Manufacturing process and 3D glass cover plate

By heating and softening the flat glass cover and using charged ions to bombard the area, the problems of complex and high cost in the manufacturing process of 3D glass covers have been solved, achieving the effects of simplified process and improved yield.

CN117902815BActive Publication Date: 2026-04-28TRULY OPTO ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TRULY OPTO ELECTRONICS
Filing Date
2024-01-12
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing manufacturing process for 3D glass covers is complex, with low yield and high cost. Hot bending equipment is expensive and mold wear is significant.

Method used

By heating and softening the flat glass cover and using charged ions to bombard the area, the desired curvature and bending area can be obtained, simplifying the manufacturing process and avoiding direct contact between the mold and the product.

Benefits of technology

This greatly simplifies the manufacturing process of 3D glass covers, improves product yield, and reduces product problems caused by mold defects.

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Abstract

The application discloses a manufacturing process and a 3D glass cover plate, and the manufacturing process comprises the following steps: 100, heating and softening a plane glass cover plate, and dissociating injected first gas to obtain charged ions; an electric field is applied to the charged ions, so that the charged ions continuously bombard an action area of the plane glass cover plate until the first bending degree of the action area reaches a specified value; wherein the initial bombardment depth of the charged ions is a first depth. By heating and softening the plane glass cover plate and adopting the charged ions to impact the action area, the desired bending degree and bending area are obtained, the manufacturing process of the 3D glass cover plate is greatly simplified, the mold and the product are non-contact, product problems caused by mold defects are greatly reduced, and the yield of the product is improved.
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Description

Technical Field

[0001] This invention relates to the field of 3D glass technology, and in particular to a manufacturing process and a 3D glass cover plate. Background Technology

[0002] Glass is a fundamental and crucial component of the optoelectronic technology industry, with wide applications in optical instruments, optical communications, and laser devices, primarily due to its excellent physical and chemical properties such as light transmittance, mechanical properties, and electrical insulation. Currently, curved (3D curved) glass cover products are favored by users for their unique shapes and curvaceous beauty. The traditional manufacturing process for 3D glass covers generally involves: flat glass shape making – hot bending – polishing – subsequent processes. However, on the one hand, the above manufacturing process is complex and numerous, with low yield, high energy consumption, and high price; on the other hand, hot bending equipment is expensive, inefficient, and the molds suffer significant wear and tear, resulting in high costs for producing curved glass. Summary of the Invention

[0003] In existing technologies, 3D glass manufacturing processes are complex, yield rates are low, and costs are high.

[0004] To address the aforementioned issues, a manufacturing process and 3D glass cover plate are proposed. By heating and softening the flat glass cover plate and using charged ions to bombard the affected area, the desired curvature and curvature area are obtained, which greatly simplifies the manufacturing process of the 3D glass cover plate. At the same time, the mold and the product do not come into contact, which greatly reduces product problems caused by mold defects and improves the product yield.

[0005] Firstly, a manufacturing process for producing 3D glass covers, comprising:

[0006] Step 100: Heat and soften the flat glass cover plate, and dissociate the injected first gas to obtain charged ions;

[0007] Step 200: Apply an electric field to the charged ions, so that the charged ions continuously bombard the effective area of ​​the planar glass cover plate until the first curvature of the effective area reaches a specified value.

[0008] The initial bombardment depth of the charged ions is the first depth.

[0009] In conjunction with the manufacturing process described in this invention, in a first possible embodiment, step 100 includes:

[0010] Step 110: Place the completed flat glass cover plate into a container;

[0011] Step 120: Heat the flat glass cover to a first temperature according to the material to soften it.

[0012] In conjunction with the first possible embodiment of the first aspect of the present invention, in the second possible embodiment, step 100 further includes:

[0013] Step 130: Inject the first gas into the container;

[0014] Step 140: Depending on the gas type, apply high voltage or an ion source to the first gas to dissociate the first gas and obtain the charged ions.

[0015] In conjunction with the second possible implementation of the first aspect of the present invention, in the third possible implementation, step 200 includes:

[0016] Step 210: Change the electric field applied to the charged ions to change the area of ​​influence of the charged ions;

[0017] Step 220: Continuously bombard the new area of ​​action with the charged ions to obtain a second curvature.

[0018] In conjunction with the manufacturing process described in this invention, in a fourth possible implementation, the first gas is BF3 or SiF4.

