Method for manufacturing glass, glass and display glass

Abstract

This application relates to a method for manufacturing glass, glass, and display glass. In this method, a jig with raised ridges is covered on a first adhesive layer. After curing and demolding, a groove is formed, which is filled with a supporting medium. After lamination, the supporting medium is discharged to form a through hole. This method uses a jig to press-form grooves into a malleable adhesive layer, replacing the method of directly grooving brittle glass. This completely avoids the breakage risk during the glass grooving process, improving the overall product yield. The jig can be reused tens of thousands of times, resulting in extremely low amortized cost per piece. Furthermore, multiple grooves can be formed in a single pressing, increasing production efficiency several times compared to traditional mechanical grooving. By designing the cross-sectional shape of the jig's raised ridges, through holes of any shape, such as semi-circular, rectangular, trapezoidal, and irregular, can be obtained, satisfying the production of curved, irregular, and large-area glass, greatly expanding design freedom. Manufacturing costs are reduced, making it suitable for display glass, display walls, and advertising display boards.

Description

Technical Field

[0001] This application relates to the technical field of glass manufacturing, and more particularly to a method for manufacturing glass, glass, and display glass. Background Technology

[0002] With the development of architectural decoration and display technologies, multifunctional composite glass is attracting increasing attention. Existing technologies, such as the glass and manufacturing methods disclosed in patents CN111169118B and CN212097840U, involve pre-placing a filler rod (made of materials such as polytetrafluoroethylene or PET) in the adhesive layer between two glass layers, then bonding the two layers together using a lamination process, and finally removing the filler rod, thereby forming through-holes in the adhesive layer. These through-holes can be used to install components such as light assemblies, enabling the glass to perform both display and light-emitting functions.

[0003] However, in actual production, the aforementioned existing technologies have the following problems: First, the filler rods used are mostly solid materials with a certain degree of elasticity, such as polytetrafluoroethylene, resulting in relatively high material costs. Second, the method of grooving the glass has a long production cycle, high processing costs, and is prone to causing glass breakage. Conversely, if the filler rods are pre-laid directly without grooving the glass, under the high-pressure environment of the lamination process, the filler rods are prone to displacement and material deformation due to the compression of the glass and adhesive layers. This leads to uneven diameters of the final through-holes, resulting in inconsistent and inaccurate arrangement, thus reducing product yield and increasing production costs and process complexity. Furthermore, it cannot produce curved, irregularly shaped, or large-pane glass, significantly limiting the product's application range. Summary of the Invention

[0004] The embodiments of this application provide a method for manufacturing glass, glass, and display glass, so as to improve the glass yield, reduce costs, and enable mass production.

[0005] In a first aspect, this application provides a method for manufacturing glass, the method comprising the following steps:

[0006] A first adhesive layer is provided on the upper surface of the first glass layer;

[0007] A fixture is covered on the first adhesive layer, and the fixture has a protruding ridge on the side facing the first adhesive layer, which is embedded in the first adhesive layer.

[0008] Curing of the first adhesive layer;

[0009] Demold the jig and form a groove on the first adhesive layer, with the two ends of the groove extending through the side of the glass respectively;

[0010] Fill the groove with a supporting medium;

[0011] The second glass layer is placed over the upper surface of the first adhesive layer; the adhesive layers are then fused, cured, and shaped a second time.

[0012] The supporting medium is discharged from the groove, forming through holes at both ends that penetrate the sides of the glass in the extending direction.

[0013] In this embodiment, the traditional method requires directly creating grooves on the glass layer. This process involves high-precision machining, places high demands on equipment, and is time-consuming. Furthermore, stress concentration during grooving can easily lead to glass breakage, with a breakage rate typically between 3% and 5%, severely restricting production efficiency, yield, and cost control. This solution uses a fixture to imprint grooves onto the first adhesive layer, instead of creating grooves on the glass layer, offering the following technical advantages:

[0014] First, in terms of cost, the first adhesive layer (such as PVB, SGP, EVA, or UV adhesive) has better plasticity than glass and can be easily imprinted before curing. A single fixture can be reused tens of thousands of times, resulting in extremely low amortized costs per unit. Compared to performing independent mechanical grooving on each piece of glass, this solution transfers the high-precision molding process to a reusable fixture, significantly reducing the manufacturing cost per unit.

[0015] Secondly, in terms of mass production, jig imprinting is a typical molding process. Multiple grooves can be formed simultaneously on the first adhesive layer in a single imprint, with the spacing, depth, and cross-sectional shape of the grooves precisely determined by the jig's protrusions, ensuring good consistency. This process is ideal for large-scale mass production, with a fast production cycle and the ability to automate assembly line operations. Compared to grooving one groove at a time, this solution can increase production efficiency by several to tens of times. Moreover, in terms of processing efficiency, jig imprinting is simple to operate. The jig is simply placed on the uncured first adhesive layer, pressure and temperature are applied to embed the protrusions, and then the first adhesive layer is cured. The entire imprinting process takes only a few seconds to tens of seconds, far faster than the several minutes to tens of minutes required for mechanical grooving. Furthermore, the grooves are directly formed after demolding, eliminating the need for subsequent burr removal or trimming, further improving processing efficiency. Additionally, in terms of yield, since the grooves are formed on the malleable first adhesive layer rather than the brittle glass layer, the risk of breakage due to stress concentration during glass grooving is completely avoided. The glass layer itself remains intact, and its structural strength is not weakened in any way. Experimental data shows that this solution can reduce the glass breakage rate caused by groove forming from 3%-5% to near zero, and the overall product yield can be increased to over 99%.

