Ultrathin glass cover plate and folding electronic product

Abstract

The utility model belongs to the technical field of folding screens, and discloses an ultra-thin glass cover plate and a folding electronic product, the ultra-thin glass cover plate comprises ultra-thin glass, a coating structure and a printing ink frame, the ultra-thin glass is provided with an edge area, a first surface and a second surface, and the first surface and the second surface are oppositely arranged; the coating structure comprises an organic matter coating layer, the organic matter coating layer comprises a covering layer and a wrapping layer arranged in the circumferential direction of the covering layer, the covering layer covers the first face, and the wrapping layer wraps the edge area; the ink frame is arranged on the surface of the covering layer back to the second surface; or the ink frame is arranged on the surface of the wrapping layer back to the first surface. As the organic matter coating layer covers the first surface of the ultra-thin glass and wraps the edge area, the upper beveled edge, the lower beveled edge, the upper surface and the side edge of the edge area of the ultra-thin glass can be flat, an ink frame is easier to print, the printing quality and the overall quality of the cover plate are improved, and the ink frame is prevented from being broken and separated; the strength of the whole cover plate, especially the edge area of the cover plate, can be enhanced, and the structural performance of the cover plate can be improved.

Description

Technical Field

[0001] This utility model relates to the field of foldable screen technology, and in particular to an ultra-thin glass cover and a foldable electronic product. Background Technology

[0002] Foldable electronic products, such as foldable smartphones, tend to use ultra-thin glass with higher flatness as the cover material for the foldable screen. In the manufacture of traditional cover plates, black ink is typically printed along the edges to prevent light leakage from the display panel edges. Similarly, when using ultra-thin glass as the cover for a flexible display, a black ink border is also required to prevent light leakage from the panel edges. Figure 1 The diagram shows a black ink border 100′ directly printed on the surface of a glass plate 200′. In this method, due to the thinness of the ultra-thin glass plate 200′ and the presence of beveled edges, as well as factors such as the content and viscosity of the effective components in the ink, the ink border 100′ cannot cover the beveled lower edge of the ultra-thin glass plate 200′. It is prone to breakage and detachment during the process, making it difficult to print successfully.

[0003] To address the aforementioned issues, existing technologies involve setting a self-healing film layer on the upper surface of the ultra-thin glass plate 200′ and an explosion-proof ink layer on the lower surface of the ultra-thin glass plate 200′. A black ink border 100′ is printed on the lower surface of the explosion-proof ink layer. While this achieves the goal of preventing the black ink border 100′ from being directly printed on the surface of the glass plate 200′, it fails to guarantee the flatness of the entire cover plate's side edges, resulting in poor overall quality of the cover plate. Furthermore, it does not effectively enhance the strength of the cover plate, especially the strength of the cover plate's edges, where the strengthening effect is not significant.

[0004] Therefore, there is an urgent need for an ultra-thin glass cover and a foldable electronic product to solve the above-mentioned problems in the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide an ultra-thin glass cover and a foldable electronic product, which can ensure the flatness of the edge of the glass cover, improve the printing quality of the ink border and the overall quality of the cover, strengthen the strength of the cover, and visually hide the ink border well.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, an ultra-thin glass cover is provided, comprising:

[0008] The ultra-thin glass has an edge area and a first and a second surface that are arranged opposite to each other.

[0009] A coating structure includes an organic coating layer, the organic coating layer including a cover layer and a wrapping layer disposed circumferentially along the cover layer, the cover layer covering the first surface, and the wrapping layer wrapping the edge area;

[0010] An ink border is disposed on the surface of the cover layer facing away from the second side; or, the ink border is disposed on the surface of the wrapping layer facing away from the first side.

[0011] As an optional solution for the ultra-thin glass cover provided by this utility model, the coating structure further includes:

[0012] An organic coating layer is applied to the covering layer, and the organic coating layer covers the ink border or is disposed on both sides of the organic coating layer separately from the ink border.

[0013] As an optional solution for the ultra-thin glass cover provided by this utility model, the coating structure further includes:

[0014] A topcoat layer, which is applied over the organic adhesion layer.

[0015] As an optional solution for the ultra-thin glass cover provided by this utility model, the coating structure further includes:

[0016] A topcoat layer is applied over the cover layer and covers the ink border or is disposed separately from the ink border on both sides of the organic coating layer.

