Glass cover plate and electronic equipment

Abstract

The utility model provides a glass cover plate and electronic equipment, the glass cover plate is used for being arranged on the surface of a display screen, the glass cover plate comprises a glass substrate, the glass substrate comprises a first surface and a second surface which are opposite to each other, a plurality of granular first microstructures are arranged on the first surface in an array mode, or a plurality of fibrous second microstructures are arranged on the first surface in an interwoven mode; the first microstructures and the second microstructures are bulges or pits; the second surface is used for being close to the display screen; the transverse dimension of the first microstructure is 5 microns to 40 microns; the surface roughness Ra of the first surface is 0.2 [mu] m-0. 4 [mu] m. The special surface design of the glass cover plate enables the glass cover plate to have better anti-dazzle and anti-flash effects, and the definition of the glass cover plate is higher.

Description

Technical Field

[0001] The present application relates to the technical field of glass for display screens, and in particular to glass cover plates and electronic devices. Background Art

[0002] In order to optimize the user experience of consumers, the glass cover plates of electronic device displays are generally treated with anti-glare. In the related art, unevenly distributed pits or protrusions are generally formed on the surface of the glass cover plate to achieve the purpose of anti-glare. Although the screens of commercially available electronic products have a certain degree of anti-glare effect, flash points are generally present and the clarity is poor, which affects the user experience of consumers when there is glare on the screen. Utility Model Content

[0003] In view of this, the embodiments of the present application provide a glass cover plate and an electronic device, wherein the glass cover plate has both excellent anti-glare and anti-flashing effects and has high clarity.

[0004] In a first aspect, an embodiment of the present application provides a glass cover plate for being arranged on a surface of a display screen, comprising a glass substrate, wherein the glass substrate comprises a first surface and a second surface opposite to each other, wherein a plurality of first granular microstructures are arranged in an array on the first surface, or a plurality of second fibrous microstructures are arranged in an interlaced manner; the first microstructures and the second microstructures are protrusions or pits; and the second surface is used to be arranged close to the display screen;

[0005] The lateral dimension of the first microstructure is 5 μm-40 μm; the surface roughness Ra of the first surface is 0.2 μm-0.4 μm.

[0006] The array-arranged granular first microstructure can effectively reduce the randomness of light refraction in different areas, thereby effectively optimizing the consistency of the degree of refraction of light on the first surface, thereby achieving a better anti-flash effect and higher clarity. In addition, the array-arranged granular first microstructure can also effectively reduce the reflected light generated by the external light source irradiating on the screen, so that the glass cover can have both better anti-glare and anti-flash effects. The staggered fibrous second microstructure can form a surface structure similar to paper, and the second microstructure is also convex or concave relative to the glass substrate, which can also achieve an anti-glare effect. The interlaced fibrous second microstructure seems to be disordered, but compared with the randomly arranged granular concave-convex structure of the glass cover in the related art, the surface of the interlaced second microstructure has a higher uniformity, which is conducive to achieving a better anti-flash effect and achieving higher clarity.

[0007] In some embodiments of the present application, the second surface is a flat surface, which facilitates the assembly of the glass cover plate on the surface of the display screen.

[0008] In some embodiments of the present application, partial boundaries of any two adjacent first microstructures are in contact with each other, which is beneficial to improving the anti-glare effect of the glass cover.

[0009] In some embodiments of the present application, the sum of the orthographic projection areas of the plurality of first microstructures in the thickness direction of the glass substrate accounts for 80%-100% of the orthographic projection area of ​​the glass substrate in the thickness direction thereof. In this way, the anti-glare effect of the glass cover can be optimized.

[0010] In some embodiments of the present application, a plurality of the first microstructures are arranged at intervals, so that while ensuring better anti-glare and anti-flashing effects, the clarity of the glass cover is also improved, and the preparation is also easy.

[0011] In some embodiments of the present application, the distance between any two adjacent first microstructures is 2 μm-30 μm. Suitable distance is conducive to ensuring the anti-glare effect and better clarity of the glass cover plate, and is easy to manufacture.

[0012] In some embodiments of the present application, the distribution density of the first microstructure on the first surface is 6 / 10 4 μm 2 -400 pcs / 10 4 μm 2 The arrangement density of the first microstructure on the first surface is controlled within a suitable range, thereby ensuring a good anti-glare effect and anti-flashing effect as well as a good clarity, and being easy to manufacture.

[0013] In some embodiments of the present application, the lateral size of the first microstructure is 10 μm-30 μm. In this way, a better anti-glare effect and anti-flash effect can be achieved. In addition, when consumers use a smart stylus to write on the first surface, the first surface can form a better wrapping property for the pen tip, thereby maintaining a better writing effect.

[0014] In some embodiments of the present application, the first microstructures have the same morphology and a lateral size difference of ≤10%. In this way, the uniformity of the first surface is better, and the randomness of light refraction due to different regions can be more effectively avoided, thereby ensuring anti-glare and anti-flashing effects.

[0015] In some embodiments of the present application, the first surface includes a plurality of first regions and a plurality of second regions arranged alternately; the first region includes a plurality of first microstructures having the same morphology and a lateral size difference of ≤10%, and the second region includes a plurality of first microstructures having the same morphology and a lateral size difference of ≤10%; or, the first region includes a single first microstructure, and the second region includes a plurality of first microstructures having the same morphology and a lateral size difference of ≤10%;

[0016] The lateral dimension of the first microstructure in the first region is greater than the lateral dimension of the first microstructure in the second region, and / or the morphology of the first microstructure in the first region is different from the morphology of the first microstructure in the second region. When the first region and the second region are alternately arranged on the first surface, the paper-like feel of the first surface can be improved while ensuring a good anti-glare and anti-flash effect, and a more suitable friction force can be provided, thereby improving the writing experience of consumers.

