Glass cover plate, display module and manufacturing method of glass cover plate

Abstract

The invention relates to a glass cover plate which comprises a light-emitting surface and a side surface adjacent to the light-emitting surface, a first area on the side surface is provided with an anti-reflection structure, and the anti-reflection structure comprises a glass ceramic structure. According to the glass cover plate, the anti-reflection structure is arranged in the first area of the side face, abnormal reflection of the side face of the glass cover plate is reduced, the anti-reflection structure is a glass ceramic structure, the edge strength of the cover plate can be effectively improved, and the mechanical reliability of the whole machine is improved. The invention further relates to a display module and a manufacturing method of the glass cover plate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of display product manufacturing, and in particular to a glass cover plate, a display module and a manufacturing method of the glass cover plate. Background Art

[0002] At present, terminal smart products using display modules have become widely popular, and consumers have increasingly demanding requirements for the performance of display modules in all aspects. For example, the requirements for appearance are becoming more exquisite and the requirements for mechanical reliability are becoming more stringent. This places higher requirements on the appearance and performance of display modules and their components. For wearable products with more stringent usage conditions, the above requirements are even more urgent.

[0003] For the aesthetics of the whole product, increasing the screen-to-body ratio is undoubtedly one of the most discussed topics. Reducing the border can effectively increase the screen-to-body ratio. Due to the harsh use environment of wearable products, flange boss design will be used to improve the overall mechanical reliability. Under the narrow bezel design, the distance between the edge of the boss and the display area needs to be reduced. In actual samples, it was found that there would be abnormal reflections at the distance from the side wall of the boss, resulting in a worse user experience. As the design of narrow bezels becomes more and more extreme, this phenomenon may also occur in 2D cover plates. In addition, the edge of the wearable glass cover plate is its weak point, and its mechanical reliability is under continuous review and improvement. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a glass cover plate, a display module and a method for manufacturing the glass cover plate, which solve the problem of abnormal reflection on the side of the glass cover plate.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present disclosure is: a glass cover plate, comprising a light emitting surface and a side surface adjacent to the light emitting surface, wherein a first area on the side surface is provided with an anti-reflection structure, and the anti-reflection structure comprises a microcrystalline glass structure.

[0006] Optionally, the glass-ceramic structure is formed by doping rare earth elements on the side to form rare earth silicate grains.

[0007] Optionally, the surface of the first area is a frosted surface.

[0008] Optionally, the frosted surface is formed by the rare earth silicate grains extending outside the surface of the first region.

[0009] Optionally, the glass cover plate includes a light-transmitting area and a light-shielding area located outside the light-transmitting area, and a length S of the first area in the first direction is obtained by the following formula: S≥TB*tanA, wherein T is the thickness of the glass cover plate in the first direction, B is the distance from the light-transmitting area to the boundary of the glass cover plate in the second direction, A is the angle between the visible reflected light reflected in the first area and the light emitting surface, the first direction is a direction perpendicular to the light emitting surface, and the second direction is a direction parallel to the light emitting surface.

[0010] Optionally, an angle A between the visible reflected light reflected from the first area and the light emitting surface is greater than or equal to 30 degrees.

[0011] Optionally, the glass cover plate includes a light incident surface arranged opposite to the light emitting surface, the light incident surface includes a second area located in the light shielding area, and the second area is provided with an ink layer.

[0012] Optionally, the cross section of the glass cover plate in a direction perpendicular to the light emitting surface is rectangular; or,

[0013] The cross-section of the glass cover plate in a direction perpendicular to the light emitting surface is a convex structure. 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 surface is located in the first part.

[0014] The disclosed embodiment further provides a display module, including a display panel and the above-mentioned glass cover plate, wherein the glass cover plate is located on the light emitting side of the display panel.

[0015] The present disclosure also provides a method for manufacturing a glass cover plate, which is used to manufacture the above-mentioned glass cover plate, and includes the following steps:

[0016] providing a glass substrate;

[0017] Spraying rare earth oxide on a first area of ​​a side surface of the glass substrate to form a rare earth oxide layer;

[0018] The rare earth oxide layer is subjected to a heat treatment so that the rare earth element diffuses on the glass substrate and precipitates silicate grains.

[0019] Optionally, also include:

[0020] The silicate grains are subjected to a temperature reduction treatment so as to make the silicate grains grow and extend to the outside of the surface of the first region so that the surface of the first region forms a frosted surface.