[0019] In conjunction with the manufacturing process described in this invention, in the fifth possible implementation, the first depth range is 10-100 μm.

[0020] In conjunction with the first possible embodiment of the first aspect of the present invention, in the sixth possible embodiment, the range of the first temperature is 600°C-750°C.

[0021] In conjunction with the second possible implementation of the first aspect of the present invention, in the seventh possible implementation, the voltage range of the high voltage is 2kV to 16kV.

[0022] Secondly, a 3D glass cover, manufactured using the process described in the first aspect, includes:

[0023] Glass cover body;

[0024] At least one curved area is formed on the glass cover plate body;

[0025] The curvature of the curved region is determined by:

[0026] The flat glass cover is heated and softened, and the injected first gas is dissociated to obtain charged ions. An electric field is applied to the charged ions, so that the charged ions continuously bombard the working area of ​​the flat glass cover to form the shape.

[0027] In conjunction with the 3D glass cover described in the second aspect, in a first possible implementation, the charged ions are obtained by applying a high voltage or an ion source to the first gas to cause the first gas to dissociate.

[0028] The voltage range of the high-voltage electricity is 2kV to 16kV.

[0029] The manufacturing process and 3D glass cover plate described in this invention greatly simplify the manufacturing process of 3D glass cover plates by heating and softening the flat glass cover plate and using charged ions to bombard the area to obtain the desired curvature and curvature area. At the same time, the mold and the product do not come into contact, which greatly reduces product problems caused by mold defects and improves the product yield. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a first schematic diagram of a manufacturing process according to the present invention;

[0032] Figure 2 This is a second schematic diagram of a manufacturing process according to the present invention;

[0033] Figure 3 This is a third schematic diagram of a manufacturing process according to the present invention;

[0034] Figure 4 This is a fourth schematic diagram of a manufacturing process according to the present invention. Detailed Implementation

[0035] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are all within the scope of protection of this invention.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] In existing technologies, 3D glass manufacturing processes are complex, yield rates are low, and costs are high.

[0041] To address the above issues, a manufacturing process and a 3D glass cover are proposed.

[0042] Example 1

[0043] Firstly, such as Figure 1 , Figure 1 This is a first schematic diagram of a manufacturing process according to the present invention; a manufacturing process for producing a 3D glass cover includes:

[0044] Step 100: Heat and soften the flat glass cover plate, and dissociate the injected first gas to obtain charged ions; Step 200: Apply an electric field to the charged ions, so that the charged ions continuously bombard the action area of ​​the flat glass cover plate until the first curvature of the action area reaches a specified value; wherein, the initial bombardment depth of the charged ions is the first depth; the action area includes at least one action position.

[0045] Preferably, the first depth range is 10-100 μm.

[0046] By bombarding the glass surface with high-energy atoms / charged ions, these atoms / charged ions embed themselves into the glass, forming a dense material layer at a certain depth. A specific electric field is applied, allowing these high-energy atoms to selectively inject into specific areas. By heating and softening a flat glass cover and then using charged ions to bombard the target area, the desired curvature and bending region can be obtained. This significantly simplifies the manufacturing process of 3D glass covers. Furthermore, the non-contact nature of the mold and the product greatly reduces product problems caused by mold defects, thus improving product yield.

[0047] Preferably, such as Figure 2 , Figure 2 This is a second schematic diagram of a manufacturing process according to the present invention; step 100 includes:

[0048] Step 110: Place the completed flat glass cover plate into a container; Step 120: Heat the flat glass cover plate to the first temperature according to the material to soften it.

[0049] First, a flat glass cover plate for the 3D glass cover plate is made. After the cover plate is made, it can be placed in a sealed container.

[0050] Before being bombarded by charged ions, the flat glass cover needs to be heated and softened by high temperature. Depending on the material, the temperature varies, with the initial temperature ranging from 600°C to 750°C.

[0051] After the flat glass cover is heated and softened, it can be bent by ion bombardment.

[0052] Furthermore, such as Figure 3 , Figure 3 This is a third schematic diagram of a manufacturing process of the present invention; step 100 further includes: step 130, injecting a first gas into the container; step 140, applying a high voltage or an ion source to the first gas according to the gas type to dissociate the first gas and obtain charged ions.

[0053] Preferably, the voltage range of the high-voltage electricity is 2kV to 16kV.