[0017] In some embodiments of the present application, the ratio of the lateral dimension of the first microstructure in the first region to the lateral dimension of the first microstructure in the second region is (2-8): 1. This is more conducive to constructing a glass cover with excellent anti-glare, anti-flashing and good writing experience.

[0018] In some embodiments of the present application, the lateral size of the first microstructure in the first region is 20 μm-40 μm, and the lateral size of the first microstructure in the second region is 5 μm-20 μm. In this way, while ensuring good anti-glare and anti-flash effects, it is more suitable for the existing smart stylus pen tip size.

[0019] In some embodiments of the present application, the sum of the areas of the first regions is 50%-80% of the orthographic projection area of ​​the glass substrate in the thickness direction thereof. In this way, the anti-glare effect and the anti-flash effect can be taken into account while providing consumers with a better writing experience.

[0020] In some embodiments of the present application, the first microstructure is in the shape of a spherical segment, and the curved surface of the first microstructure in the shape of a spherical segment is arranged away from the glass substrate, and the height of the first microstructure is less than or equal to its radius. In this way, the glass cover plate is easy to prepare and the uniformity of the first surface is easy to control.

[0021] In some embodiments of the present application, the long side size of the second microstructure is 5 μm-40 μm, and the aspect ratio of the second microstructure is (5-20): 1. The size of the second microstructure is controlled within the above range, which is easy to manufacture and has good anti-glare and anti-flare effects.

[0022] In some embodiments of the present application, the haze of the glass cover is 20%-50%, and the visible light transmittance of the glass cover is 90%-92%. In this way, the anti-glare and anti-flash effects can be achieved while taking into account the actual effect of the final display screen.

[0023] In some embodiments of the present application, the proportion of the specular reflected light of the first surface is 12%-40%. Controlling the proportion of the specular reflected light of the first surface within the above range is conducive to suppressing the interference of ambient light on the display image.

[0024] In some embodiments of the present application, the distinctness of image (DOI) value of the glass cover plate is 20-60.

[0025] In some embodiments of the present application, the second surface is sequentially stacked with a first optical adhesive layer, a polarizing layer and a display panel. In this way, the glass cover can be fixed on the display surface, and the display effect of the display can be further optimized, and the function of the display can be improved.

[0026] A second aspect of an embodiment of the present application provides an electronic device, including a display screen and a glass cover plate arranged on one side surface of the display screen, wherein the glass cover plate is the glass cover plate provided in the first aspect of the embodiment of the present application; the first surface is arranged away from the display screen.

[0027] In some embodiments of the present application, the electronic device includes any one of a mobile phone, a tablet computer, a laptop computer and a smart watch. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1A A simplified structural diagram of a cross section of a glass cover plate provided in one embodiment of the present application;

[0029] Figure 1B For this application Figure 1A A schematic structural diagram of a top view of a glass cover provided in the provided embodiment;

[0030] Figure 2A A simplified structural diagram of a cross section of a glass cover plate provided in another embodiment of the present application;

[0031] Figure 2B For this application Figure 2A A schematic structural diagram of a top view of a glass cover provided in the provided embodiment;

[0032] Figure 3 A simplified structural diagram of a cross section of a glass cover plate in which a first microstructure is a pit provided in an embodiment of the present application;

[0033] Figure 4 A schematic structural diagram of a top view of a glass cover plate provided in yet another embodiment of the present application;

[0034] Figure 5 A schematic structural diagram of a top view of a glass cover plate provided in yet another embodiment of the present application;

[0035] Figure 6 A schematic diagram of the structure of a top view of a glass cover provided in one embodiment of the present application;

[0036] Figure 7 This is a schematic structural diagram of a top view of a glass cover plate having a second microstructure on its surface provided in one embodiment of the present application.

[0037] Description of the accompanying drawings: 1-glass cover plate; 10-glass substrate; 11-first surface; 12-second surface; 21-first microstructure; 22-second microstructure; 31-first area; 32-second area. DETAILED DESCRIPTION

[0038] As the application scenarios of electronic devices become wider and wider, consumers are becoming more and more dependent on electronic devices outdoors. In outdoor scenes, external light sources often shine on the screen, and the reflected light generated by the external light source will cause the user to be unable to see the screen clearly. In order to solve the above technical problems, anti-glare (AG) glass with randomly distributed protrusions or pits on the surface is usually selected as a glass cover. Although commercially available anti-glare glass can achieve a good anti-glare effect, the random arrangement of protrusions or pits and the size design make some areas on its surface form convergent light. The convergence of light will cause the brightness of this area to be too high, so that the display surface of the display screen has uneven brightness with light and dark mixed, resulting in flash points. In addition, the anti-glare glass cover in the related art is prone to poor clarity. The above two situations will affect the consumer's experience.

[0039] In order to solve the above technical problems, the present application provides a glass cover plate, which is used to be arranged on the surface of the display screen to protect the display screen. Figures 1A to 3 as well as Figure 7 The glass cover plate includes a glass substrate 10, the glass substrate 10 has a first surface 11 and a second surface 12 disposed opposite to each other, a plurality of granular first microstructures 21 are arranged in an array on the first surface 11, or a plurality of fibrous second microstructures 22 are arranged in an interlaced manner; the first microstructures 21 and the second microstructures 22 are protrusions (such as Figure 1A and Figure 2A ) or pits (such as Figure 3 ); The second surface 12 is used to be arranged close to the display screen;

[0040] The lateral dimension of the first microstructure 21 is 5 μm-40 μm; the surface roughness Ra of the first surface 11 is 0.2 μm-0.4 μm. It should be noted that: Figures 1A to 3 as well as Figure 7 Just an illustrative drawing. Figures 1A to 3 The size, number, shape and arrangement of the first microstructures do not constitute a limitation to the present application; Figure 7 The size, number, shape and density of the second microstructures in the glass cover plate do not constitute a limitation to the present application. The cross section of the glass cover plate refers to the cross section obtained by cutting the glass cover plate with any plane parallel to the thickness direction of the glass cover plate; the top view of the glass cover plate refers to the view obtained by orthographic projection from the orthogonal direction of the first surface of the glass cover plate.