[0021] The beneficial effect of the present disclosure is that by setting an anti-reflection structure in the first area of ​​the side, abnormal reflection on the side of the glass cover plate is reduced, and the anti-reflection structure is a microcrystalline glass structure, which can effectively improve the edge strength of the cover plate and improve the mechanical reliability of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram showing that the side surface of the flange boss cover plate in the related art is in a mirror-like state;

[0023] Figure 2 A schematic diagram showing that the side of a 2D cover plate in the related art is in a mirror-like state;

[0024] Figure 3 A schematic diagram showing a flange boss cover plate in an embodiment of the present disclosure;

[0025] Figure 4 A schematic diagram showing a 2D cover plate in an embodiment of the present disclosure;

[0026] Figure 5 A schematic diagram showing diffuse reflection of light on the glass-ceramic structure in the flange boss cover plate of an embodiment of the present disclosure;

[0027] Figure 6 A schematic diagram showing diffuse reflection of light on the glass-ceramic structure in a 2D cover plate according to an embodiment of the present disclosure;

[0028] Figure 7 A schematic diagram showing spraying rare earth oxide on the side of the flange boss cover plate in an embodiment of the present disclosure;

[0029] Figure 8 A schematic diagram showing spraying rare earth oxide on the side of a 2D cover plate in an embodiment of the present disclosure;

[0030] Fig. 9 A schematic diagram showing the range of the visible area where abnormal light is reflected on the side of the flange boss cover plate in the embodiment of the present disclosure;

[0031] Fig.10 A schematic diagram showing the range of the visible area where abnormal light is reflected on the side of the 2D cover plate in the embodiment of the present disclosure;

[0032] Fig.11 A schematic diagram showing the area range of the first area in the flange boss cover plate according to an embodiment of the present disclosure;

[0033] Fig.12 A schematic diagram showing the area range of the first area in the 2D cover plate of an embodiment of the present disclosure;

[0034] Fig.13 A schematic diagram showing that the flange boss cover is circular;

[0035] Fig.14 A schematic diagram showing that the flange boss cover is square;

[0036] Fig.15 A schematic diagram showing that the 2D cover is circular;

[0037] Fig.16 A schematic diagram showing that the 2D cover is a square;

[0038] Fig.17 A schematic diagram showing the calculation principle of the distance between the limit light reflection point on the light emitting surface away from the glass cover plate in the flange boss cover plate of the embodiment of the present disclosure and the back surface of the glass cover plate. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0040] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The features such as "parallel", "perpendicular", and "same" used in the embodiments of the present disclosure include the features such as "parallel", "perpendicular", and "same" in a strict sense, as well as the cases where "approximately parallel", "approximately perpendicular", "approximately the same", etc. include certain tolerances, taking into account the tolerances associated with the measurement of specific quantities (e.g., the limitations of the measurement system), and represent the acceptable deviation range for a specific value determined by ordinary technicians in the field. For example, "approximately" can mean within one or more standard deviations, or within 3% or 5% of the value.

[0042] Figure 1 The optical path schematic diagram of the flange boss cover plate in the related art is shown. Figure 2 The figure shows a schematic diagram of the optical path of a 2D cover plate in the related art. The vertical side walls of the two cover plates have reached a mirror state after the edge polishing step. The normal light in the AA area of ​​the display panel Panel (the light 100 indicated by the dark blue arrow) will be emitted in all directions upward, and part of the light will irradiate the vertical side wall of the cover plate 10, and the mirror reflection will occur on the mirror side wall to produce abnormal reflected light (the light 200 indicated by the light blue arrow). The virtual image formed by the abnormal reflected light will interfere with the normal display of the wearable smart terminal.

[0043] refer to Figure 3-Figure 6 In order to solve the above problems, the present embodiment provides a glass cover plate, including a light emitting surface 1001 and a side surface 1002 adjacent to the light emitting surface 1001, wherein a first area on the side surface 1002 is provided with an anti-reflection structure, and the anti-reflection structure includes a microcrystalline glass structure 1.

[0044] Glass-ceramics refers to a basic glass of a specific composition with a nucleating agent (or without a nucleating agent), which is subjected to a crystallization heat treatment under a certain temperature regime, and a large number of tiny crystals are uniformly precipitated in the glass to form a dense multiphase complex of microcrystalline phase and glass phase. Glass-ceramics, as a special glass, is superior to ordinary glass in terms of material strength, scratch resistance and other properties. In this embodiment, the above-mentioned characteristics of glass-ceramics are utilized to form a glass-ceramic structure 1 on the side 1002 of the glass cover plate to form an anti-reflection structure. The glass-ceramic structure 1 can be formed on the interior and surface (the surface of the first region) of the glass cover plate to improve the reflection phenomenon of the side 1002 of the glass cover plate, and can effectively improve the edge strength of the cover plate, thereby improving the mechanical reliability of the entire machine.