[0016] Finally, the protruding ridges of the fixture in this embodiment can be designed with any cross-sectional shape, such as semicircular, rectangular, trapezoidal, V-shaped, U-shaped, triangular, elliptical, or irregular cross-sections. By changing the cross-sectional shape of the protruding ridges of the fixture, grooves of corresponding shapes can be formed on the first adhesive layer, thereby obtaining through holes of corresponding cross-sectional shapes. Traditional mechanical grooving methods are difficult to process grooves with irregular cross-sections (especially shapes that are narrow inside and wide outside or have chamfers), while this solution makes it easy to form using a fixture, greatly expanding the design freedom of the through hole cross-sectional shape and providing the possibility for subsequent installation of light-emitting components of different shapes or the realization of special optical effects.

[0017] In some embodiments, the fixture has multiple protruding ridges on the side facing the first adhesive layer, extending along the length of the glass and spaced apart along the width of the glass. The grooves extend along the length of the glass, and multiple grooves are formed on the upper surface of the first adhesive layer, spaced apart along the width of the glass. In this embodiment, by setting multiple parallel, spaced-apart protruding ridges, multiple grooves can be formed in one pressing, creating a regular array of through-holes inside the glass. The spacing between the ridges can be precisely set according to actual needs, and the density of the through-holes can be controlled by adjusting the spacing. The spaced-apart arrangement avoids excessively dense grooves that could lead to a decrease in the local strength of the first adhesive layer, ensuring the overall structural stability of the glass. This regular array structure provides a good channel layout for the subsequent installation of lamps, facilitating a uniform display effect.

[0018] In some embodiments, the ridge extends along a straight curve and from one side of the glass to the other. The curved extension of the ridge makes the formed through-hole curved (e.g., arc-shaped, S-shaped, wavy). Curved through-holes can be used to install flexible light groups or optical fibers, realize irregular light-emitting paths or increase the light scattering angle, and meet special optical and decorative needs, while traditional mechanical grooving cannot process curved glass grooves.

[0019] In some embodiments, the support medium is a soluble material or a filler rod. In this embodiment, the support medium is used to maintain the shape of the groove during the lamination process, preventing it from being squeezed and deformed during the coating and pressing of the second adhesive layer. When the support medium is a soluble material, it can be subsequently removed by melting, completely eliminating the risk of breakage that may result from physical removal. When the support medium is a filler rod (such as a PTFE rod, silicone rod, etc.), it can be removed by physical removal, which is suitable for applications where the through-hole precision requirements are not particularly high. Both methods can be flexibly selected according to actual needs, expanding the applicability of the process.

[0020] In some embodiments, the step of filling the groove with soluble material or a filler rod includes: filling the sleeve with the soluble material or filler rod; and placing the sleeve containing the soluble material or filler rod in the groove. In this embodiment, by setting a sleeve to isolate the soluble material or filler rod from the adhesive layer, the adhesive is prevented from seeping into the soluble material and causing dissolution difficulties. The sleeve can be a flexible tube or a rigid tube. Flexible tubes have good flexibility and can conform to the direction and shape of the groove. Even if there are minor processing errors in the groove, the flexible tube can be inserted smoothly. The soluble material or filler rod is encapsulated in the sleeve. After melting and discharging or being pulled out, the sleeve can be removed. The inner wall of the through hole is the smooth surface left by the outer wall of the sleeve, which does not require additional grinding. The removed sleeve can be cleaned and reused, further reducing material costs. Firstly, this method does not use solid filler rods to directly fill the support, but uses sleeve filling. Because there are more material options, the cost of the filling material is reduced by more than 50%.

[0021] In some embodiments, after the step of filling the groove with a support medium, the step of:

[0022] A second adhesive layer is coated on the upper surface of the first adhesive layer;

[0023] The second glass layer is placed over the upper surface of the second adhesive layer and bonded to the first adhesive layer via the second adhesive layer.

[0024] In this embodiment, the addition of a second adhesive layer can enhance the bonding strength between the first adhesive layer and the second glass layer. In particular, when the thickness of the first adhesive layer is reduced locally due to the imprinted groove, the second adhesive layer can provide additional bonding force and fill micro gaps, ensuring the overall structural reliability of the laminated glass.

[0025] In some embodiments, the method further includes the step of:

[0026] A third adhesive layer is provided on the lower surface of the first glass layer.

[0027] A fixture is covered on the third adhesive layer, and the fixture has a protruding ridge on one side facing the third adhesive layer, the protruding ridge being embedded in the third adhesive layer.

[0028] In this embodiment, an adhesive layer is also provided on the lower surface of the glass and a groove is imprinted, which can form a two-layer through-hole structure in the same piece of glass, for installing light groups with different functions or colors, realizing dual-layer display or zoned control, enriching the display effect without increasing the number of glass layers.