[0054] After the first gas is introduced into the container, it needs to be dissociated. The first gas can be BF3 or SiF4. Then, the dissociated charged ions bombard the target region. Specifically, the principle is as follows:

[0055] A first gas is introduced into the container. Under the influence of high voltage or an ion source, the gas dissociates, producing ions with a certain charge. An electric field is applied between the glass and the ion source. Under the influence of this electric field, the charged ions bombard the heated glass surface and penetrate to a certain depth. The more ions / atoms bombard, the denser the glass surface becomes, making it more difficult for subsequent bombardments of charged ions to penetrate, or resulting in shallower penetration depths. This forms a dense material layer on the glass surface. Simultaneously, the electric field can be applied to specific locations on a flat glass cover, allowing charged ion implantation only at those specific locations.

[0056] Ultimately, due to the implantation of charged ions into the glass action area, the compressive stress became inconsistent with that in other areas, causing the flat glass cover to bend.

[0057] like Figure 4 , Figure 4 This is a fourth schematic diagram of a manufacturing process according to the present invention. Step 200 includes:

[0058] Step 210: Change the electric field applied to the charged ions to change the area of ​​action of the charged ions; Step 220: Continuously bombard the new area of ​​action with charged ions to obtain a second curvature.

[0059] Example 2

[0060] Secondly, a 3D glass cover, manufactured using the process described in the first aspect, includes:

[0061] Glass cover body;

[0062] At least one curved area is formed on the glass cover plate body;

[0063] The curvature of the curved area is determined by:

[0064] The flat glass cover is heated and softened, and the injected first gas is dissociated to obtain charged ions. An electric field is applied to the charged ions, so that the charged ions continuously bombard the flat glass cover to form the effective area.

[0065] Charged ions are obtained by applying a high voltage or an ion source to the first gas to cause the first gas to dissociate; wherein the voltage range of the high voltage is 2kV~16kV.

[0066] The manufacturing process and 3D glass cover plate described in this invention greatly simplify the manufacturing process of 3D glass cover plates by heating and softening the flat glass cover plate and using charged ions to bombard the area to obtain the desired curvature and curvature area. At the same time, the mold and the product do not come into contact, which greatly reduces product problems caused by mold defects and improves the product yield.

[0067] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manufacturing process for producing 3D glass covers, characterized in that, include: Step 100: Heat and soften the flat glass cover plate, and dissociate the injected first gas to obtain charged ions; Step 200: Apply an electric field to the charged ions, so that the charged ions continuously bombard the effective area of ​​the planar glass cover plate until the first curvature of the effective area reaches a specified value. Wherein, the initial bombardment depth of the charged ions is the first depth; The first depth range is 10-100 μm.

2. The manufacturing process according to claim 1, characterized in that, Step 100 includes: Step 110: Place the completed flat glass cover plate into a container; Step 120: Heat the flat glass cover to a first temperature according to the material to soften it.

3. The manufacturing process according to claim 2, characterized in that, Step 100 further includes: Step 130: Inject the first gas into the container; Step 140: Depending on the gas type, apply high voltage or an ion source to the first gas to dissociate the first gas and obtain the charged ions.

4. The manufacturing process according to claim 3, characterized in that, Step 200 includes: Step 210: Change the electric field applied to the charged ions to change the area of ​​influence of the charged ions; Step 220: Continuously bombard the new area of ​​action with the charged ions to obtain a second curvature.

5. The manufacturing process according to claim 1, characterized in that, The first gas is BF3 or SiF4.

6. The manufacturing process according to claim 2, characterized in that, The first temperature range is 600°C-750°C.

7. The manufacturing process according to claim 3, characterized in that, The voltage range of the high-voltage electricity is 2kV to 16kV.

8. A 3D glass cover, manufactured using the process described in any one of claims 1-7, characterized in that, include: Glass cover body; At least one curved area is formed on the glass cover plate body; The curved region passes through: The flat glass cover is heated and softened, and the injected first gas is dissociated to obtain charged ions. An electric field is applied to the charged ions, so that the charged ions continuously bombard the working area of ​​the flat glass cover to form the shape.

9. The 3D glass cover plate according to claim 8, characterized in that, The charged ions are obtained by applying a high voltage or an ion source to the first gas to cause the first gas to dissociate. The voltage range of the high-voltage electricity is 2kV to 16kV.

Citation Information

Patent Citations

  • Chemically-strengthened thin glass substrates new paradigms for modified curvature and methods of manufacture

    CN112055702A

  • Wafer curvature adjusting method

    CN112687524A