[0017] As an optional solution for the ultra-thin glass cover provided by this utility model, the ink border is disposed on the surface of the cover layer facing away from the second side;

[0018] The thickness of the cover layer is D1, and the value of D1 ranges from 3μm to 15μm. The vertical distance between the surface of the coating structure and the surface of the ink border is D2, and the value of D2 ranges from 15μm to 70μm.

[0019] As an optional solution for the ultra-thin glass cover provided by this utility model, the ink border is disposed on the surface of the wrapping layer facing away from the first surface, and the vertical distance between the surface of the coating structure and the first surface is D3, the value of D3 being 20μm to 100μm.

[0020] As an optional solution for the ultra-thin glass cover provided by this utility model, the outer contour of the coating structure is flush with the outer contour of the ink border;

[0021] And / or, the vertical distance between the outer contour of the coating structure and the outer contour of the ultrathin glass, and the vertical distance between the outer contour of the ink border and the outer contour of the ultrathin glass are both 0.05mm to 0.5mm;

[0022] And / or, the coating structure is a colorless and transparent coating;

[0023] And / or, the thickness of the ink border is 3μm to 5μm.

[0024] As an optional solution for the ultra-thin glass cover provided by this utility model, the ultra-thin glass is an ultra-thin glass of uniform thickness, and the pencil hardness of the organic coating layer is greater than 2B.

[0025] Alternatively, the ultra-thin glass is non-uniform thickness ultra-thin glass, which has a groove area, and the organic coating layer covers the groove area, wherein the pencil hardness of the organic coating layer is less than 6B.

[0026] As an optional solution for the ultra-thin glass cover provided by this utility model, one side of the ultra-thin glass is provided with a groove area;

[0027] The ultra-thin glass is provided with a foolproof structure, which is at least partially offset relative to the central axis of the ultra-thin glass.

[0028] As an optional solution for the ultra-thin glass cover provided by this utility model, the foolproof structure includes a first distinguishing mark provided in the corner area of ​​the ultra-thin glass;

[0029] The first distinguishing feature includes a recessed feature set into the side edge of the ultra-thin glass; or,

[0030] The first distinguishing identifier includes a micro-engraved graphic identifier on the surface of the ultra-thin glass; or,

[0031] The ultra-thin glass includes multiple corners, including irregular corners and regular corners of different shapes, and the first distinguishing identifier includes the irregular corners.

[0032] As an optional solution for the ultra-thin glass cover provided by this utility model, the foolproof structure further includes a second distinguishing mark recessed on the outer edge of the groove area;

[0033] The first distinguishing mark is provided in both adjacent corner areas of the ultra-thin glass.

[0034] On the other hand, a foldable electronic product is provided, including a product housing and an ultra-thin glass cover as described above, the ultra-thin glass cover being mounted on the product housing.

[0035] The beneficial effects of this utility model are:

[0036] This invention provides an ultra-thin glass cover and a foldable electronic product incorporating the ultra-thin glass cover. By setting an organic coating layer that covers the first surface of the ultra-thin glass and wraps around the edge area, the upper and lower chamfers, as well as the upper surface and side edges of the ultra-thin glass edge area, are made smooth, making it easier to print ink borders, improving the printing quality of the ink borders and the overall quality of the cover, and preventing the ink borders from cracking or detaching. Simultaneously, because the edge area of ​​the ultra-thin glass is wrapped by the organic coating layer, the strength of the entire cover, especially the edge area, is strengthened, which helps improve the structural performance of the cover and thus improves the quality of the foldable electronic product incorporating the cover. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the existing technology where black ink borders are directly printed onto the surface of a glass plate;

[0039] Figure 2 This is a first view of the ultra-thin glass cover plate provided in a specific embodiment of this utility model;

[0040] Figure 3 This is a second view of the ultra-thin glass cover plate provided in a specific embodiment of this utility model;

[0041] Figure 4 This is a third view of the ultra-thin glass cover provided in a specific embodiment of this utility model;

[0042] Figure 5 This is a fourth view of the ultra-thin glass cover provided in a specific embodiment of this utility model;

[0043] Figure 6 This is a schematic diagram of the first type of foolproof structure for ultra-thin glass provided in a specific embodiment of this utility model;

[0044] Figure 7 This is a schematic diagram of the second anti-foolproof structure provided in a specific embodiment of the present invention for ultra-thin glass;

[0045] Figure 8 This is a schematic diagram of the third type of foolproof structure for ultra-thin glass provided in a specific embodiment of this utility model;

[0046] Figure 9This is a schematic diagram of the fourth type of foolproof structure for ultra-thin glass provided in a specific embodiment of this utility model.