[0029] In some embodiments, the third adhesive layer is cured at the same time as the first adhesive layer is cured;

[0030] After curing, the jig on the third adhesive layer is demolded, and grooves are formed on the third adhesive layer, with the two ends of the grooves extending through the side of the glass.

[0031] In this embodiment, both adhesive layers are cured simultaneously, eliminating the need for step-by-step processing, simplifying the process, shortening the production cycle, and ensuring that the molding conditions of the two grooves are consistent and the dimensional accuracy is controllable.

[0032] In some embodiments, the grooves on the first adhesive layer and the grooves on the third adhesive layer are aligned or offset in the thickness direction of the glass. In this embodiment, the offset arrangement avoids the vertical overlap of the upper and lower through holes, preventing the concentrated through holes from weakening the strength of the glass cross-section. Simultaneously, the offset channels provide independent space for the upper and lower lamp groups, avoiding optical interference and improving display clarity. Furthermore, it can increase the density between multiple through holes, meeting the requirements for a high-density lamp hole layout.

[0033] Secondly, embodiments of this application provide a glass, which is manufactured by the glass manufacturing method described in any of the above embodiments.

[0034] Effect derivation: Since the above manufacturing method can avoid problems such as through-hole deformation and filler breakage, and the process steps are simplified and the material cost is low, the glass manufactured by this method has excellent qualities such as uniform through-hole size, smooth inner wall and no residue. The product yield is extremely high and the manufacturing cost is greatly reduced, which provides a good foundation for subsequent processing into display glass and other derivative products.

[0035] Thirdly, this application provides a display glass, including a lamp assembly and the glass as described above, with the lamp assembly passing through a through-hole. In this embodiment, because the through-hole inside the glass has a uniform size and smooth inner wall, the lamp assembly experiences low resistance and is less prone to jamming during installation, resulting in high installation efficiency. Simultaneously, the through-hole provides physical isolation and protection for the lamp assembly, shielding it from external wind and rain. Since the glass itself is manufactured using a low-cost, high-yield method, the overall manufacturing cost of this display glass is effectively controlled, making it suitable for mass production and widespread application.

[0036] Fourthly, this application provides a display wall, including the display glass as described above.

[0037] Fifthly, this application provides an advertising display board, including the display glass or the display wall as described above. In this embodiment, the display wall and the advertising display board can be the aforementioned display glass. Because the through-hole molding quality of the display glass is stable and reliable, and the light-emitting components are easy to install and replace, the overall manufacturing and maintenance costs of the wall and the advertising board are reduced. At the same time, due to the high manufacturing yield of the display glass and the low scrap rate during large-scale production, the unit cost is further reduced, giving it good market competitiveness. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0039] Figure 1 This is a schematic diagram of the structure of a glass provided in an embodiment of this application;

[0040] Figure 2 A glass manufacturing process method provided in this application embodiment;

[0041] Figure 3 for Figure 2 The process method of the sub-step of step S150 in the process;

[0042] Figure 4 for Figure 2 A schematic diagram of the structure of the glass manufactured by the glass manufacturing process in the embodiment;

[0043] Figure 5 for Figure 2 A schematic diagram of the fixture in the embodiment. Attached image description:

[0045] 1000, Glass;

[0046] 100. First glass layer;

[0047] 200. Second glass layer;

[0048] 300, Adhesive layer; 310, First adhesive layer; 320, Second adhesive layer;

[0049] 400, fixture; 410, convex edge;

[0050] 500, Supporting medium;

[0051] 600, through hole. Implementation

[0052] The following section will first explain some of the terms used in the embodiments of this application.

[0053] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0054] In this specification, the terms "vertical" and "parallel" are explained.

[0055] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0056] Parallelism: Parallelism as defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, allowing for situations where there is no absolute parallelism due to factors such as assembly tolerances, design tolerances, and structural flatness. However, this application also defines such situations as parallelism.

[0057] Figure 1 This is a schematic diagram of the structure of a glass 1000 provided in an embodiment of this application.

[0058] Reference Figure 1 The glass 1000 includes a first glass layer 100 and a second glass layer 200 stacked together, and an adhesive layer 300 bonded between the first glass layer 100 and the second glass layer 200. Multiple through holes 600 are formed within the glass 1000, with each end of the through hole 600 penetrating the side surface of the glass 1000 in its extending direction. In this embodiment, the glass 1000 exhibits excellent qualities such as uniform through hole size, smooth inner walls, and no residue, significantly improving product yield and reducing manufacturing costs, thus providing a solid foundation for subsequent processing into display glass and other derivative products.

[0059] In order to produce the glass 1000 in this embodiment, the present application also provides the following glass 1000 manufacturing methods in several embodiments for producing the glass 1000.

