Cover glass, display module and manufacturing method for cover glass

Abstract

The present disclosure relates to a cover glass, comprising a light-emitting surface and a side surface adjacent to the light-emitting surface. A first region on the side surface is provided with an anti-reflection structure, which comprises a glass-ceramic structure. By providing an anti-reflection structure in the first region of the side surface, abnormal light reflection on the side surface of the cover glass is reduced; moreover, the anti-reflection structure, which is a glass-ceramic structure, can effectively enhance the edge strength of the cover cover, improving the mechanical reliability of the entire device. The present disclosure further relates to a display module and a manufacturing method for the cover glass.

Description

Manufacturing methods for glass cover, display module, and glass cover.

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411215536.5, filed in China on August 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of display product manufacturing technology, and in particular to a glass cover, a display module, and a method for manufacturing the glass cover. Background Technology

[0004] Currently, smart terminal products employing display modules are widely prevalent, and consumers are placing increasingly stringent demands on their performance in various aspects. For example, there is a growing emphasis on aesthetics and stricter requirements for mechanical reliability. This places higher demands on the appearance and performance of display modules and their constituent components. These requirements are even more urgent for wearable products, which operate under more demanding conditions.

[0005] Regarding the aesthetics of the entire device, increasing the screen-to-body ratio is undoubtedly one of the most discussed topics, and reducing the border can effectively improve the screen-to-body ratio. Wearable products, due to the harsh operating environments, often use flange-mounted protrusions to enhance overall mechanical reliability. With narrow bezel designs, the distance between the edge of the protrusion and the display area needs to be reduced. In actual samples, abnormal reflections were found on the sidewalls of the protrusions, leading to a deterioration in the user experience. As narrow bezel designs become increasingly extreme, this phenomenon may also occur in 2D cover glass. Furthermore, the edges of wearable glass covers are their weak points, and their mechanical reliability is continuously being reviewed and improved. Summary of the Invention

[0006] To address the aforementioned technical problems, this disclosure provides a glass cover plate, a display module, and a method for manufacturing the glass cover plate, thereby resolving the issue of abnormal reflection on the side of the glass cover plate.

[0007] To achieve the above objectives, the technical solution adopted in this embodiment is: a glass cover plate, including a light-emitting surface and a side surface adjacent to the light-emitting surface, wherein a first region on the side surface is provided with an anti-reflection structure, and the anti-reflection structure includes a microcrystalline glass structure.

[0008] Optionally, the microcrystalline glass structure is formed by doping the side surface with rare earth elements to form rare earth silicate grains.

[0009] Optionally, the surface of the first region is frosted.

[0010] Optionally, the frosted surface is formed by the rare earth silicate grains extending beyond the surface of the first region.

[0011] Optionally, the glass cover includes a light-transmitting area and a light-shielding area located around the light-transmitting area. The length S of the first area in a first direction is obtained by the following formula: S≥TB*tanA, where T is the thickness of the glass cover in the first direction, B is the distance from the light-transmitting area to the boundary of the glass cover in the second direction, and A is the angle between the visible reflected light rays reflected in the first area and the light-emitting surface. The first direction is perpendicular to the light-emitting surface, and the second direction is parallel to the light-emitting surface.

[0012] Optionally, the angle A between the visible reflected light rays reflected from the first region and the light-emitting surface is greater than or equal to 30 degrees.

[0013] Optionally, the glass cover includes a light-incident surface disposed opposite to the light-emitting surface, the light-incident surface including a second region located in the light-shielding area, the second region being provided with an ink layer.

[0014] Optionally, the glass cover plate has a rectangular cross-section in the direction perpendicular to the light-emitting surface; or,

[0015] The glass cover plate has a convex shape in the cross section perpendicular to the light-emitting surface. In the direction perpendicular to the light-emitting surface, the glass cover plate includes a first part and a second part stacked together. In the direction parallel to the light-emitting surface, the area of ​​the first part is smaller than the area of ​​the second part, and the side is located in the first part.

[0016] This disclosure also provides a display module, including a display panel and the aforementioned glass cover, wherein the glass cover is located on the light-emitting side of the display panel.

[0017] This disclosure also provides a method for manufacturing a glass cover plate, which includes the following steps:

[0018] Provide glass substrates;

[0019] Rare earth oxides are sprayed onto a first region on the side of the glass substrate to form a rare earth oxide layer.