[0045] Figure 5 A schematic diagram showing a display module using a flange boss cover. Figure 6A schematic diagram of a display module using a 2D cover plate. The display module includes a display panel, the 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. Of the light emitted from the AA area of ​​the display panel, the normal light is emitted from the light-transmitting area of ​​the light-emitting surface 1001, and the abnormal light is incident on the side surface 1002, and undergoes diffuse reflection and transmission through the microcrystalline glass structure 1. Figure 1 and Figure 2 In this embodiment, the microcrystalline glass structure 1 is arranged on the side surface 1002 to improve the problem of side reflection.

[0046] In an exemplary embodiment, the glass-ceramic structure is formed by doping rare earth elements on the side surfaces to form rare earth silicate grains.

[0047] The raw material of the glass cover is aluminosilicate glass, which can be doped with rare earth elements (such as Y, Sc, Dy, Er and Gd, etc.) to form rare earth silicate grains, thereby forming a glass-ceramic structure. Rare earth elements diffuse and nucleate (rare earth silicate) in the glass at a suitable temperature, and then the nuclei grow into grains, which are distributed inside and on the surface of the glass state component, that is, rare earth silicate grains are distributed inside and on the surface of the glass cover.

[0048] In an exemplary embodiment, the surface of the first area is a frosted surface.

[0049] In an exemplary embodiment, the frosted surface is formed by the rare earth silicate grains extending to the outside of the surface of the first region.

[0050] The rare earth silicate grains on the surface of the first region will extend out of the surface during growth, forming a grain frosted surface. The grain frosted surface can effectively reduce the microscopic flatness of the surface of the glass cover plate, making it no longer in a mirror state. This causes the abnormally reflected light to undergo diffuse reflection and transmission, thereby improving the reflection problem on the side of the glass cover plate.

[0051] In an exemplary embodiment, the glass cover plate includes a light-transmitting area and a light-shielding area located outside the light-transmitting area, and the length S of the first area in the first direction is obtained by the following formula: S≥TB*tanA, wherein T is the thickness of the glass cover plate in the first direction, B is the distance from the light-transmitting area to the boundary of the glass cover plate in the second direction, A is the angle between the visible reflected light reflected in the first area and the light emitting surface, the first direction is a direction perpendicular to the light emitting surface, and the second direction is a direction parallel to the light emitting surface.

[0052] In an exemplary embodiment, an angle A between the visible reflected light reflected from the first area and the light emitting surface is greater than or equal to 30 degrees, but the present invention is not limited thereto.

[0053] The setting of the length of the first area in the first direction is described by taking the angle A between the visible reflected light reflected from the first area and the light emitting surface as 30 degrees as an example.

[0054] refer to Figures 9 to 12 , the glass cover plate includes a first part 101 and a second part 102 which are overlapped, and the cross-sections of the first part 101 and the second part 102 are convex-shaped structures. The overall thickness T of the glass cover plate is 1.2 to 2.5 mm, and the thickness of the second part is 0.3 to 0.5 mm. The glass cover plate includes a light-transmitting area and a light-shielding area located outside 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 value from the display area AA of the glass cover plate to the boundary of the first part (i.e., the length of EF) is 0.1 to 0.5 mm. In the first direction, the abnormal light 1011 whose reflection position is closest to the light-emitting surface of the cover plate is emitted from the inside of the AA area and reflected at the uppermost end of the side 1002. There is always abnormal light at this reflection position under different frame designs. The reflection position of the abnormal light 1012 of the light-emitting surface 1001 farthest from the cover plate is located in the lower chamfered area (the connection between the first part 101 and the second part 102). According to the angle A between the visible reflected light reflected in the first area and the light-emitting surface is greater than or equal to 30 degrees, and the formula F=TB*tanA, it can be obtained that the length F of the visible area of ​​the abnormal light in the first direction is 0.4~1.9mm, then 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 in the first direction. Exemplarily, S is 0.4~1.9mm.