[0060] Reference Figure 1 The glass 1000 includes a first glass layer 100 and a second glass layer 200 stacked together, and an adhesive layer 300 bonded between the first glass layer 100 and the second glass layer 200. The glass 1000 has multiple through holes 600, each penetrating a side surface of the glass 1000 at both ends in its extending direction. The cross-sectional shape of the through holes 600 can be semi-circular, rectangular, trapezoidal, V-shaped, U-shaped, triangular, elliptical, or any irregular shape, and can also extend along a curve to form an arc-shaped, S-shaped, or wavy channel (corresponding to the curved ridge scheme in the claims). Furthermore, the glass 1000 of this application may also include a double-layer or multi-layer through-hole 600 structure: for example, through-holes 600 are formed in the upper and lower adhesive layers of the first glass layer 100, and the upper and lower through-holes 600 are staggered in the thickness direction of the glass 1000 (corresponding to the feature of a third adhesive layer and staggered grooves on the lower surface of the first glass layer in the claims), thereby increasing the number of functional channels without weakening the strength of the glass 1000, and realizing dual-layer display or zoned control. The glass 1000 in this embodiment has excellent qualities such as uniform through-hole 600 size, smooth inner wall, and no residue, which greatly improves the product yield and significantly reduces the manufacturing cost, providing a good foundation for subsequent processing into display glass and other derivative products.

[0061] In order to produce this Figure 1 In addition to the glass 1000 in the embodiments, this application also provides the following method for manufacturing the glass 1000.

[0062] Figure 2 A manufacturing process method for glass 1000 provided in this application embodiment; Figure 3 for Figure 2 The process method of the sub-step of step S150 in the process; Figure 4 for Figure 2 A schematic diagram of the structure of the glass 1000 manufactured by the glass 1000 manufacturing process in the embodiment. Figure 5 for Figure 2 A schematic diagram of the fixture in the embodiment.

[0063] Reference Figures 2-5 The manufacturing method of glass 1000 includes the following steps:

[0064] Step S110: Coat the upper surface of the first glass layer 100 with the first adhesive layer 310.

[0065] The first adhesive layer 310 is used for subsequent embossing of grooves and serves as part of the adhesive layer 300 between the first glass layer 100 and the second glass layer 200. The first adhesive layer 310 can be a PVB (polyvinyl butyral) film. PVB film has excellent adhesion and optical transparency. In use, the PVB film can be cut to a shape matching the size of the first glass layer 100 and then laid on the upper surface of the first glass layer 100. The film thickness is typically 0.3mm-2mm, and can be selected according to the required groove depth. Alternatively, in some other embodiments, the first adhesive layer 310 can also be an SGP (ionomer polypropylene) film. SGP film has higher strength and better weather resistance, making it suitable for applications requiring high strength. The application method of SGP film is similar to that of PVB film. Furthermore, the first adhesive layer 310 can be an EVA (ethylene vinyl acetate copolymer) film. EVA film has good flexibility and low-temperature performance, making it suitable for applications requiring high flexibility. The first adhesive layer 310 can also be a UV adhesive (ultraviolet light curing adhesive). UV adhesives cure rapidly under ultraviolet light and are suitable for applications requiring rapid curing. In use, the UV adhesive is evenly applied to the upper surface of the first glass layer 100, and the coating thickness can be controlled according to the required groove depth. Alternatively, the first adhesive layer 310 can also be an epoxy resin adhesive. Epoxy resin adhesives have excellent bonding strength and chemical resistance, making them suitable for applications requiring high durability.

[0066] In addition, the first adhesive layer 310 can be coated by methods such as blade coating, roller coating, spray coating, or screen printing. Blade coating is suitable for colloids with high viscosity and can control the coating thickness uniformly; roller coating is suitable for large-area continuous production and is highly efficient; spray coating is suitable for surfaces with complex shapes; screen printing is suitable for situations where precise control of the coating area is required.

[0067] Step S120: Cover the first adhesive layer 310 with a fixture 400. The fixture 400 has a protruding ridge 410 on the side facing the first adhesive layer 310, and the protruding ridge 410 is embedded in the first adhesive layer 310.

[0068] In step S120, the jig 400 is the key mold for forming the groove. The cross-sectional shape of the protrusion 410 determines the cross-sectional shape of the final through hole 600. The protrusion 410 can be semi-circular, rectangular, trapezoidal, V-shaped, U-shaped, triangular, elliptical, or any irregular cross-section to adapt to different application requirements.

[0069] In one embodiment, the ridge 410 extends along a curve from one side of the glass 1000 to the other side. For example, the ridge 410 can be arc-shaped, S-shaped, or wavy. Correspondingly, the groove formed after demolding and the final through-hole 600 also exhibit the same curved shape. This curved through-hole 600 can be used to install flexible light-emitting strips to achieve irregular light-emitting effects or to increase the scattering path of light.

[0070] In one embodiment, the fixture 400 is flat, with multiple protruding ribs 410 integrally formed on its lower surface. The protruding ribs 410 extend along the length of the glass 1000, and the multiple protruding ribs 410 are spaced apart along the width of the glass 1000. The spacing between the protruding ribs 410 can be set according to actual needs. The height of the protruding ribs 410 determines the depth of the groove, which can be set according to the diameter of the required through hole 600.

[0071] In one embodiment, the jig 400 can be made of metal, such as stainless steel, aluminum alloy, or copper alloy. Metal jigs have high strength and good wear resistance, making them suitable for mass production, with a service life of tens of thousands of cycles or more. Metal jigs can be manufactured by CNC machining, precision casting, or electroforming, achieving high-precision convex ridge shapes. In other embodiments, the jig 400 can be made of silicone. Silicone jigs have a certain degree of elasticity, allowing them to better adapt to the uneven surface of the first adhesive layer 310 during molding, and they are easy to demold without damaging the adhesive layer. Silicone jigs are suitable for applications requiring high surface quality, but their service life is relatively short. Alternatively, the jig can also be made of epoxy resin, polyurethane, or polytetrafluoroethylene. The jig can be manufactured by injection molding or 3D printing, which is low-cost and suitable for small-batch production or pilot production stages.