[0041] In the embodiment of the present application, the first microstructure 21 is in a granular shape, including: along the thickness direction of the glass substrate 10, the shape of the orthographic projection of the first microstructure 21 on the glass substrate 10 includes but is not limited to a circle, an ellipse, a polygon, etc. Among them, the above polygons include but are not limited to a square, a rectangle, a pentagon, a hexagon, a heptagon, an octagon, a decagon, a dodecagon, etc.

[0042] In the embodiment of the present application, the lateral dimension of the first microstructure 21 refers to the diameter of the circumscribed circle of the orthographic projection. The lateral dimension of the first microstructure 21 can be tested by an optical microscope. Specifically, when the orthographic projection of the first microstructure 21 is a circle, the lateral dimension is the diameter of the orthographic projection; when the orthographic projection of the first microstructure 21 is an ellipse, the lateral dimension is the major axis dimension of the orthographic projection.

[0043] The array-arranged granular first microstructure 21 can effectively reduce the randomness of light refraction in different regions caused by the random distribution of the concave-convex structure, thereby effectively optimizing the consistency of the refraction degree of light on the first surface 11, thereby achieving a better anti-flashing effect and higher clarity. In addition, the array-arranged granular first microstructure 21 can also effectively reduce the reflected light generated by the external light source irradiating on the screen, so that the glass cover can have both better anti-glare and anti-flashing effects.

[0044] Specifically, the lateral size of the first microstructure 21 is 5μm-40μm. If the lateral size is too small (<5μm), the process is difficult to control and difficult to manufacture, which affects the uniformity of the first surface 11 and causes a poor display effect. If the lateral size is too large (>40μm), the anti-glare effect is poor and moiré patterns are easily caused. Specifically, the lateral size of the first microstructure 21 can be, but is not limited to, 5μm, 6μm, 7μm, 8μm, 9μm, 10μm, 12μm, 15μm, 18μm, 20μm, 22μm, 25μm, 28μm, 30μm, 32μm, 35μm, 38μm, 40μm, etc.

[0045] See also Figure 7 When the first surface 11 has the staggered fibrous second microstructures 22, a surface structure similar to paper can be formed, and the second microstructures 22 are also convex or concave relative to the glass substrate 10, and the anti-glare effect can also be achieved. The interlaced fibrous second microstructures 22 seem to be disordered, but compared with the randomly arranged granular concave-convex structure of the glass cover plate of the related art, the surface of the interlaced second microstructures 22 has a higher uniformity, which is conducive to achieving a better anti-glare effect and higher clarity. In addition, the paper-like surface can also provide consumers with a better writing experience.

[0046] In the embodiment of the present application, the surface roughness Ra of the first surface 11 is the arithmetic mean deviation of the profile of the first surface 11, specifically refers to the arithmetic mean of the absolute values ​​of the distances from each point on the actual profile of the first surface 11 to the midline of the profile within the sampling length. Specifically, the surface roughness Ra can be measured using an atomic force microscope, and specific reference can be made to ASME B46.1. In the embodiment of the present application, the Ra of the first surface 11 can be, but is not limited to, 0.2μm, 0.21μm, 0.22μm, 0.23μm, 0.24μm, 0.25μm, 0.26μm, 0.27μm, 0.28μm, 0.29μm, 0.3μm, 0.31μm, 0.32μm, 0.33μm, 0.34μm, 0.35μm, 0.36μm, 0.37μm, 0.38μm, 0.39μm, 0.4μm. It can be understood that when the first surface 11 is arranged with the first microstructure 21, the surface roughness Ra of the first surface 11 mainly depends on the longitudinal dimension of the first microstructure 21 (i.e., the dimension of the first microstructure 21 in the direction parallel to the thickness of the glass substrate 10); when the first surface 11 is staggered with multiple second microstructures 22, the Ra of the first surface 11 mainly depends on the longitudinal dimension and the degree of interweaving of the second microstructure 22. If the surface roughness is too small (<0.2μm), the first surface 11 is too smooth, which will not only affect the anti-glare effect, but also seriously affect the consumer's writing experience when writing with a pen (e.g., a smart stylus); if the surface roughness Ra is too large (>0.4μm), the first surface 11 will be too rough, which will not only affect the anti-glare and anti-flashing effects, but also produce sharp noises when writing, causing discomfort to consumers.

[0047] In the embodiments of this application, please refer to Figures 1A to 2B , the first microstructure 21 may be a protrusion, that is, the first microstructure 21 is protruding relative to the glass substrate 10; see Figure 3 The first microstructure 21 may also be a pit, that is, the first microstructure 21 is recessed relative to the glass substrate 10. In some specific embodiments, the first microstructure 21 is a protrusion. In this way, it is easier to obtain a plurality of first microstructures 21 with high uniformity, thereby ensuring the uniformity of the first surface 11 and optimizing the display effect.

[0048] In some embodiments of the present application, the second surface 12 is a flat surface. It can be understood that the second surface 12 is used to be arranged close to the display screen. In order to fix the glass cover plate on the display screen, in some embodiments, an optical adhesive (OCA) layer is provided on the second surface 12, and the optical adhesive layer is used to adhere to the display screen.