[0055] It should be noted that, in the above description, the length F of the visible area of ​​the abnormal light in the first direction is obtained according to the formula F=TB*tanA, which ignores the rounded corner formed by the rounded corner treatment at the connection between the first part 101 and the second part 102, and is calculated based on the reflection position of the abnormal light 1012 farthest from the light-emitting surface 1001 of the cover plate being located on the vertical side wall of the first part 101. In order 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, and the reflection position of the abnormal light 1012 farthest from the light-emitting surface 1001 of the cover plate is located at the rounded corner. For details, refer to Fig.17, taking the angle A between the visible reflected light reflected from the first area and the light emitting surface as 30 degrees, the calculation process of the distance h between the reflection point A of the abnormal light 1012 (i.e., the extreme reflected light whose reflection point is far away from the light emitting surface of the glass cover plate) and the back side of the glass cover plate is specifically described.

[0056] The overall thickness T of the glass cover plate is 1.2-2.5 mm, the thickness t of the second part is 0.3-0.5 mm, the radius r of the fillet at the connection between the first part 101 and the second part 102 is 0.4 mm, the angle between the extreme reflection normal 2000 and the horizontal line is α, the angle between the incident light and the vertical line (that is, the angle between the light emitted from the AA area and incident on the A point and the direction of the side of the first part 101) ∠DAE is β, the vertical distance AC between the extreme reflection point A (that is, the reflection point where the extreme abnormal light 1012 is generated) and the side of the first part is b, the distance between the extreme reflection point A and the back side of the cover plate (the side opposite to the light emitting surface) is h (that is, 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 (that is, the length of FE) is B (0.1-0.5 mm).

[0057] refer to Fig.17 , OB=OG=r, and OB and OG are perpendicular;

[0058] According to the principles of geometry, ∠CAD=α+(α+30°)+β=90°(1); in triangle DEA, (DF+FE) / AD= (B+b) / h=tanβ (2);

[0059] In triangle ABC, AC 2 +BC 2 =AB 2 (3);

[0060] According to the formula for the length of a circle's chord, the length of the chord AB corresponding to the central angle ∠BOC is:

[0061] AB=2rsin(α / 2) (4);

[0062] In triangle AGH, GH 2 +AH 2 =AG 2 (5), where AH = AD-HD = ht, GH = OB = r;

[0063] According to the formula for the length of a circle’s chord, the length of the chord AG corresponding to the central angle ∠AOG is: 2rsin[(90-α) / 2](6);

[0064] According to formulas (1)-(6), by solving, the distance h between the extreme 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 Fig. 9 、 Fig.11 和 Fig.17 , based on the length F of the visible area of the extraordinary light in the first direction, the length S of the first region in the first direction can be obtained. Exemplarily, S = F, which is 0.4 - 1.9 mm.

[0065] Exemplarily, the first region can completely cover the side surface 1002.

[0066] Reference Figure 4 、 Fig.10 和 Fig.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 inside 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 ≥ 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 region 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, where the maximum range is that the entire side surface is doped.

[0067] 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.

[0068] 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 region located in the light - shielding area, and an ink layer Ink is provided in the second region.

[0069] 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,

[0070] The cross-section of the glass cover plate in a direction perpendicular to the light emitting surface is a convex structure, 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 stacked first part 101 and a second part 102. 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, and the side surface 1002 is located in the first part 101.

[0071] In an exemplary embodiment, the cross section of the glass cover plate parallel to the light emitting surface 1001 is circular. Fig.13 and Fig.15 , or the cross section of the glass cover plate parallel to the light emitting surface 1001 is a square, such as Fig.14 and Fig.16 , but it is not limited to this.

[0072] The disclosed embodiment further provides a display module, including a display panel and the above-mentioned glass cover plate, wherein the glass cover plate is located on the light emitting side of the display panel.

[0073] The present disclosure also provides a method for manufacturing a glass cover plate, which is used to manufacture the above-mentioned glass cover plate, and includes the following steps:

[0074] providing a glass substrate;

[0075] Spraying rare earth oxide on the first area of ​​the side of the glass substrate to form a rare earth oxide layer; specifically, using a mask to cover the part of the surface that does not need to be frosted, spraying a rare earth oxide slurry with a particle size of 1 to 5 um on the surface of the cover plate, and the spraying thickness is 100 to 150 um; Figure 8 and Fig. 9 .