[0072] In one embodiment, pressure is applied to bring the jig 400 into contact with the first glass layer 100, and the protrusion 410 is pressed into the first adhesive layer 310. The amount of pressure depends on the viscosity and thickness of the first adhesive layer 310. The pressing depth should ensure that the top of the protrusion 410 is close to but does not contact the upper surface of the first glass layer 100 to avoid damaging the glass 1000.

[0073] Step S130: Cure the first adhesive layer 310.

[0074] In one embodiment, firstly, the first glass layer 100 coated with the first adhesive layer 310 is stacked with the fixture 400. The stacked assembly is then placed entirely into a high-temperature resistant vacuum bag, preferably made of polyimide film or high-temperature resistant silicone cloth, which has high temperature resistance. After sealing the edges of the vacuum bag, a vacuum pump is connected to evacuate the vacuum until all the air inside the bag is expelled, ensuring that the first glass layer 100 and the first adhesive layer 310 are tightly bonded to the fixture protrusions 410, eliminating interface bubbles.

[0075] After vacuuming, the sealed vacuum bag is placed in an autoclave for further vacuuming, heating, and pressure setting. During this process, the first adhesive layer 310 (such as PVB or SGP film) softens and flows due to heat. Under the combined action of vacuum negative pressure and external positive pressure, the shape of the ridge 410 is precisely replicated onto the adhesive layer surface. The uniform temperature and pressure inside the autoclave ensure the dimensional accuracy and shape consistency of the grooves.

[0076] In one embodiment, when the first adhesive layer 310 is a PVB, SGP, or EVA film, the film is softened and flowed by heating to fill the gaps around the protrusions 410, and then cooled and cured. Heating can be performed simultaneously during the imprinting process, i.e., heating and curing are carried out while the jig 400 is in the imprinting state, to prevent the adhesive layer from springing back before curing.

[0077] In another embodiment, when the first adhesive layer 310 is a UV adhesive, it can be cured by UV light irradiation.

[0078] In another embodiment, when the first adhesive layer 310 is an epoxy resin adhesive, it is cured by heating. The heating temperature is controlled at 60-100°C, and the curing time is controlled at 1-4 hours.

[0079] Step S140: Demold the jig 400 and form a groove on the first adhesive layer 310, with the two ends of the groove extending through the side of the glass 1000 respectively.

[0080] In one embodiment, after molding is completed, the component is removed from the autoclave and allowed to cool naturally to room temperature before the vacuum bag is removed. At this point, there is no adhesion between the jig 400 and the first adhesive layer 310. Gently lifting the jig 400 vertically upwards completes demolding, forming a groove on the first adhesive layer 310 with both ends penetrating the sides of the glass 1000. If the surface of the jig 400 is pre-coated with a polytetrafluoroethylene coating or a silicone release agent, demolding is smoother and can effectively avoid damage to the groove structure. This process integrates imprinting and curing, ensuring the molding accuracy of the groove while achieving efficient mass production.

[0081] In one embodiment, for a flat fixture, the fixture 400 can be separated from the first adhesive layer 310 by pulling it vertically upwards. To prevent the adhesive layer from adhering to the fixture 400, a release agent, such as silicone oil, paraffin wax, or polytetrafluoroethylene spray, can be applied to the surface of the first adhesive layer 310 or the surface of the protrusions 410 of the fixture 400 before imprinting.

[0082] In another embodiment, for fixtures made of polytetrafluoroethylene or silicone, since silicone itself is non-stick, demolding is relatively easy and can be directly peeled off.

[0083] After demolding, a groove complementary to the shape of the ridge 410 is formed on the first adhesive layer 310. The cross-sectional shape of the groove is the same as that of the ridge 410, and the groove extends along the length of the glass 1000. Both ends of the groove penetrate the side surface of the first adhesive layer 310, and thus penetrate the entire side surface of the glass 1000. If the fixture 400 has multiple ridges 410, then multiple parallel and spaced grooves are formed on the first adhesive layer 310.

[0084] Step S150: Fill the groove with support medium 500.

[0085] The support medium 500 is used to maintain the shape of the groove during subsequent lamination processes, preventing it from being squeezed and deformed during the application of the second adhesive layer 320 and pressing. Various alternative embodiments can be implemented for the specific selection of the support medium 500.

[0086] In one embodiment, the support medium 500 is a soluble material. A soluble material refers to a material that can dissolve in a specific solvent (such as water, acid, alkali, etc.), such as clay, soluble salts (sodium chloride, calcium chloride, etc.), or soluble organic compounds (PVA, PEG, gelatin, etc.). The filling method of the soluble material is the same as in the aforementioned embodiments, and can be extrusion, injection, or compaction.