[0049] In some implementations of this application, please continue to refer to Figure 1A and Figure 1B, any two adjacent first microstructures 21 are partially in contact with each other. That is, a plurality of first microstructures 21 are densely arranged on the first surface 11. In this way, the anti-glare effect of the glass cover is further improved. Specifically, it includes but is not limited to the following situations: (1) The surface of the first microstructure 21 relative to the convex or concave part of the first surface 11 is in contact with each other, for example, the first microstructures 21 are all spherical, and the height of the spherical part is greater than its radius, and the curved surfaces of the two adjacent spherical first microstructures 21 are in contact; for example, the first microstructure 21 is hemispherical, and the hemispherical surfaces of the two adjacent first microstructures 21 are tangent. (2) The intersection line of the two adjacent first microstructures 21 and the first surface 11 is in contact, for example, the first microstructure 21 is spherical, and the height of the spherical part is less than its radius, and the intersection line of the two adjacent first microstructures 21 and the first surface 11 is tangent; or, the first microstructure 21 is prism-shaped, and the two adjacent first microstructures 21 share a common bottom edge.

[0050] In other cases, for example, the first microstructure 21 is hemispherical, and when any two adjacent microstructures are tangent, there is still a gap between any two adjacent first microstructures 21. At this time, in some embodiments of the present application, in order to optimize the anti-glare effect of the glass cover, the sum of the orthographic projection areas of the plurality of first microstructures 21 in the thickness direction of the glass substrate 10 accounts for more than 80% of the orthographic projection area of ​​the glass substrate 10 in its thickness direction. Specifically, the sum of the orthographic projection areas of the plurality of first microstructures 21 in the thickness direction of the glass substrate 10 may be, but is not limited to, 80%, 82%, 85%, 88%, 90%, 92%, 95%, 98% of the orthographic projection area of ​​the glass substrate 10 in its thickness direction. In some specific embodiments, it can be achieved that there is no gap between any two adjacent first microstructures 21, and at this time, the sum of the orthographic projection areas of the plurality of first microstructures 21 in the thickness direction of the glass substrate 10 accounts for 100% of the orthographic projection area of ​​the glass substrate 10 in its thickness direction.

[0051] In some other implementations of this application, please see Figure 2A and Figure 2B , multiple first microstructures 21 are arranged at intervals. That is, any two adjacent first microstructures 21 do not contact each other. In this way, there are gaps between the first microstructures arranged in the array, and using relatively few first microstructures can achieve excellent anti-glare function and good anti-flashing effect, and reduce the loss of screen output light, thereby further improving clarity and being easy to prepare.

[0052] In some specific embodiments, the spacing between any two adjacent first microstructures 21 is 2μm-30μm. Appropriate spacing is conducive to ensuring the anti-glare effect and clarity of the glass cover, and is easy to manufacture. In the embodiment of the present application, the above spacing refers to the minimum straight-line distance between the edges of two adjacent first microstructures. Specifically, the spacing between any two adjacent first microstructures 21 can be, but is not limited to, 2μm, 3μm, 5μm, 8μm, 10μm, 12μm, 15μm, 18μm, 20μm, 22μm, 25μm, 28μm, 30μm.

[0053] In some embodiments of the present application, the distribution density of the first microstructures 21 on the first surface 11 is 6 / 10 4 μm 2 -400 pcs / 10 4 μm 2 In this way, the arrangement density of the first microstructures 21 on the first surface 11 can be controlled within a suitable range, thereby ensuring a good anti-glare effect and anti-glare effect as well as a good clarity, and being easy to manufacture. Specifically, the distribution density of the first microstructures 21 on the first surface 11 can be, but is not limited to, 6 / 10 4 μm 2 , 10 / 10 4 μm 2 , 20 / 10 4 μm 2 , 50 / 10 4 μm 2 , 80 / 10 4 μm 2 , 100 / 10 4 μm 2 , 120 / 10 4 μm 2 , 150 / 10 4 μm 2 , 180 / 10 4 μm 2 , 200 / 10 4 μm 2 , 220 / 10 4 μm 2 , 250 / 10 4 μm 2 , 280 / 10 4 μm 2 , 300 / 10 4 μm 2 , 320 / 10 4 μm 2 , 350 / 10 4 μm 2 、380 / 104 μm 2 , 400 / 10 4 μm 2 .

[0054] In the embodiment of the present application, the array arrangement period of the plurality of first microstructures 21 includes but is not limited to rectangular periodic arrangement, pentagonal periodic arrangement, hexagonal periodic arrangement, etc. Among them, the pentagonal periodic arrangement may be but is not limited to a regular pentagonal periodic arrangement, and the hexagonal periodic arrangement may be but is not limited to a regular hexagonal periodic arrangement. In some embodiments of the present application, the spacing between any two adjacent first microstructures 21 is equal. In this way, it is beneficial to ensure the uniformity of the first surface 11, and it is easy to manufacture.

[0055] In some cases, regardless of whether the plurality of first microstructures 21 are densely arranged or spaced on the first surface 11, the lateral size of the first microstructure 21 is 10 μm-30 μm. In this way, a better anti-glare effect and anti-flash effect can be achieved. In addition, considering the size of the pen tip of the current smart stylus, the lateral size of the first microstructure 21 is controlled within the above range. When consumers use the smart stylus to write on the first surface 11, the first surface 11 can form a good wrapping property for the pen tip, thereby maintaining a good writing effect. Specifically, the lateral size of the first microstructure 21 can be, but is not limited to, 10 μm, 11 μm, 12 μm, 13 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.