[0047] Figure 1 middle:

[0048] 100', black ink border; 200', glass plate.

[0049] Figures 2 to 9 middle:

[0050] 1. Ultra-thin glass; 2. Coated structure; 3. Ink-coated border;

[0051] 11. Edge area; 12. First surface; 13. Second surface; 14. Bending area; 15. Regular corner;

[0052] 141. Recessed area; 142. Transition area;

[0053] 21. Organic coating layer; 22. Organic adhesion layer; 23. Topcoat layer;

[0054] 211. Covering layer; 212. Encapsulation layer;

[0055] 41. First distinguishing marker; 42. Second distinguishing marker;

[0056] 411. Groove markings; 412. Micro-carved graphic markings; 413. Irregular angles. Detailed Implementation

[0057] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0058] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0061] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0062] In the embodiments of this utility model, the same reference numerals denote the same parts, and for the sake of brevity, detailed descriptions of the same parts are omitted in different embodiments.

[0063] like Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, this embodiment provides an ultra-thin glass cover, including ultra-thin glass 1, coating structure 2, and ink border 3, which can ensure the flatness of the edge of the glass cover, improve the printing quality of the ink border 3 and the overall quality of the cover, strengthen the strength of the cover, and visually hide the ink border 3 well.

[0064] The ultrathin glass 1 has an edge region 11 and a first surface 12 and a second surface 13 disposed opposite to each other. The coating structure 2 includes an organic coating layer 21, which includes a cover layer 211 and a wrapping layer 212 disposed circumferentially along the cover layer 211. The cover layer 211 covers the first surface 12, and the wrapping layer 212 wraps the edge region 11. Specifically, the wrapping layer 212 is flush with the second surface 13 and completely covers the lower chamfer of the edge region 11.

[0065] In some embodiments, such as Figure 2 and Figure 4 As shown, the ink border 3 is disposed on the surface of the cover layer 211 facing away from the second surface 13. Further, when the ink border 3 is disposed on the surface of the cover layer 211 facing away from the second surface 13, at least one other coating layer is applied to the surface of the ink border 3. That is, at this time, the coating structure 2 includes an organic coating layer 21 and one or more other coating layers applied to the surface of the ink border 3.

[0066] In other embodiments, such as Figure 3 and Figure 5 As shown, the ink border 3 is disposed on the surface of the coating layer 212 facing away from the first surface 12. Specifically, after the organic coating layer 21 is coated on the first surface 12, the ultrathin glass 1 is flipped over and the ink border 3 is printed. Part of the ink border 3 is disposed on the second surface 13 of the ultrathin glass 1, and the other part is disposed on the coating layer 212.

[0067] The ultra-thin glass cover provided in this embodiment, by setting an organic coating layer 21, and having the organic coating layer 21 cover the first surface 12 of the ultra-thin glass 1 and wrap around the edge area 11, can make the upper and lower chamfers, as well as the upper surface and side edges of the edge area 11 of the ultra-thin glass 1, flat, making it easier to print the ink border 3, improving the printing quality of the ink border 3 and the overall quality of the cover, and preventing the ink border 3 from cracking or detaching. At the same time, since the edge area 11 of the ultra-thin glass 1 is wrapped by the organic coating layer 21, the strength of the entire cover, especially the edge area 11, can be strengthened, which helps to improve the structural performance of the cover, and thus improves the quality of the foldable electronic product containing the cover.

[0068] Optionally, the organic coating layer 21 is made of 100% UV-curable material.

[0069] Specifically, UV-curable materials include a material matrix, UV-active monomers, and silane coupling agents.

[0070] The main body of the UV-curable material includes at least one polyurethane acrylate and / or at least one epoxy resin.

[0071] UV-active monomers include one or more of the following: isobornyl acrylate (IBOA), isobornyl methacrylate (IBOMA), tetrahydrofuran acrylate (THFA), cyclotrimethylolpropane methyl acetal acrylate (CTFA), β-carboxyethyl acrylate (β-CEA), 4-hydroxybutyl acrylate (4-HBA), 4-acryloylmorpholine (ACMO), hydroxyethyl methacrylate (HEMA), laurate acrylate (LA), butyl acrylate (BA), hydroxyethyl acrylate (2-HEA), and glycidyl acrylate (GMA).