[0020] The rare earth oxide layer is subjected to heat treatment to allow rare earth elements to diffuse onto the glass substrate and precipitate silicate grains.

[0021] Optional, also includes:

[0022] The silicate grains are cooled to allow them to grow and extend beyond the surface of the first region, thereby forming a frosted surface on the surface of the first region.

[0023] The beneficial effects of this disclosure are: by setting an anti-reflective structure in the first area on the side, abnormal reflections on the side of the glass cover are reduced, and the anti-reflective structure is a microcrystalline glass structure, which can effectively improve the edge strength of the cover and improve the mechanical reliability of the whole machine. Attached Figure Description

[0024] Figure 1 shows a schematic diagram of the side of the flange boss cover plate in the related technology being in a mirror state;

[0025] Figure 2 shows a schematic diagram of the side surface of the 2D cover plate in the related technology being mirror-like;

[0026] Figure 3 shows a schematic diagram of the flange boss cover plate in an embodiment of this disclosure;

[0027] Figure 4 shows a schematic diagram of the 2D cover plate in an embodiment of this disclosure;

[0028] Figure 5 shows a schematic diagram of diffuse reflection of light on the microcrystalline glass structure in the flange boss cover plate of this disclosure embodiment;

[0029] Figure 6 shows a schematic diagram of diffuse reflection of light on the microcrystalline glass structure in a 2D cover plate according to an embodiment of the present disclosure;

[0030] Figure 7 shows a schematic diagram of spraying rare earth oxides on the side of the flange boss cover plate in an embodiment of this disclosure.

[0031] Figure 8 shows a schematic diagram of spraying rare earth oxides on the side of a 2D cover plate in an embodiment of this disclosure;

[0032] Figure 9 is a schematic diagram showing the area of ​​the visible region where abnormal light is reflected on the side of the flange boss cover plate in an embodiment of the present disclosure.

[0033] Figure 10 shows a schematic diagram of the visible area where abnormal light is reflected on the side of the cover plate in Embodiment 2D of this disclosure;

[0034] Figure 11 shows a schematic diagram of the area range of the first region in the flange boss cover plate of this embodiment;

[0035] Figure 12 shows a schematic diagram of the area range of the first region in the cover plate of Embodiment 2D of this disclosure;

[0036] Figure 13 shows a schematic diagram of a circular flange boss cover plate;

[0037] Figure 14 shows a schematic diagram of a square flange boss cover plate;

[0038] Figure 15 shows a schematic diagram of a circular 2D cover plate;

[0039] Figure 16 shows a schematic diagram of a 2D cover plate that is square;

[0040] Figure 17 is a schematic diagram illustrating the calculation principle of the distance between the extreme reflective point of the light-emitting surface of the flange boss cover plate away from the glass cover plate and the back of the glass cover plate in an embodiment of the present disclosure. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0042] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0043] The features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include features in the strict sense of "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include certain tolerances. Taking into account the measurement and the tolerances associated with the measurement of a specific quantity (e.g., limitations of the measurement system), they represent the acceptable deviation range for a specific value as determined by a person skilled in the art. For example, "approximately" can mean within one or more standard deviations, or within 3% or 5% of said value.

[0044] Figure 1 shows a schematic diagram of the optical path of the flange boss cover plate in the related technology. Figure 2 shows a schematic diagram of the optical path of the 2D cover plate in the related technology. The vertical sidewalls of both cover plates achieve a mirror finish after edge polishing. Normal light from the AA area of ​​the display panel (light 100 indicated by the dark blue arrow) is emitted in all directions, and some of the light shines on the vertical sidewall of the cover plate 10, where it undergoes specular reflection, producing abnormal reflected light (light 200 indicated by the light blue arrow). The virtual image formed by the abnormal reflected light interferes with the normal display of the wearable smart terminal.

[0045] Referring to Figures 3-6, in order to address the above-mentioned problems, this embodiment provides a glass cover plate, including a light-emitting surface 1001 and a side surface 1002 adjacent to the light-emitting surface 1001. A first region on the side surface 1002 is provided with an anti-reflection structure, which includes a microcrystalline glass structure 1.