[0087] In another embodiment, the support medium 500 is a filler rod. The filler rod can be a solid rod-shaped material, such as a polytetrafluoroethylene rod, a silicone rod, a metal rod, or a glass rod. The outer diameter of the filler rod matches the width and height of the groove. The filler rod is placed inside the groove, with both ends extending beyond the sides of the glass 1000. The material of the filler rod should have sufficient strength to prevent deformation during the pressing process and to prevent adhesion to the adhesive layer. The filler rod can be removed later by physical extraction.

[0088] In one embodiment, the groove can be filled directly with soluble materials. For example, clay can be prepared into a plastic state and filled into the groove using a mud extruder; or soluble salt powder can be compacted and filled into the groove.

[0089] In another embodiment, filling can be done using a sleeve. Specifically, the soluble material or solid rod is first filled into the sleeve, and then the sleeve containing the soluble material or solid rod is placed in the groove. This embodiment can be accomplished through the following two steps:

[0090] Step S151: Fill the sleeve with soluble material or solid rod.

[0091] The tubing can be a flexible or rigid tube. Flexible tubes can be made of PVC, silicone, rubber, polyurethane, or PTFE, while rigid tubes can be made of glass, metal, or rigid plastic. Preferably, it is a flexible tube with an outer diameter matching the diameter of the required through-hole (600mm) and an inner diameter matching the size of the filler. The flexible tube is flexible and easy to handle.

[0092] In another embodiment, the solid rod can be made of metal, plastic, glass, or other materials, and is placed inside the sleeve by means of threading or heat shrinking.

[0093] In another embodiment, when the soluble material is clay, the clay is prepared into a slurry and injected into the casing by grouting. After filling, the slurry is allowed to stand or centrifuged to compact it, and then allowed to solidify.

[0094] In another embodiment, when the soluble material is a soluble salt (such as sodium chloride), the salt is melted and injected into the sleeve, and then allowed to cool and solidify naturally; or salt powder is loaded into the sleeve and compacted by vibration to make it tightly filled.

[0095] In another embodiment, when the soluble material is a soluble organic compound (such as PVA), the PVA is heated to a molten state and injected into the sleeve, or an aqueous solution of PVA is prepared, injected, and then dried to remove moisture.

[0096] Step S152: Place the sleeve containing the soluble material or filling rod into the groove.

[0097] Place the filled sleeve into the groove, ensuring the outer wall of the sleeve fits snugly against the inner wall of the groove. If the sleeve is a flexible tube, its flexibility allows it to accommodate minor machining errors in the groove, ensuring smooth insertion. Both ends of the sleeve should extend beyond the groove for subsequent operations. Furthermore, the ends of the sleeve can be clamped and straightened using a fixture to limit its position. The fixture can be a limiting jig, spring clamp, pneumatic gripper, or mechanical clamping device to ensure the sleeve remains straight in subsequent processes.

[0098] In another embodiment, for a support medium of the filler rod type, the filler rod can be directly placed into the groove. The length of the filler rod should be greater than the length of the groove, with both ends extending out of the groove for easy removal later.

[0099] Step S160: Coat the upper surface of the first adhesive layer 310 with the second adhesive layer 320. It should be noted that step S160 is optional; step S160 can be performed or not.

[0100] The second adhesive layer 320 is used to bond the second glass layer 200 to the first adhesive layer 310. The material of the second adhesive layer 320 can be the same as or different from that of the first adhesive layer 310. For example, the first adhesive layer 310 can be a PVB film, and the second adhesive layer 320 can be a UV adhesive; or both can be the same material.

[0101] The second adhesive layer 320 is applied in a similar manner to the first adhesive layer 310, such as by laying film, scraping, rolling, or spraying. During application, the second adhesive layer 320 should completely cover the groove and the supporting medium 500 filling it.

[0102] Step S170: Cover the upper surface of the second adhesive layer 320 with the second glass layer 200, and bond it to the first adhesive layer 310 through the second adhesive layer 320.

[0103] This step is the same as the lamination process in the previous embodiment. After covering with the second glass layer 200, the second adhesive layer 320 is cured by the lamination process, firmly bonding the first adhesive layer 310 and the second glass layer 200 together.

[0104] Step S180: The support medium 500 is discharged from the groove, and through holes 600 extending through both ends of the glass 1000 in the extending direction are formed.

[0105] Understandably, the discharge method of the support medium 500 depends on its type.

[0106] In one embodiment, when the support medium 500 is a soluble material, it is discharged by dissolution. For example, if it is a water-soluble salt, the glass 1000 can be immersed in water or water can be injected into both ends of the through hole 600 to dissolve and discharge the salt; if it is clay, water or dilute acid can be injected to soften the clay before rinsing and discharging; if it is a soluble organic substance, it can be dissolved and discharged by immersion in hot water or an organic solvent. After dissolution and discharge, if it is a sleeve, the sleeve can be removed as well.

[0107] In another embodiment, when the support medium 500 is a filler rod, it is removed by physical extraction. Since there may be adhesion between the filler rod and the adhesive layer, a lubricant (such as water, silicone oil, or soapy water) can be injected into the through-hole 600 before extraction to reduce friction. During extraction, one end of the filler rod is clamped and slowly pulled out. If the filler rod is in a sleeve, the sleeve can be removed together.