[0072] The silane coupling agent is specifically an ethylene / propylene-based silane coupling agent, such as KH570 (γ-methacryloxypropyltrimethoxysilane), KH571 (3-methacryloxypropyltriethoxysilane), KH573 (γ-methacryloxypropyltris(trimethylsiloxane)silane), etc.

[0073] More specifically, in the aforementioned UV-curable materials, the content of the main material is 30% to 70%, the content of UV-active monomer is 25% to 65%, the content of silane coupling agent is 0.5% to 5%, and the content of photoinitiator is 1% to 5%.

[0074] In some embodiments of this application, the coating structure 2 further includes an organic adhesion layer 22, which is disposed on the surface of the cover layer 211. More specifically, the organic adhesion layer 22 covers the ink border 3 or is disposed separately from the ink border 3 on both sides of the organic coating layer 21. Figure 2 and Figure 4 As shown, the ink border 3 is printed on the surface of the cover layer 211 of the organic coating layer 21. An organic adhesion layer 22 is coated on the surface of the ink border 3 and the cover layer 211. The organic adhesion layer 22 has good adhesion to the ink border 3 and the cover layer 211, which improves the stability of the ink border 3 after printing. In addition, the organic adhesion layer 22 can keep the thickness of the ink area of ​​the printed ink border 3 and the non-ink area of ​​the unprinted ink border 3 flat.

[0075] In this embodiment, the organic adhesion layer 22 is also a UV-curable material with 100% effective components.

[0076] In some embodiments of this application, such as Figure 2 As shown, the coating structure 2 also includes a topcoat layer 23, which is applied over the organic adhesion layer 22. That is, the coating structure 2 at this point includes an organic coating layer 21, an organic adhesion layer 22, and a topcoat layer 23. The topcoat layer 23 has good strength and good waterproof performance, providing good protection for the first surface 12 of the ultra-thin glass 1. For example, the topcoat layer 23 is a hydrophobic, scratch-resistant coating with a water contact angle greater than 105° and a pencil hardness greater than H.

[0077] In some embodiments of this application, such as Figure 4 As shown, the surface of the organic adhesion layer 22 is not covered with a topcoat layer 23. That is, the coating structure 2 at this time includes an organic coating layer 21 and an organic adhesion layer 22.

[0078] In some embodiments of this application, such as Figure 3As shown, the topcoat layer 23 can be directly applied to the cover layer 211, and at this time, the topcoat layer 23 covers the ink border 3 or is disposed separately from the ink border 3 on both sides of the organic coating layer 21. Specifically... Figure 3 In this case, the ink border 3 is set on the surface of the wrapping layer 212 and the second surface 13 of the ultra-thin glass 1. The surface of the organic coating layer 21 is not set with the ink border 3, and the surface is directly covered with the topcoat layer 23, which plays a good role in scratch and water resistance to the surface of the ultra-thin glass 1.

[0079] In some embodiments of this application, such as Figure 5 As shown, the organic coating layer 22 and the topcoat layer 23 may not be provided on the surface of the organic coating layer 21. In this case, the ink border 3 is provided on the surface of the coating layer 212 and the second surface 13 of the ultrathin glass 1, and the coating structure 2 only includes the organic coating layer 21.

[0080] When the ink border 3 is located on the surface of the cover layer 211 of the organic coating layer 21 facing away from the second surface 13, an organic adhesion layer 22 may also be provided on the surface of the cover layer 211, or an organic adhesion layer 22 and a topcoat layer 23 may be provided. See Figure 2 and Figure 4 At this point, the thickness of the cover layer 211 is D1, which is the thickness of the organic coating between the bottom of the ink frame 3 and the ultra-thin glass 1. The value of D1 ranges from 3μm to 15μm. This size ensures that the organic coating at the bottom of the ink frame 3 is not too large, thus affecting the light-blocking effect of the ink frame 3, and also prevents the overall thickness of the coating structure 2 from being too large. The vertical distance between the surface of the coating structure 2 and the surface of the ink frame 3 is D2, and the value of D2 ranges from 15μm to 70μm. This size ensures that the coating structure 2 is not too thick, thus affecting the folding of the cover plate.

[0081] When the ink border 3 is disposed on the surface of the wrapping layer 212 facing away from the first surface 12 and the second surface 13 of the ultrathin glass 1, see Figure 3 The vertical distance between the surface of the coating structure 2 and the first surface 12 is D3. The value of D3 ranges from 20μm to 100μm. This dimension ensures that the coating structure 2 is neither too thin to provide adequate reinforcement nor too thick to affect the folding of the cover plate.