[0046] Microcrystalline glass refers to a base glass with a specific composition, either with or without a nucleating agent, which undergoes crystallization heat treatment at a certain temperature regime. This process causes a large number of tiny crystals to precipitate uniformly within the glass, forming a dense multiphase composite of microcrystalline and glass phases. As a special type of glass, microcrystalline glass outperforms ordinary glass in terms of material strength and scratch resistance. This embodiment utilizes these properties of microcrystalline glass to form a microcrystalline glass structure 1 on the side 1002 of the glass cover plate, creating an anti-reflective structure. The microcrystalline glass structure 1 can be formed both inside and on the surface (the surface of the first region) of the glass cover plate, improving the reflection phenomenon on the side 1002 of the glass cover plate and effectively enhancing the edge strength of the cover plate, thereby improving the overall mechanical reliability of the machine.

[0047] Figure 5 shows a schematic diagram of a display module using a flanged boss cover plate, and Figure 6 shows a schematic diagram of a display module using a 2D cover plate. The display module includes a display panel, a glass cover plate 10 located on the light-emitting side of the display panel, and a frame 20 surrounding the display panel and the glass cover plate. In the light emitted from the AA area of ​​the display panel, normal light is emitted from the light-transmitting area of ​​the light-emitting surface 1001, while abnormal light is incident on the side surface 1002. After passing through the microcrystalline glass structure 1, diffuse reflection and transmission occur. Compared to Figures 1 and 2, in this embodiment, the microcrystalline glass structure 1 is provided on the side surface 1002, improving the problem of side reflection.

[0048] In an exemplary embodiment, the microcrystalline glass structure is formed by doping the side surface with rare earth elements to form rare earth silicate grains.

[0049] The raw material for glass covers is aluminosilicate glass. By doping with rare earth elements (such as Y, Sc, Dy, Er, and Gd), rare earth silicate grains can be formed, resulting in a microcrystalline glass structure. Rare earth elements diffuse and nucleate within the glass at suitable temperatures (rare earth silicates), and then these nuclei grow into grains. These grains are distributed both inside and on the surface of the glassy composition; that is, rare earth silicate grains are distributed throughout the interior and surface of the glass cover.

[0050] In an exemplary embodiment, the surface of the first region is a frosted surface.

[0051] In an exemplary embodiment, the frosted surface is formed by the rare earth silicate grains extending beyond the surface of the first region.

[0052] During growth, rare-earth silicate grains located on the surface of the first region extend beyond the surface, forming a grain-frosted surface. This grain-frosted surface effectively reduces the microscopic flatness of the glass cover surface, preventing it from becoming a mirror-like state. This causes abnormally reflected light to undergo diffuse reflection and transmission, improving the reflection problem on the sides of the glass cover.

[0053] In an exemplary embodiment, the glass cover includes a light-transmitting area and a light-shielding area located around the light-transmitting area. The length S of the first area in a first direction is obtained by the following formula: S≥TB*tanA, where T is the thickness of the glass cover in the first direction, B is the distance from the light-transmitting area to the boundary of the glass cover in the second direction, and A is the angle between the visible reflected light rays reflected in the first area and the light-emitting surface. The first direction is perpendicular to the light-emitting surface, and the second direction is parallel to the light-emitting surface.

[0054] In an exemplary embodiment, the angle A between the visible reflected light rays reflected from the first region and the light-emitting surface is greater than or equal to 30 degrees, but is not limited thereto.

[0055] Taking an example where the angle A between the visible reflected light rays reflected from the first region and the light-emitting surface is 30 degrees, the setting of the length of the first region in the first direction will be explained.

[0056] Referring to Figures 9-12, the glass cover includes a first part 101 and a second part 102 stacked together. The cross-sections of the first part 101 and the second part 102 are convex. The overall thickness T of the glass cover is 1.2-2.5 mm, and the thickness of the second part is 0.3-0.5 mm. The glass cover includes a light-transmitting area and a light-shielding area located around the light-transmitting area. The light-transmitting area corresponds to the display area (AA area) of the display module. In the first direction, the distance B (i.e., the length EF) from the display area AA of the glass cover to the boundary of the first part is 0.1-0.5 mm. In the first direction, the abnormal light 1011, whose reflection position is closest to the light-emitting surface of the cover, is emitted from inside the AA area and reflected at the uppermost end of the side surface 1002. This reflection position always contains abnormal light under different frame designs. The reflection position of the abnormal light ray 1012 of the light-emitting surface 1001 furthest from the cover plate is located in the lower rounded chamfer area (the connection between the first part 101 and the second part 102). According to the fact that the angle A between the visible reflected light ray reflected in the first area and the light-emitting surface is greater than or equal to 30 degrees, and the formula F = TB * tanA, the length F of the visible area of ​​the abnormal light ray in the first direction is 0.4 to 1.9 mm. Therefore, the length S of the first area in the first direction is greater than or equal to the length F of the visible area of ​​the abnormal light ray in the first direction. For example, S is 0.4 to 1.9 mm.