[0056] In some embodiments of the present application, the morphology of the multiple first microstructures 21 is the same, and the difference in lateral dimensions is ≤10%. In this way, the uniformity of the first surface 11 is better, and the randomness of light refraction due to different regions can be more effectively avoided, ensuring the anti-glare and anti-flashing effects. Specifically, the same morphology means: the same spherical protrusions or pits, the same prismatic protrusions or pits, the same prism-shaped protrusions or pits, etc., and the shape of the first microstructure along the thickness direction of the glass substrate is the same. Specifically, the difference in lateral dimensions of the multiple first microstructures ≤10% is defined as: the lateral dimension of the first microstructure with the largest lateral dimension is αμm, the lateral dimension of the first microstructure with the smallest lateral dimension is βμm, (α-β) / α×100%≤10%. The difference in lateral dimensions of the multiple first microstructures can be, but is not limited to, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%.

[0057] In some implementations of this application, please see Figure 4-Figure 5, the first surface 11 includes a plurality of first regions 31 and a plurality of second regions 32 arranged alternately, the first region 31 includes a plurality of first microstructures 21 with the same morphology and a lateral size difference of ≤10%, and the second region 32 includes a plurality of first microstructures 21 with the same morphology and a lateral size difference of ≤10%; the lateral size of the first microstructure 21 in the first region 31 is greater than the lateral size of the first microstructure 21 in the second region 32, and / or the morphology of the first microstructure 21 in the first region 31 is different from the morphology of the first microstructure 21 in the second region 32. It can be understood that the lateral size of the first microstructure 21 in the first region 31 is greater than the lateral size of the first microstructure 21 in the second region 32 means that the lateral size of all the first microstructures 21 in the first region 31 is greater than the lateral size of all the first microstructures 21 in the second region 32.

[0058] In some other embodiments, see Figure 6 , a single first region 31 includes a first microstructure 21, and a second region 32 includes a plurality of first microstructures 21 with the same morphology and a lateral size difference of ≤10%. In some extreme cases, a single first region 31 contains only one first microstructure 21, and a second region 32 contains only one first microstructure 21. Regardless of the above situation, when the first region 31 and the second region 32 are alternately arranged on the first surface 11, the paper-like feel of the first surface 11 can be improved while ensuring a good anti-glare and anti-flash effect, and a more suitable friction force can be provided, thereby improving the writing experience of consumers. Specifically, for the convenience of explanation, the first region 31 is recorded as A, the second region 32 is recorded as B, the first microstructure 21 in the first region 31 is recorded as the first microstructure a, and the first microstructure 21 in the second region 32 is recorded as the first microstructure b. The first direction and the second direction are perpendicular to each other, and the first direction and the second direction are parallel to the first surface 11. In the embodiment of the present application, the alternating arrangement of the plurality of first regions 31 and the plurality of second regions 32 includes but is not limited to the following situations: (1) along the first direction, the first surface 11 includes ABABAB, or BABABA; (2) along the second direction, the first surface 11 includes ABABAB, or BABABA; (3) along the first direction, the first surface 11 includes ABABAB, or BABABA; and, along the second direction, the first surface 11 includes ABABAB, or BABABA. In the embodiment of the present application, the shapes of the first region 31 and the second region 32 are not limited, and they can be rectangular or in other shapes.

[0059] Specifically, the lateral dimension of the first microstructure a is greater than the lateral dimension of the first microstructure b, and the longitudinal dimension of the first microstructure a may be equal to that of the first microstructure b, or the longitudinal dimension of the first microstructure a may be greater than that of the first microstructure b. In some specific embodiments, the ratio of the lateral dimension of the first microstructure a to the lateral dimension of the first microstructure b is x, and the ratio of the longitudinal dimension of the first microstructure a to the first microstructure b is also x.

[0060] Specifically, the plurality of first microstructures a and the plurality of first microstructures b are densely arranged, or the plurality of first microstructures a and the plurality of first microstructures b are arranged at intervals. That is, the plurality of first microstructures 21 in the first region 31 and the plurality of first microstructures 21 in the second region 32 are densely arranged at the same time, or are arranged at intervals at the same time. When they are arranged at intervals at the same time, the spacing between any two adjacent first microstructures a and the spacing between any two adjacent first microstructures b can be equal or unequal; when the spacings are unequal, the above spacings can be adaptively adjusted according to the lateral dimensions of the first microstructures 21 in the corresponding region.

[0061] In some embodiments of the present application, the ratio of the lateral size of the first microstructure a in the first region 31 to the lateral size of the first microstructure b in the second region 32 is (2-8): 1. In this way, it is more conducive to constructing a glass cover with excellent anti-glare, anti-flash and good writing experience. Specifically, the ratio of the lateral size of the first microstructure a to the first microstructure b can be, but is not limited to, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1.

[0062] In some embodiments of the present application, the lateral size of the first microstructure 21 in the first region 31 is 20μm-40μm, and the lateral size of the first microstructure 21 in the second region 32 is 5μm-20μm. That is, the lateral size of the first microstructure a is 20μm-40μm, and the lateral size of the first microstructure b is 5μm-20μm. In this way, while ensuring good anti-glare and anti-flash effects, it is more suitable for the tip size of the existing smart stylus pen, and the size floating of large and small particles can provide a better wrapping feeling for the tip when writing, and enhance the writing experience of consumers. Specifically, the lateral size of the first microstructure a can be, but not limited to, 20μm, 22μm, 25μm, 28μm, 30μm, 32μm, 35μm, 38μm, 40μm; the lateral size of the first microstructure b can be, but not limited to, 5μm, 8μm, 10μm, 12μm, 15μm, 18μm, 20μm. It can be understood that when the lateral size of the first microstructure a is 20 μm, the lateral size of the first microstructure b is less than 20 μm; when the lateral size of the first microstructure b is 20 μm, the lateral size of the first microstructure a is greater than 20 μm.