[0108] In this step, by discharging the support medium 500, the space in the groove is released, forming a through hole 600 penetrating the side of the glass 1000. The cross-sectional shape of the through hole 600 is consistent with the cross-sectional shape of the groove, that is, consistent with the cross-sectional shape of the jig protrusion 410. Therefore, by designing the cross-sectional shape of the jig protrusion 410, through holes 600 of any shape can be obtained, such as semi-circular, rectangular, trapezoidal, V-shaped, U-shaped, triangular, elliptical, or irregular cross-sections.

[0109] The above embodiment, which forms grooves by pressing a fixture onto the first adhesive layer instead of directly slotting the brittle glass 1000, has significant advantages, specifically in the following aspects:

[0110] In terms of cost and efficiency, the jig can be reused tens of thousands of times, and the amortization cost per piece is extremely low; multiple grooves can be formed in one stamping, the production cycle is fast, and the efficiency is several to dozens of times higher than that of mechanical grooving.

[0111] In terms of yield and structural strength, the groove is formed in a plastic adhesive layer, which completely avoids the stress concentration and breakage risk caused by the grooving of the glass 1000. The breakage rate is reduced to near zero, the overall yield can reach more than 99%, and the glass 1000 layer remains intact and its strength is undamaged.

[0112] In terms of design flexibility, the jig protrusions can be designed into any cross-sectional shape, easily realizing through holes of 600 such as semi-circular, trapezoidal, and irregular shapes, providing great design freedom for the installation of light-emitting components and special optical effects.

[0113] In summary, the glass 1000 produced by this method has uniform through-hole size 600, smooth inner wall, no residue, controllable diameter deviation, and significantly reduced manufacturing cost, providing a high-quality foundation for display glass and other derivative products.

[0114] Based on the above embodiments, this application also provides a manufacturing method for forming through holes 600 on both sides of the glass 1000. Specifically, it includes the following steps:

[0115] A third adhesive layer is provided on the lower surface of the first glass layer 100. The material of the third adhesive layer can be the same as that of the first adhesive layer 310, such as PVB, SGP, EVA, UV adhesive or epoxy resin adhesive.

[0116] Another fixture is placed on the third adhesive layer. This fixture has a raised ridge on the side facing the third adhesive layer, and the raised ridge is embedded in the third adhesive layer. The shape and arrangement of the raised ridge of this fixture can be the same as or different from the fixture used on the first adhesive layer 310.

[0117] The first adhesive layer 310 and the third adhesive layer are cured simultaneously. The stacked assembly can be placed in an autoclave and heated and pressurized to simultaneously shape the two adhesive layers.

[0118] The two jigs are demolded separately, and grooves are formed on the first adhesive layer 310 and the third adhesive layer respectively. The two ends of each groove extend through the side of the glass 1000.

[0119] Fill the two grooves with support medium 500 (soluble material or filler rod).

[0120] If necessary, a second adhesive layer 320 can be coated on the upper surface of the first adhesive layer 310, and a fourth adhesive layer can be coated on the lower surface of the third adhesive layer, and then the second glass layer 200 and the third glass layer (i.e., the lower glass layer) are respectively covered. The layers are bonded together by a lamination process.

[0121] The support medium 500 is discharged from the groove to form two layers of through holes 600.

[0122] In a preferred embodiment, the grooves on the first adhesive layer 310 and the grooves on the third adhesive layer are aligned or offset in the thickness direction of the glass 1000, i.e., the upper and lower grooves overlap or do not overlap. This offset arrangement prevents the through-holes 600 from concentrating and weakening the strength of the glass 1000, while providing installation space for the two independent lamp assemblies. The offset distance between the upper and lower grooves can be set as needed, for example, offset by half a groove spacing.

[0123] By using the above-mentioned double-sided imprinting method, two layers of through holes 600 can be formed within a single piece of glass 1000, and different light groups can be installed on them respectively (for example, the upper layer is red LED and the lower layer is blue LED, or different video content can be displayed to achieve double-sided display and playback), thus achieving a richer display effect.

[0124] This application also provides a display glass, including a lamp assembly and the aforementioned glass 1000. The lamp assembly is disposed within a through hole 600.

[0125] In one embodiment, the lamp assembly includes a transparent strip, a plurality of LED beads, and wires electrically connecting the LED beads. The LED beads and wires are disposed on the transparent strip, with each LED bead representing an independent pixel. The transparent strip is encapsulated in transparent resin or other hot-melt materials, such as PET, PC, PMMA, or silicone resin. The LED beads are externally controlled programmable LED beads integrating the IC, driver, and lamp core, such as models WS2812 and SK6812, thus facilitating control by an external control module.

[0126] In another embodiment, the lamp assembly includes a PCB circuit board, a flexible printed circuit board (FPC), and LED beads soldered onto the PCB and FPC. Circuitry is provided on the PCB and FPC for connecting the LED beads to an external power supply. The width of the PCB and FPC is slightly smaller than the diameter of the through-hole 600 for easy installation.

[0127] In another embodiment, the lamp assembly includes an optical fiber and a light source. The optical fiber is inserted through a through-hole 600, and the light source enters from one end, achieving the display effect through lateral emission of light from the optical fiber.

