configured as S1, and the sum of the projected areas of the third surface on the first surface is configured as S3. wherein the curvature of the second tangent is less than 0.01 μm -1 S3 / S1≤10% when L2 / (W1+M / 2)>5% and L3 / (W2+M / 2)>5%.

8. The glass cover sheet of claim 7, wherein, Two adjacent microstructures are connected by a connecting surface. The sum of the projected areas of the connecting surfaces on the first surface is configured as S2. The cross-sectional outline of the connecting surface intercepted by the first plane is configured as the first section line. The length of the first section line in the first direction is configured as L1. wherein the curvature of the first cutline is less than 0.01 pm -1 and 2L1 / (W1+L1+W2) > 5%, (S2+S3) / S1 < 10%.

9. A display screen, characterized by The display screen has a glass cover as described in any one of claims 1-8.

10. An electronic device, comprising: The electronic device has a display screen as described in claim 9.

Images