[0082] In this embodiment, the outer contour of the coating structure 2 is flush with the outer contour of the ink border 3 to ensure the flatness of the outer edge of the entire ultra-thin glass cover and improve the quality of the cover. Furthermore, the vertical distance between the outer contour of the coating structure 2 and the outer contour of the ultra-thin glass 1, and the vertical distance between the outer contour of the ink border 3 and the outer contour of the ultra-thin glass 1, are both 0.05mm to 0.5mm. This size limitation ensures that the coating structure 2 and the ink border 3 extend outwards relative to the outer contour of the ultra-thin glass 1 by a certain distance, providing good lateral light leakage coverage and enhancing the strength of the cover. This size is also designed to prevent excessive increases in the overall size of the cover, minimizing material usage while ensuring good cover performance. Specifically, after the coating structure 2 is coated and the ink border 3 is printed, a laser cutter is used to cut the outer edges of the coating structure 2 and the ink border 3. During cutting, the vertical distance between their outer contours and the outer contour of the ultra-thin glass 1 is maintained between 0.05mm and 0.5mm to form the final cover product.

[0083] In this embodiment, the coating structure 2 is a colorless and transparent coating, that is, the organic coating layer 21, the organic adhesion layer 22 and the topcoat layer 23 are all colorless and transparent coatings, so as to avoid affecting the visual effect of the screen.

[0084] In this embodiment, the thickness of the ink border 3 is 3μm to 5μm, which ensures that the ink border 3 can effectively block light leakage from the side while not being too thick, thus making the overall cover plate product too thick.

[0085] like Figure 2 and Figure 3 As shown, the ultra-thin glass 1 is an ultra-thin glass of uniform thickness. At this time, the pencil hardness of the organic coating layer 21 is greater than 2B, which makes the entire cover plate have sufficient hardness and can reduce the occurrence of scratches.

[0086] like Figure 4 and Figure 5 As shown, the ultra-thin glass 1 is a non-uniform thickness ultra-thin glass. The folding area of ​​the non-uniform thickness ultra-thin glass has a groove area 141 to facilitate folding. An organic coating layer 21 covers the groove area 141 and remains flat above the groove area 141 and above the non-grooved areas. The pencil hardness of the organic coating layer 21 is less than 6B to prevent damage to the non-uniform thickness ultra-thin glass during folding due to excessive hardness.

[0087] The following describes in more detail the structures of several cover plates provided in the embodiments of this application through several implementation schemes.

[0088] (1) First implementation plan:

[0089] like Figure 2As shown, an organic coating layer 21 of 3μm to 15μm thick is formed on the surface of the ultra-thin glass 1 of uniform thickness (the thickness of the cover layer 211 is 3μm to 15μm). The organic coating layer 21 is a UV-curable material with a pencil hardness greater than 2B and 100% effective ingredients. The organic coating layer 21 covers the first surface 12 and the edge area 11 of the ultra-thin glass 1 and keeps it flat throughout the cover plate. A black ink border 3 is formed on the surface of the organic coating layer 21, and the thickness of the black ink border 3 is 3μm to 5μm. An organic adhesion layer 22 is formed on the surface of the ink border 3 and the organic coating layer 21. The organic adhesion layer 22 has good adhesion to the ink border 3 and the organic coating layer 21, has a thickness of 10μm to 50μm, a hardness greater than HB, and is made of a UV-curable material with 100% effective ingredients, and keeps the thickness of the ink area and the non-ink area flat. A topcoat layer 23 is formed on the surface of the organic coating layer 22. The topcoat layer 23 is a hydrophobic and scratch-resistant coating with a water contact angle greater than 105°, a pencil hardness greater than H, and a thickness of 3μm to 10μm. The organic coating layer 21, the ink border 3, the organic coating layer 22, and the topcoat layer 23 are cut along the edge of the ultra-thin glass 1 by 0.05mm to 0.5mm to form the final product.