[0063] In some embodiments of the present application, the sum of the areas of the plurality of first regions 31 is 50%-80% of the orthographic projection area of ​​the glass substrate 10 in the thickness direction thereof. Specifically, the sum of the areas of the plurality of first regions 31 may be, but is not limited to, 50%, 52%, 55%, 58%, 60%, 62%, 65%, 68%, 70%, 72%, 75%, 78%, 80% of the orthographic projection area of ​​the glass substrate 10 in the thickness direction thereof. In this way, the anti-glare effect and the anti-flashing effect can be taken into account while providing consumers with a better writing experience.

[0064] In some embodiments of the present application, the first microstructure 21 is in the shape of a spherical segment, and the curved surface of the spherical segment-shaped first microstructure 21 is arranged away from the glass substrate 10, and the height H of the spherical segment-shaped first microstructure 21 is less than or equal to its radius R. It can be understood that the first microstructure 21 here is a protrusion. The part of the sphere cut off by the plane is called the spherical segment, the cross section is called the bottom surface of the spherical segment, and the length of the remaining line segment after the diameter perpendicular to the cross section is cut is called the height H of the spherical segment; the radius R of the spherical segment is the radius of the sphere before being cut off. In some specific embodiments, H≤1 / 2R. In some specific embodiments, H≤1 / 3R. In this way, the glass cover plate 1 is easy to prepare, and it is easy to control the uniformity of the first surface 11 to be high. When the height of the first microstructure 21 is equal to its radius, the first microstructure 21 is hemispherical.

[0065] In some embodiments of the present application, the material of the first microstructure 21 is resin; in this case, the cross-sectional structure of the glass cover plate 1 can be seen in Figure 1A In some specific embodiments, the material of the first microstructure 21 is silicone resin. In some specific embodiments, the refractive index of the silicone resin is equal to or similar to that of the glass substrate 10. In this case, the first microstructure 21 is a protrusion.

[0066] In some embodiments of the present application, the material of the second microstructure 22 is resin. In some specific embodiments, the material of the second microstructure 22 is silicone resin. In some specific embodiments, the refractive index of the silicone resin is equal to or similar to that of the glass substrate 10. In this case, the second microstructure 22 is a protrusion.

[0067] In some other implementations of the present application, the second microstructure 22 is directly formed by the glass substrate 10 .

[0068] In some embodiments of the present application, the long side dimension of the fibrous second microstructure 22 is 5 μm-40 μm, and the aspect ratio is (5-20): 1. The length dimension of the second microstructure 22 refers to the dimension of the fibrous second microstructure 22 in its extension direction, and the aspect ratio is the ratio of the long side dimension of the fibrous second microstructure 22 to its radial dimension, wherein the radial direction is perpendicular to the extension direction of the second microstructure 22. The size of the second microstructure 22 is controlled within the above range, which is easy to manufacture and has good anti-glare and anti-flashing effects. Specifically, the long side size of the second microstructure 22 may be, but not limited to, 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, 22 μm, 25 μm, 28 μm, 30 μm, 32 μm, 35 μm, 38 μm, 40 μm, and the aspect ratio of the second microstructure 22 may be, but not limited to, 5: 1, 8: 1, 10: 1, 12: 1, 15: 1, 18: 1, 20: 1. In some specific embodiments, the long side sizes and aspect ratios of the plurality of second microstructures 22 are different and are all controlled within the above ranges, so that the similarity between the first surface 11 and the fiber structure of the paper surface can be improved.

[0069] In the embodiments of the present application, the thickness of the glass cover plate is not limited, and those skilled in the art can make a choice according to actual production needs. However, considering the thinness and display effect of the final display device, in some specific embodiments, the thickness of the glass cover plate is 0.3mm-0.55mm. Specifically, the thickness of the glass cover plate can be, but is not limited to, 0.3mm, 0.32mm, 0.35mm, 0.38mm, 0.4mm, 0.42mm, 0.45mm, 0.48mm, 0.5mm, 0.52mm, and 0.55mm.

[0070] In some embodiments of the present application, the haze of the glass cover plate is 20%-50%. Controlling the haze of the glass cover plate within the above range can not only have a better anti-flashing effect, but also reduce the impact on clarity. Specifically, the haze of the glass cover plate can be, but is not limited to, 20%, 22%, 25%, 28%, 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, and 50%. In the embodiments of the present application, the haze can be measured through the glass cover plate according to ASTM D1003. In the embodiments of the present application, a haze meter can be used to measure the haze of the glass cover plate. Specifically, a haze meter is used to measure the ratio of the scattered light transmittance td of the glass cover plate that deviates from the propagation direction by 2.5° to its total transmittance t1, which is usually expressed as a percentage.

[0071] In some embodiments of the present application, the visible light transmittance of the glass cover plate is 90%-92%. Among them, the wavelength of visible light is about 400nm-700nm. In the embodiment of the present application, the visible light transmittance can be determined according to ASTM C1649-14 (2021). In the embodiment of the present application, the visible light transmittance can be tested using a visible light transmittance meter. Specifically, the visible light transmittance of the glass cover plate can be, but is not limited to, 90%, 90.5%, 91%, 91.5%, 92%, etc.