[0057] It should be noted that, as described above, the length F of the visible area of ​​the abnormal light in the first direction is obtained according to the formula F = TB * tanA. This ignores the rounded corner formed by the rounded corner treatment at the connection between the first part 101 and the second part 102, and calculates the reflection position of the abnormal light ray 1012, which is furthest from the light-emitting surface 1001 of the cover plate, located on the vertical sidewall of the first part 101. To obtain a more accurate value, the rounded corner at the connection between the first part 101 and the second part 102 is taken into account. The reflection position of the abnormal light ray 1012, which is furthest from the light-emitting surface 1001 of the cover plate, is located at the rounded corner. Specifically, referring to Figure 17, the calculation process of the distance h between the reflection point A of the abnormal light ray 1012 (i.e., the ultimate reflected light ray whose reflection point is far from the light-emitting surface of the glass cover plate) and the back surface of the glass cover plate is explained in detail, with the angle A between the visible reflected light ray reflected in the first area and the light-emitting surface being 30 degrees.

[0058] The overall thickness T of the glass cover is 1.2-2.5 mm, the thickness t of the second part is 0.3-0.5 mm, the radius r of the rounded corner at the connection between the first part 101 and the second part 102 is 0.4 mm, the angle between the limiting reflection normal 2000 and the horizontal line is α, the angle between the incident ray and the vertical line (i.e., the angle between the ray emitted from area AA and incident on point A and the direction of the side of the first part 101) ∠DAE is β, the vertical distance AC between the limiting reflection point A (i.e. the reflection point that produces the limiting anomalous ray 1012) and the side of the first part is b, the distance between the limiting reflection point A and the back of the cover (the side opposite to the light-emitting surface) is h (i.e., the length of AD is h), and the vertical distance between the boundary of the AA display area and the side of the first part (i.e., the length of FE) is B (0.1-0.5 mm).

[0059] Referring to Figure 17, OB = OG = r, and OB and OG are perpendicular;

[0060] According to geometric principles, ∠CAD=α+(α+30°)+β=90°(1); In triangle DEA, (DF+FE) / AD=(B+b) / h=tanβ(2);

[0061] In triangle ABC, AC 2 +BC 2 =AB 2 (3);

[0062] From the formula for the length of a chord of a circle, the length of the chord AB corresponding to the central angle ∠BOC is: AB=2rsin(α / 2) (4);

[0063] In triangle AGH, GH 2 +AH 2 =AG 2 (5), where AH = AD - HD = ht, GH = OB = r;

[0064] From the formula for the length of a chord of a circle, the length of the chord AG corresponding to the central angle ∠AOG is: 2rsin[(90-α) / 2] (6);

[0065] According to formulas (1)-(6), by solving, the distance h between the limit reflection point A and the back surface of the glass cover plate can be obtained: 0.6 < h < 0.8. Combining with the overall thickness T (1.2-2.5 mm) of the glass cover plate, the length F of the visible area of the extraordinary light in the first direction can be obtained as T - h, which is 0.4-1.9 mm. Combining FIGS. 9, 11 and 17, according to the length F of the visible area of the extraordinary light in the first direction, the length S of the first area in the first direction can be obtained. Exemplarily, S = F is 0.4-1.9 mm.

[0066] Exemplarily, the first area can completely cover the side surface 1002.