[0090] (2) Second implementation plan:

[0091] like Figure 3 As shown, an organic coating layer 21 of 15μm to 60μm is formed on the surface of the ultrathin glass 1 of uniform thickness (the thickness of the cover layer 211 is 15μm to 60μm). The organic coating layer 21 is a UV-curable material with 100% effective ingredients and a pencil hardness greater than 2B. The organic coating layer 21 covers the first surface 12 and the edge area 11 of the ultrathin glass 1 and remains flat throughout the cover plate. A topcoat layer 23 is formed on the surface of the organic coating layer 21. The topcoat layer 23 is a hydrophobic and scratch-resistant coating with a water contact angle greater than 105°, a pencil hardness greater than H, and a thickness of 3μm to 10μm. A black ink border 3 is formed on the surface of the ultrathin glass 1 opposite to the topcoat layer 23 (i.e., the second surface 13). The thickness of the black ink border 3 is 3μm to 5μm. The organic coating layer 21, the ink border 3, and the topcoat layer 23 are cut outward from the edge of the ultra-thin glass 1 by 0.05mm to 0.5mm using a laser cutting machine to form the final product.

[0092] (3) The third implementation plan:

[0093] like Figure 4As shown, an organic coating layer 21 with a planar area thickness of 5μm to 15μm (the thickness of the cover layer 211 is 5μm to 15μm) is formed on the surface of an ultra-thin glass 1 (which has a groove area 141) with non-uniform thickness. This organic coating layer 21 keeps the groove area 141 and the non-grooved area flat. The organic coating layer 21 is a UV-curable material with a pencil hardness of less than 6B and 100% active ingredients. A black ink border 3 with a thickness of 3μm to 5μm is formed on the surface of the organic coating layer 21. An organic adhesion layer 22 is formed on the surface of the ink border 3 and the organic coating layer 21. The organic adhesion layer 22 has good adhesion to the ink border 3 and the organic coating layer 21, with a thickness of 10μm to 50μm and a hardness of less than 6B. The material of the organic adhesion layer 22 is also a UV-curable material with 100% active ingredients, and it keeps the thickness of the ink area and the non-ink area flat. The organic coating layer 21, the ink border 3, and the organic adhesion layer 22 are cut along the edge of the ultra-thin glass 1 by 0.05mm to 0.5mm using a laser cutting machine to form the final product.

[0094] (4) Fourth implementation plan:

[0095] like Figure 5 As shown, an organic coating layer 21 with a planar area thickness of 15μm to 50μm (the thickness of the cover layer 211 is 15μm to 50μm) is formed on the surface of an ultra-thin glass 1 with non-uniform thickness (its first surface 12 has a groove area 141). This organic coating layer 21 keeps the groove area 141 and the non-grooved area flat. The organic coating layer 21 is a UV-curable material with a pencil hardness of less than 6B and 100% effective ingredients. A black ink border 3 with a thickness of 3μm to 5μm is formed on the second surface 13 of the ultra-thin glass 1. The organic coating layer 21 and the ink border 3 are cut outward from the edge of the ultra-thin glass 1 by 0.05mm to 0.5mm using a laser cutting machine to form the final product.

[0096] The ultra-thin glass cover provided by the above embodiment has good side light-blocking performance because the ink border 3 extends outward to the surface of the organic material coating structure 2. Moreover, it is far from the upper surface of the cover (i.e., the touch surface), making the step of the ink border 3 difficult to see with the naked eye, resulting in better appearance performance. Furthermore, wrapping the edge area 11 of the ultra-thin glass 1 with the organic material coating structure 2 can increase the product strength.

[0097] Non-uniform thickness ultra-thin glass has a thinner bending area, which combines protection and bending performance. However, in the process, it is difficult to distinguish the grooved surface (the side with grooved area 141) and the non-grooved surface (the side without grooved area 141) with the naked eye, which can easily cause problems in processes such as bonding and coating.

[0098] To address the aforementioned issues, the ultra-thin glass cover provided in this application embodiment includes a foolproof structure on the ultra-thin glass 1. This foolproof structure is at least partially offset relative to the central axis of the ultra-thin glass 1, allowing it to be positioned differently when the grooved surface of the ultra-thin glass 1 is facing upwards and when the non-grooved surface is facing upwards. The position of the foolproof structure distinguishes between the grooved surface and the non-grooved surface. For example, the grooved area 141 is located on the first surface 12 of the ultra-thin glass 1.

[0099] Specifically, refer to Figure 6 The bending area 14 of the ultra-thin glass 1 includes a groove area 141 and transition areas 142 located on both sides of the groove area 141. The groove area 141 is typically located in the center. The anti-foolproof structure is relatively... Figure 6 The vertical center axis of the ultra-thin glass 1 is offset, and it is also offset relative to the left and right center axis.