[0076] The rare earth oxide layer is heated to diffuse the rare earth elements on the glass substrate and precipitate silicate grains. Specifically, the temperature is raised at a rate of 10°C / min to 650-750°C and kept for 1-3 hours. Long-term high temperature insulation can fully allow the rare earth oxide on the surface to penetrate into the cover plate. The actual effective depth of the rare earth oxide is about 300um, but it is not limited to this.

[0077] In an exemplary embodiment, the method for manufacturing the glass cover plate further includes:

[0078] The silicate grains are subjected to a temperature reduction treatment so as to make the silicate grains grow and extend to the outside of the surface of the first region so that the surface of the first region forms a frosted surface.

[0079] The temperature is lowered at a rate of 5°C / min. The grain frosted surface is formed in the cooling stage after the high temperature treatment. Under the premise of sufficient infiltration of rare earth elements, as the temperature gradually decreases, the rare earth elements combine with the silicates of the glass to form rare earth silicate nuclei. The nuclei gradually grow to form grains with a grain size of 0.02 to 50um, distributed on the surface of the first region and within a certain depth inside. Compared with the glassy components, the grains have orderly atomic arrangement and higher mechanical strength. In addition, the distribution of grains in the glassy matrix is ​​a form of particle reinforcement, which can significantly improve the mechanical strength of the edge of the cover plate.

[0080] It should be noted that the cooling process specifically includes:

[0081] Cool down at a rate of 5°C / min to 500-550°C;

[0082] The cooling rate was increased to 5-10°C / min until the temperature was reduced to room temperature.

[0083] It should be noted that the cooling treatment adopts staged cooling, and different cooling rates are used in different cooling stages, because in the temperature stage of crystal nucleation and growth, a slower cooling rate is required to give it sufficient time for nucleation and growth. When the temperature is reduced to below the temperature stage of nucleation and growth, nucleation and growth will hardly occur in the glass, and the cooling rate can be appropriately accelerated to improve production efficiency.

[0084] The reflection phenomenon of the side wall (i.e., the side surface) under the general cover plate design disappears, and the narrow-frame wearable smart terminal has a beautiful appearance without disturbing abnormal patterns. In addition, the mechanical reliability results show that compared with the original side wall glass smooth surface cover plate (i.e., the glass cover plate with a mirror-like state on the side surface), the glass cover plate in this embodiment is provided with a microcrystalline glass structure in the first area, and the surface of the first area is a frosted surface, and the sandpaper drop strength is increased by more than 0.8m, which is a significant improvement.

[0085] The display device may be any product or component with a display function, such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device further includes a flexible circuit board, a printed circuit board and a backplane.

[0086] There are a few points to note:

[0087] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

[0088] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0089] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0090] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A glass cover plate, characterized in that: It comprises 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 comprises a microcrystalline glass structure.

2. The glass cover plate according to claim 1, characterized in that: The glass-ceramic structure is formed by doping the side with rare earth elements to form rare earth silicate grains.

3. The glass cover plate according to claim 2, characterized in that: The surface of the first area is a frosted surface.

4. The glass cover plate according to claim 3, characterized in that: The frosted surface is formed by the rare earth silicate grains extending outside the surface of the first region.

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

6. The glass cover plate according to claim 5, characterized in that: An included angle A between the visible reflected light reflected from the first area and the light emitting surface is greater than or equal to 30 degrees.

7. The glass cover plate according to claim 5, characterized in that: The glass cover plate includes a light incident surface arranged opposite to the light emitting surface, the light incident surface includes a second area located in the light shielding area, and an ink layer is arranged in the second area.

8. The glass cover plate according to claim 1, characterized in that: The cross section of the glass cover plate in a direction perpendicular to the light emitting surface is rectangular; or, The cross-section of the glass cover plate in a direction perpendicular to the light emitting surface is a convex structure. 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 surface is located in the first part.

9. A display module, characterized in that: It comprises a display panel and the glass cover plate according to any one of claims 1 to 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 plate, characterized in that: The method for manufacturing the glass cover plate according to any one of claims 1 to 8 comprises the following steps: providing a glass substrate; Spraying rare earth oxide on a first area of ​​a side surface of the glass substrate to form a rare earth oxide layer; The rare earth oxide layer is subjected to a heat treatment so that the rare earth element diffuses on the glass substrate and precipitates silicate grains.

11. The method for manufacturing a glass cover plate according to claim 10, characterized in that: Also includes: The silicate grains are subjected to a temperature reduction treatment so as to make the silicate grains grow and extend to the outside of the surface of the first region so that the surface of the first region forms a frosted surface.

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