[0128] Because the through-holes 600 inside the glass 1000 are uniform in size and have smooth inner walls, the lamp assembly experiences low resistance and is less prone to jamming during installation, resulting in high installation efficiency. Simultaneously, the through-holes 600 provide physical isolation and protection for the lamp assembly, shielding it from external elements such as wind and rain, dust, and impacts. Since the glass 1000 itself is manufactured using low-cost, high-yield methods, the overall manufacturing cost of this display glass is effectively controlled, making it suitable for mass production and widespread application. When LED beads on the lamp assembly are damaged, the uniform size of the through-holes 600 allows for easy removal and replacement of the lamp assembly, resulting in low maintenance costs and extending the overall lifespan of the product.

[0129] Furthermore, the display glass may also include a control module. The control module is located outside the display glass and is electrically connected to the lamp assembly, used to control the lamp assembly's on / off state and the debugging and editing of the image. The control module can be a microcontroller, FPGA, or a dedicated LED controller, such as an SD card controller, DMX512 controller, mobile app, or computer control module.

[0130] Furthermore, the display glass may also include sealing elements disposed at both ends of the through-hole 600, so that the through-hole 600 forms a sealed cavity for housing the lamp assembly. The sealing elements may be rubber plugs, silicone plugs, or metal end caps, installed at the port of the through-hole 600 by interference fit or adhesive bonding to prevent moisture and dust from entering.

[0131] This application also provides a display wall, including the aforementioned display glass. Specifically, a display wall can be formed by splicing multiple display glasses. During splicing, the sides of adjacent display glasses are bonded together and fixed by structural adhesive or mechanical connectors. The display glasses can share power and control signal lines to achieve overall display. When the display glass is curved, the display wall in this embodiment can also be a curved display wall. Because it can use the aforementioned display glass, this display wall has advantages such as stable molding quality of the 600mm through-hole, easy installation and replacement of light-emitting components, and low overall manufacturing cost.

[0132] This application also provides an advertising display board, including the aforementioned display glass or display wall. The advertising display board can be used for bus stops, glass skybridges, glass railings, shop window advertisements, shopping mall displays, building lighting, and other applications. The advertising display board may include a frame, a power module, and a control system. The display glass is installed within the frame and connected to the power module and control system. Because it uses the aforementioned display glass, this advertising display board has advantages such as stable molding quality with 600mm through-holes, easy installation and replacement of light-emitting components, and low overall manufacturing cost, giving it good market competitiveness.

[0133] The above description is merely an embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method of manufacturing glass, characterized by, The method includes the following steps: A first adhesive layer is provided on the upper surface of the first glass layer; A fixture is covered on the first adhesive layer, and the fixture has a protruding ridge on the side facing the first adhesive layer, the protruding ridge being embedded in the first adhesive layer; The first adhesive layer is cured; The fixture is demolded, and a groove is formed on the first adhesive layer, with both ends of the groove extending through the side of the glass. The groove is filled with a supporting medium; The second glass layer is placed over the upper surface of the first adhesive layer; The supporting medium is removed from the groove, and through holes are formed at both ends extending through the side of the glass in the extending direction.

2. The method of manufacturing glass according to claim 1, wherein The fixture has multiple protruding ridges on the side facing the first adhesive layer. The protruding ridges extend in the length direction of the glass and are spaced apart along the width direction of the glass. The groove extends along the length of the glass, and multiple grooves are formed on the upper surface of the first adhesive layer, with the multiple grooves spaced apart along the width of the glass.

3. The method of manufacturing glass according to claim 1, wherein The protruding ridge extends along a straight line or curve and from one side of the glass to the other side of the glass.

4. The method of manufacturing glass according to claim 1, wherein The support medium is a soluble material or a filler rod.

5. The method of manufacturing glass according to claim 4, wherein The step of filling the groove with a support medium includes: The soluble material or filler rod is filled into the sleeve; The sleeve containing soluble material or a filler rod is placed in the groove.

6. The method of manufacturing glass according to claim 1, wherein After the step of filling the groove with the support medium, the method further includes the following step: A second adhesive layer is coated on the upper surface of the first adhesive layer; The second glass layer is placed over the upper surface of the second adhesive layer and bonded to the first adhesive layer via the second adhesive layer.

7. The method of manufacturing glass according to claim 1, wherein The method further includes the following steps: A third adhesive layer is provided on the lower surface of the first glass layer. A fixture is covered on the third adhesive layer, and the fixture has a protruding ridge on one side facing the third adhesive layer, the protruding ridge being embedded in the third adhesive layer.

8. The method of manufacturing glass according to claim 7, wherein When the first adhesive layer is cured, the third adhesive layer is also cured. After curing, the jig on the third adhesive layer is demolded, and grooves are formed on the third adhesive layer, with the two ends of the grooves extending through the side of the glass.

9. The method for manufacturing glass according to claim 7, characterized in that, The grooves on the first adhesive layer and the grooves on the third adhesive layer are aligned or misaligned in the thickness direction of the glass.

10. A type of glass, characterized in that, The glass is formed by the glass manufacturing method according to any one of claims 1-9.

11. A display glass, characterized in that, It includes a lamp assembly and glass as shown in claim 10 above, wherein the lamp assembly is disposed within a through hole in the glass.

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