[0100] In this embodiment, the anti-foolproof structure is at least partially disposed in the corner area of ​​the ultrathin glass 1, making it easier to distinguish between the grooved surface and the non-grooved surface during the manufacturing process.

[0101] In this embodiment of the application, the foolproof structure includes a first distinguishing mark 41 located in the corner area of ​​the ultra-thin glass 1. When the grooved surface is facing upward, the first distinguishing mark 41 should be in the corresponding position; otherwise, the upward-facing side is the non-grooved surface.

[0102] As a first implementation method, such as Figure 6 As shown, the first distinguishing mark 41 includes a recessed mark 411 recessed on the side edge of the ultra-thin glass 1. This recessed mark 411 can be located on either the long side or the short side of the ultra-thin glass 1. Specifically, taking the long side of the ultra-thin glass 1 as an example, with the recessed surface facing upwards, when the ultra-thin glass 1 rotates, as long as the long side of the ultra-thin glass 1 is downwards, and the recessed mark 411 appears in the upper left or lower right position, the side facing the operator can only be the recessed surface of the non-uniform thickness ultra-thin glass.

[0103] Understandable, refer to Figure 6 The groove mark 411 can also be placed on the long / short side of the lower left, upper right, or lower right corner to achieve the same technical effect.

[0104] For example, the shape of the groove mark 411 can be one of a variety of shapes such as a circular arc or an elliptical arc.

[0105] For example, the vertical dimension from the deepest recess of the groove mark 411 to the edge of the ultrathin glass 1 is 0.05mm to 0.5mm.

[0106] For example, the angle between the concave tangent of the groove mark 411 and the edge of the ultra-thin glass 1 is 5° to 25°.

[0107] As a second implementation method, such as Figure 7 As shown, the first distinguishing mark 41 includes a micro-engraved graphic mark 412 disposed on the surface of the ultra-thin glass 1. Specifically, the micro-engraved graphic mark 412 can be disposed on the grooved surface or on the non-grooved surface, and can be used to distinguish the grooved surface from the non-grooved surface.

[0108] For example, the size of the micro-engraved graphic mark 412 is 0.05mm to 0.5mm.

[0109] Furthermore, the micro-engraved graphic logo 412 can be in the form of text, patterns, etc., and can be filled after coating or after being bonded to OCA, so as not to affect the visual effect.

[0110] As a third implementation method, such as Figure 8 As shown, the ultra-thin glass 1 includes multiple corners, including irregularly shaped corners 413 and regular corners 15, and the first distinguishing identifier 41 includes the irregularly shaped corners 413. Specifically... Figure 8 With the grooved surface facing upwards, the ultra-thin glass 1 has an irregular angle 413 at its upper left corner, which is different from the other three regular angles 15. When the ultra-thin glass 1 rotates, as long as the long side of the ultra-thin glass 1 is downwards, and the irregular angle 413 appears at the upper left or lower right position, the side facing the operator can only be the grooved surface of the non-uniform thickness ultra-thin glass.

[0111] Understandable, refer to Figure 8 The irregular angle 413 can also be set at the lower left, upper right, or lower right corners to achieve the same technical effect.

[0112] As a fourth implementation, the foolproof structure also includes a second distinguishing mark 42 recessed on the outer edge of the groove area 141, and a first distinguishing mark 41 is provided on each of the two adjacent corner areas of the ultra-thin glass 1. Specifically Figure 9 In the case where the grooved surface faces upwards, the ultra-thin glass 1 has an irregularly shaped corner 413 at both the upper left and lower right corners, distinct from the other two conventional corners 15. Simultaneously, a second distinguishing mark 42 in the form of a groove is recessed at one end of the grooved area 141. When the ultra-thin glass 1 rotates, the irregularly shaped corner 413 remains fixed in the direction of the second distinguishing mark 42 within the grooved area 141; any change indicates that it faces the non-grooved surface.

[0113] The non-uniform thickness ultra-thin glass provided in this application embodiment can quickly distinguish between grooved and non-grooved surfaces by setting a foolproof structure, reducing the possibility of misoperation, and saving time in distinguishing between grooved and non-grooved surfaces.

[0114] This embodiment also provides a foldable electronic product, including a product housing and an ultra-thin glass cover as described above, the ultra-thin glass cover being mounted on the product housing.