[0067] Referring to FIGS. 4, 10 and 12, the thickness T value of the 2D cover plate is 0.4-0.8 mm. In the second direction, the value of B from the display area to the cover plate boundary (i.e., the distance from the light-transmitting area to the boundary of the cover plate) is 0.5-1.5 mm. In the first direction, the extraordinary light 1021 whose reflection position is closest to the light-emitting surface 1001 of the cover plate is emitted from the inside of the AA area and is reflected at the uppermost end of the side surface 1002. This reflection position always has extraordinary light under different frame designs. The extraordinary light 1022 whose reflection position is farthest from the light-emitting surface 1001 of the cover plate is emitted from the boundary of the ink layer Ink. According to the angle A between the extraordinary light and the display plane (i.e., the light-emitting surface of the glass cover plate) being greater than or equal to 30°, it can be deduced that the distance F from this reflection position to the light-emitting surface of the glass cover plate is T - B×tan30°, that is, the visual reflection range (i.e., the length of the visible area of the extraordinary light in the first direction) F is 0-0.5 mm. The length S of the first area in the first direction is greater than or equal to the length F of the visible area of the extraordinary light in the first direction. Exemplarily, S is 0-0.8 mm, and the maximum range is that the entire side surface is doped.

[0068] It should be noted that the minimum grain micro-sand range (i.e., the range where the microcrystalline glass structure is set) of the flange boss cover plate and the 2D cover plate needs to be determined according to the specific frame, chamfer and thickness design.

[0069] In an exemplary embodiment, the glass cover plate includes a light-incident surface opposite to the light-emitting surface, and the light-incident surface includes a second area located in the light-shielding area, and an ink layer Ink is provided in the second area.

[0070] In an exemplary embodiment, the cross-section of the glass cover plate in the direction perpendicular to the light-emitting surface is rectangular, that is, the glass cover plate is a 2D cover plate; or,

[0071] The glass cover plate has a convex-shaped cross-section in the direction perpendicular to the light-emitting surface, that is, the glass cover plate is a flange boss cover plate. In the direction perpendicular to the light-emitting surface, the glass cover plate includes a first part 101 and a second part 102 stacked together. In the direction parallel to the light-emitting surface, the area of ​​the first part 101 is smaller than the area of ​​the second part 102. The side surface 1002 is located in the first part 101.

[0072] In an exemplary embodiment, the cross-section of the glass cover plate in the direction parallel to the light-emitting surface 1001 is circular, as shown in Figures 13 and 15, or the cross-section of the glass cover plate in the direction parallel to the light-emitting surface 1001 is square, as shown in Figures 14 and 16, but is not limited thereto.

[0073] This disclosure also provides a display module, including a display panel and the aforementioned glass cover, wherein the glass cover is located on the light-emitting side of the display panel.

[0074] This disclosure also provides a method for manufacturing a glass cover plate, which includes the following steps:

[0075] Provide glass substrates;

[0076] Rare earth oxides are sprayed onto a first region on the side of the glass substrate to form a rare earth oxide layer; specifically, a mask is used to cover the part of the surface that does not need to be frosted, and a rare earth oxide slurry with a particle size of 1 to 5 μm is sprayed onto the surface of the cover plate with a spraying thickness of 100 to 150 μm; refer to Figures 8 and 9.

[0077] The rare earth oxide layer is heat-treated to allow rare earth elements to diffuse onto the glass substrate and precipitate silicate grains. Specifically, the temperature is increased at a rate of 10°C / min to 650–750°C and held for 1–3 hours. This prolonged high-temperature holding allows the rare earth oxides on the surface to fully penetrate the cover plate; the actual effective depth of the rare earth oxides is approximately 300 μm, but this is not a limitation.

[0078] In an exemplary embodiment, the method for manufacturing the glass cover further includes:

[0079] The silicate grains are cooled to allow them to grow and extend beyond the surface of the first region, thereby forming a frosted surface on the surface of the first region.

[0080] The glass was cooled at a rate of 5°C / min. The resulting frosted surface was formed during the cooling phase following the high-temperature treatment. With sufficient penetration of rare earth elements, as the temperature gradually decreased, the rare earth elements combined with the silicates in the glass to form rare earth silicate nuclei. These nuclei then grew to form grains with sizes ranging from 0.02 to 50 μm, distributed on the surface of the first region and at a certain depth therein. Compared to the glassy composition, the grains exhibit a more ordered atomic arrangement and higher mechanical strength. Furthermore, the grain distribution within the glassy matrix represents a particle-reinforced structure, significantly enhancing the mechanical strength of the cover plate edges.