[0072] In some embodiments of the present application, the proportion of specular reflected light of the first surface 11 is 12%-40%. The proportion of specular reflected light refers to: when visible light is incident from the first surface 11 at a certain angle, the proportion of specular reflected light in all reflected light (including specular reflected light and diffuse reflection, etc.) is tested. Controlling the proportion of specular reflected light of the first surface 11 within the above range is conducive to suppressing the interference of ambient light on the display screen. Specifically, the proportion of specular reflected light of the first surface 11 can be, but is not limited to, 12%, 15%, 18%, 20%, 22%, 25%, 28%, 40%. In the embodiment of the present application, a glass cover is installed on the surface of a display screen, and its second surface is bonded to the display screen, and the first surface is set away from the display screen. A colorimeter is used to test the SCI (Specular Component Include) value and SCE (Specular Component Exclude) value of the display screen with a glass cover, wherein SCI includes specular reflected light, and SCE is other reflected light except specular reflected light. The proportion of specular reflected light of the first surface 11 is (1-SCE / SCI)×100%.

[0073] In some embodiments of the present application, the DOI value of the glass cover is 20-60. The DOI value can characterize the clarity of the glass cover to the outgoing light. When the DOI value is closer to 100, it is closer to the mirror surface; when the DOI value is closer to 1, it is closer to the frosted surface. In the embodiment of the present application, the DOI value can be measured according to ASTM D5767, DOI = [1-(Ros / Rs)] × 100, Rs is the gloss value in the mirror direction (the average gloss value between +0.05° and -0.05° of the mirror reflection of the first surface 11 and the incident light), Ros refers to the gloss value within the range of 0.2°-0.4° from the mirror direction; and the mirror direction has the same angle with respect to the orthogonal direction of the first surface 11 as the incident direction of the light with respect to the direction orthogonal to the first surface 11, but the mirror direction is opposite to the incident direction, and the mirror direction in other directions is the mirror image of the incident direction with respect to the direction orthogonal to the first surface 11. Specifically, the DOI value of the glass cover plate can be, but is not limited to, 20, 22, 25, 28, 30, 32, 35, 38, 40, 42, 45, 48, 50, 52, 55, 58, or 60.

[0074] In some specific embodiments of the present application, the haze of the glass cover is 20%-50%, the visible light transmittance is 90%-92%, the distinctness of image DOI value is 20-60, and the mirror reflectivity of the first surface 11 is 12%-40%.

[0075] Considering the application of the glass cover plate in the display screen, it is necessary to fix the glass cover plate on the surface of the display screen. In some embodiments of the present application, an optically clear adhesive (OCA) layer is provided on the second surface 12. The OCA layer can not only play a bonding effect, but also significantly reduce the reflected light at the interface between the display screen and the glass cover plate, thereby greatly improving the brightness and contrast of the final display surface. In the embodiment of the present application, the material of the OCA layer can be any material known in the art. Specifically, the material of the OCA layer includes but is not limited to polyethylene terephthalate (PET), polyolefin, acrylic pressure-sensitive resin, epoxy resin, etc.

[0076] In some specific embodiments, a first optical adhesive layer, a polarizing layer, and a display panel are sequentially stacked on the second surface 12 .

[0077] In some embodiments of the present application, a plurality of first microstructures 21 arranged in an array may be formed on the first surface 11 by a light irradiation process. In some specific embodiments, a process template may be prepared first, and the process template may be a complementary pattern of a plurality of first microstructures 21 or second microstructures 22, and the process template may be fixed on the first surface 11 of the glass substrate 10, and then a resin solution (e.g., an organic silane solution) may be sprayed, and then the resin may be cured by light irradiation or heating to obtain the first microstructure 21 or the second microstructure 22. At this time, the first microstructure 21 or the second microstructure 22 is a protrusion.

[0078] In some other embodiments of the present application, an etching process is used to etch the surface of the glass substrate 10 to obtain the first surface 11. Specifically, the above-mentioned etching process includes but is not limited to chemical etching, laser etching, etc. At this time, the first microstructure 21 or the second microstructure 22 can be a protrusion or a pit. When the complementary pattern of the first microstructure 21 or the second microstructure 22 is etched on the surface of the glass substrate 10, the obtained first microstructure 21 or the second microstructure 22 is a protrusion; when the pattern of the first microstructure 21 or the second microstructure 22 is directly etched on the surface of the glass substrate 10, the obtained first microstructure 21 or the second microstructure 22 is a pit.

[0079] In some other embodiments of the present application, a first microstructure 21 or a second microstructure 22 can be formed on the surface of the glass substrate 10 by using a yellow light process. Specifically, the yellow light process includes: firstly coating the raw material for forming the first microstructure 21 or the second microstructure 22 on the surface of the glass substrate 10, then setting a mask on the raw material layer, exposing and curing the raw material layer under the protection of the mask, and obtaining an irradiated coating area and an unirradiated coating area on the surface of the glass substrate 10; selectively developing the irradiated coating area, forming the first microstructure 21 or the second microstructure 22 on the surface of the glass substrate 10, and obtaining a glass cover plate. Alternatively, etching the glass substrate 10 obtained after development, and forming the first microstructure 21 or the second microstructure 22 on the surface of the glass substrate 10.

[0080] It can be understood that the raw materials used to form the first microstructure 21 or the second microstructure 22 include but are not limited to photosensitive materials. Specifically, the photosensitive material can undergo cross-linking / polymerization reaction under light irradiation (positive patterning material), or can increase solubility under light irradiation (negative patterning material). When the photosensitive material is a positive patterning material, and the plane pattern of the mask is a plane pattern of a plurality of first microstructures 21 arranged in an array or a plane pattern of a plurality of second microstructures 22 arranged in an interlaced manner, the obtained first microstructure 21 or second microstructure 22 is a protrusion; when the photosensitive material is a positive patterning material, and the plane pattern of the mask is a complementary pattern of a plane pattern of a plurality of first microstructures 21 arranged in an array or a plane pattern of a plurality of second microstructures 22 arranged in an interlaced manner, the obtained first microstructure 21 or second microstructure 22 is a pit. Similarly, when the photosensitive material is a negative patterning material, the formed first microstructure 21 or second microstructure 22 can be a protrusion or a pit, which will not be repeated here.