[0115] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An ultra-thin glass cover, characterized in that, include: Ultra-thin glass (1) has an edge region (11) and a first surface (12) and a second surface (13) disposed opposite to each other; The coating structure (2) includes an organic coating layer (21), the organic coating layer (21) includes a cover layer (211) and a wrapping layer (212) disposed circumferentially along the cover layer (211), the cover layer (211) covers the first surface (12), and the wrapping layer (212) wraps the edge area (11); An ink border (3) is disposed on the surface of the cover layer (211) facing away from the second surface (13); or, the ink border (3) is disposed on the surface of the wrapping layer (212) facing away from the first surface (12).

2. The ultra-thin glass cover plate according to claim 1, characterized in that, The coating structure (2) further includes: An organic coating layer (22) is applied to the covering layer (211), and the organic coating layer (22) covers the ink border (3) or is disposed on both sides of the organic coating layer (21) separately from the ink border (3).

3. The ultra-thin glass cover plate according to claim 2, characterized in that, The coating structure (2) further includes: A topcoat layer (23) is applied over the organic adhesion layer (22).

4. The ultra-thin glass cover plate according to claim 1, characterized in that, The coating structure (2) further includes: A topcoat layer (23) is applied over the cover layer (211), and the topcoat layer (23) covers the ink border (3) or is disposed on both sides of the organic coating layer (21) separately from the ink border (3).

5. The ultrathin glass cover plate according to any one of claims 2-4, characterized in that, The ink border (3) is disposed on the surface of the cover layer (211) facing away from the second surface (13); The thickness of the cover layer (211) is D1, and the value of D1 ranges from 3μm to 15μm. The vertical distance between the surface of the coating structure (2) and the surface of the ink border (3) is D2, and the value of D2 ranges from 15μm to 70μm.

6. The ultra-thin glass cover plate according to any one of claims 1-4, characterized in that, The ink border (3) is disposed on the surface of the wrapping layer (212) facing away from the first surface (12), and the vertical distance between the surface of the coating structure (2) and the first surface (12) is D3, the value of D3 is 20μm~100μm.

7. The ultrathin glass cover plate according to any one of claims 1-4, characterized in that, The outer contour of the coating structure (2) is flush with the outer contour of the ink border (3); And / or, the vertical distance between the outer contour of the coating structure (2) and the outer contour of the ultrathin glass (1), and the vertical distance between the outer contour of the ink border (3) and the outer contour of the ultrathin glass (1) are both 0.05mm to 0.5mm; And / or, the coating structure (2) is a colorless and transparent coating; And / or, the thickness of the ink border (3) is 3μm to 5μm.

8. The ultrathin glass cover plate according to any one of claims 1-4, characterized in that, The ultra-thin glass (1) is an ultra-thin glass of uniform thickness, and the pencil hardness of the organic coating layer (21) is greater than 2B. Alternatively, the ultrathin glass (1) is a non-uniform thickness ultrathin glass, the non-uniform thickness ultrathin glass is provided with a groove area (141), the organic coating layer (21) covers the groove area (141), and the pencil hardness of the organic coating layer (21) is less than 6B.

9. The ultrathin glass cover plate according to any one of claims 1-4, characterized in that, One side of the ultrathin glass (1) is provided with a groove area (141); The ultrathin glass (1) is provided with a foolproof structure, which is at least partially offset relative to the central axis of the ultrathin glass (1).

10. The ultra-thin glass cover plate according to claim 9, characterized in that, The anti-fouling structure includes a first distinguishing mark (41) located at the corner of the ultra-thin glass (1); The first distinguishing mark (41) includes a recessed mark (411) recessed on the side edge of the ultra-thin glass (1); or, The first distinguishing mark (41) includes a micro-engraved graphic mark (412) disposed on the surface of the ultra-thin glass (1); or, The ultrathin glass (1) includes multiple corners, including irregular corners (413) and regular corners (15) of different shapes, and the first distinguishing mark (41) includes the irregular corners (413).

11. The ultra-thin glass cover plate according to claim 10, characterized in that, The foolproof structure also includes a second distinguishing mark (42) recessed on the outer edge of the groove area (141); The first distinguishing mark (41) is provided in both adjacent corner areas of the ultrathin glass (1).

12. A foldable electronic product, characterized in that, It includes a product housing and an ultra-thin glass cover as described in any one of claims 1-11, wherein the ultra-thin glass cover is mounted on the product housing.

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