[0081] It should be noted that the cooling process specifically includes:

[0082] Cool down at a rate of 5℃ / min to 500-550℃;

[0083] Increase the cooling rate to 5-10℃ / min to cool down until the temperature is reduced to room temperature.

[0084] It should be noted that the cooling process employs a phased cooling method, with different cooling rates used in different stages. This is because a slower cooling rate is required during the nucleation and growth phases of the crystal to allow sufficient time for nucleation and growth. Once the temperature drops below the nucleation and growth temperature range, nucleation and growth hardly occur in the glass, and the cooling rate can be appropriately increased to improve production efficiency.

[0085] Figure 18 shows a photograph of the wearable display module flange boss cover plate with a grained frosted surface, free from abnormal reflections. The reflection phenomenon of the sidewall (i.e., the side surface) under a typical cover plate design disappears, resulting in an aesthetically pleasing appearance for this narrow-bezel wearable smart terminal, free from any interfering abnormal patterns. Furthermore, mechanical reliability results show that, compared to the original cover plate with a smooth glass sidewall (i.e., a glass cover plate with a mirror-like side surface), the glass cover plate in this embodiment features a microcrystalline glass structure in the first region, and the surface of the first region is frosted. This significantly improves the sandpaper drop strength by more than 0.8m.

[0086] The display device can be any product or component with display function, such as an LCD TV, LCD monitor, digital photo frame, mobile phone, or tablet computer. The display device also includes a flexible circuit board, a printed circuit board, and a backplate.

[0087] The following points need to be explained:

[0088] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0089] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present disclosure, i.e., these drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element or there may be intermediate elements.

[0090] (3) Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0091] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A glass cover, wherein, It includes a light-emitting surface and a side surface adjacent to the light-emitting surface. A first region on the side surface is provided with an anti-reflective structure, which includes a microcrystalline glass structure.

2. The glass cover plate according to claim 1, wherein, The microcrystalline glass structure is formed by doping rare earth elements on the side surface to form rare earth silicate grains.

3. The glass cover plate according to claim 2, wherein, The surface of the first region is frosted.

4. The glass cover plate according to claim 3, wherein, The frosted surface is formed by the rare earth silicate grains extending to the outer surface of the first region.

5. The glass cover plate according to claim 1, wherein, The glass cover includes a light-transmitting area and a light-blocking area located around the light-transmitting area. The length S of the first area in a first direction is obtained by the following formula: S≥TB*tanA, where T is the thickness of the glass cover in the first direction, B is the distance from the light-transmitting area to the boundary of the glass cover in the second direction, and A is the angle between the visible reflected light rays reflected in the first area and the light-emitting surface. The first direction is perpendicular to the light-emitting surface, and the second direction is parallel to the light-emitting surface.

6. The glass cover plate according to claim 5, wherein, The angle A between the visible reflected light rays reflected from the first region and the light-emitting surface is greater than or equal to 30 degrees.

7. The glass cover plate according to claim 5, wherein, The glass cover includes a light-incident surface disposed opposite to the light-emitting surface, and the light-incident surface includes a second region located in the light-shielding area, the second region being provided with an ink layer.

8. The glass cover plate according to claim 1, wherein, The glass cover plate has a rectangular cross-section in the direction perpendicular to the light-emitting surface; or... The glass cover plate has a convex shape in the cross section perpendicular to the light-emitting surface. In the direction perpendicular to the light-emitting surface, the glass cover plate includes a first part and a second part stacked together. In the direction parallel to the light-emitting surface, the area of ​​the first part is smaller than the area of ​​the second part, and the side is located in the first part.

9. A display module, wherein, It includes a display panel and a glass cover plate as described in any one of claims 1-8, wherein the glass cover plate is located on the light-emitting side of the display panel.

10. A method for manufacturing a glass cover, wherein, The method for manufacturing a glass cover plate according to any one of claims 1-8 comprises the following steps: Provide glass substrates; Rare earth oxides are sprayed onto a first region on the side of the glass substrate to form a rare earth oxide layer. The rare earth oxide layer is subjected to heat treatment to allow rare earth elements to diffuse onto the glass substrate and precipitate silicate grains.

11. The method for manufacturing a glass cover plate according to claim 10, wherein, Also includes: The silicate grains are cooled to allow them to grow and extend beyond the surface of the first region, thereby forming a frosted surface on the surface of the first region.

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