[0081] The embodiment of the present application also provides an electronic device, including a display screen and a glass cover plate arranged on one side surface of the display screen, wherein the glass cover plate is the aforementioned glass cover plate provided in the embodiment of the present application, and the first surface of the glass cover plate is arranged away from the display screen. It can be understood that the glass cover plate is arranged on the display surface of the display screen, and the first surface constitutes the outer surface of the electronic device.

[0082] Due to the use of the glass cover plate of the embodiment of the present application, the display screen of the electronic device can have both excellent anti-glare and anti-flash effects, and has good display clarity, which can significantly improve the user experience of consumers, so that the electronic device can have strong market competitiveness. In addition, when writing on the screen of the electronic device with a smart stylus, a better writing experience can also be obtained.

[0083] In some embodiments of the present application, the above-mentioned electronic devices include but are not limited to 3C electronic products, for example, mobile phones, tablet computers, laptop computers, smart watches and other wearable electronic devices.

[0084] In the embodiment of the present application, the range value represented by "ab" includes endpoint values ​​a and b. For example, the range represented by "5μm-40μm" includes endpoint value 5μm and endpoint value 40μm.

[0085] The above is an exemplary embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made thereto without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A glass cover plate, used to be arranged on the surface of a display screen, It is characterized in that The glass substrate comprises a first surface and a second surface opposite to each other, the first surface has a plurality of first granular microstructures arranged in an array, or a plurality of second fibrous microstructures arranged in an interlaced manner; the first microstructure and the second microstructure are protrusions or pits; and the second surface is used to be arranged close to the display screen; The lateral dimension of the first microstructure is 5 μm-40 μm; the surface roughness Ra of the first surface is 0.2 μm-0.4 μm.

2. The glass cover plate according to claim 1, It is characterized in that The second surface is a flat surface.

3. The glass cover plate according to claim 1, It is characterized in that Partial boundaries of any two adjacent first microstructures are in contact.

4. The glass cover plate according to claim 3, It is characterized in that The sum of the orthographic projection areas of the plurality of first microstructures in the thickness direction of the glass substrate accounts for 80%-100% of the orthographic projection area of ​​the glass substrate in the thickness direction thereof.

5. The glass cover plate according to claim 1, It is characterized in that A plurality of the first microstructures are arranged at intervals.

6. The glass cover plate according to claim 5, It is characterized in that The distance between any two adjacent first microstructures is 2 μm-30 μm.

7. The glass cover plate according to claim 5 or 6, It is characterized in that The distribution density of the first microstructures on the first surface is 6 / 10 4 μm 2 -400 pcs / 10 4 μm 2 .

8. The glass cover plate according to any one of claims 1 to 7, It is characterized in that The lateral size of the first microstructure is 10 μm-30 μm.

9. The glass cover plate according to any one of claims 1 to 8, It is characterized in that The morphologies of the plurality of first microstructures are the same, and the lateral dimension deviation is ≤10%.

10. The glass cover plate according to any one of claims 1 to 7, It is characterized in that The first surface includes a plurality of first regions and a plurality of second regions arranged alternately; The first region includes a plurality of the first microstructures having the same morphology and a lateral size deviation of ≤10%, and the second region includes a plurality of the first microstructures having the same morphology and a lateral size deviation of ≤10%; or, the first region includes a single first microstructure, and the second region includes a plurality of the first microstructures having the same morphology and a lateral size deviation of ≤10%; The lateral size of the first microstructure in the first region is greater than the lateral size of the first microstructure in the second region, and / or the morphology of the first microstructure in the first region is different from the morphology of the first microstructure in the second region.

11. The glass cover plate according to claim 10, It is characterized in that The ratio of the lateral dimension of the first microstructure in the first region to the lateral dimension of the first microstructure in the second region is (2-8):

1.

12. The glass cover plate according to claim 10 or 11, It is characterized in that The lateral size of the first microstructure in the first region is 20 μm-40 μm, and the lateral size of the first microstructure in the second region is 5 μm-20 μm.

13. The glass cover plate according to any one of claims 10 to 12, It is characterized in that The sum of the areas of the plurality of first regions is 50% to 80% of the orthographic projection area of ​​the glass substrate in the thickness direction thereof.

14. The glass cover plate according to any one of claims 1 to 13, It is characterized in that The first microstructure is in a spherical segment shape, and the curved surface of the first microstructure in the spherical segment shape is arranged away from the glass substrate, and the height of the first microstructure is less than or equal to its radius.

15. The glass cover plate according to claim 1, It is characterized in that The long side dimension of the second microstructure is 5 μm-40 μm, and the aspect ratio of the second microstructure is (5-20):

1.

16. The glass cover plate according to any one of claims 1 to 15, It is characterized in that The haze of the glass cover plate is 20%-50%, and the visible light transmittance of the glass cover plate is 90%-92%.

17. The glass cover plate according to any one of claims 1 to 16, It is characterized in that The specular reflected light of the first surface accounts for 12%-40%.

18. The glass cover plate according to any one of claims 1 to 17, It is characterized in that The distinctness of image (DOI) value of the glass cover plate is 20-60.

19. The glass cover plate according to any one of claims 1 to 18, It is characterized in that The second surface is sequentially stacked with a first optical adhesive layer, a polarizing layer and a display panel.

20. An electronic device, It is characterized in that It comprises a display screen and a glass cover plate as described in any one of claims 1 to 19 arranged on a side surface of the display screen; the first surface is arranged away from the display screen.

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