Laminated glass and method for preparing same, and vehicle

Abstract

Provided in the present application are laminated glass and a method for preparing same, and a vehicle. The laminated glass comprises a first glass plate, a first bonding layer, a protective layer, a second bonding layer and a second glass plate that are stacked in sequence, wherein the first glass plate has a surface compressive stress CS, and the surface compressive stress CS satisfies the following condition: CS≥90 MPa; the first glass plate, the first bonding layer and the protective layer are configured to form a strength protection structure; and the strength protection structure is used to protect the second glass plate. The laminated glass further comprises a functional layer, wherein the functional layer is disposed between the first glass plate and the protective layer. By forming the strength protection structure, the present application improves the structural strength of the laminated glass and reduces the probability of cracking of the laminated glass caused by impact from foreign objects. The present application is further provided with a protective layer having a crack-preventing function, thereby reducing the probability of cracking of the laminated glass caused by impact from foreign objects, minimizing the risk of injury to occupants from laminated glass cracking, and improving the vehicle safety performance.

Description

Laminated glass, method for manufacturing the same, and vehicle

[0001] The present disclosure claims priority to the Chinese patent application No. 202510232320.8, filed on February 28, 2025, and entitled "Laminated glass, method for manufacturing the same, and vehicle", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application belongs to the technical field of glass, and in particular relates to a laminated glass, a method for manufacturing the same, and a vehicle. BACKGROUND

[0003] More and more vehicles are equipped with panoramic sunroof glass, and the sunroof functions are diversified, such as sunshade-free curtain, light-adjustable sunroof, atmosphere lamp sunroof, etc. With the increasing size and increasing functions of the sunroof glass, the safety performance of the sunroof glass is gradually increased. However, the sunroof glass in the related art is still prone to breakage, which can easily cause injury to the user and reduce the safety performance of the vehicle. SUMMARY

[0004] In view of this, the first aspect of the present application provides a laminated glass, comprising a first glass sheet, a first bonding layer, a protective layer, a second bonding layer, and a second glass sheet which are sequentially stacked, the first glass sheet has a surface compressive stress CS, the surface compressive stress CS satisfies the following condition: CS≥90MPa, the first glass sheet, the first bonding layer, and the protective layer are used to form a strength protection structure, and the strength protection structure is used to protect the second glass sheet.

[0005] The laminated glass further comprises a functional layer, which is arranged between the first glass sheet and the protective layer.

[0006] The width of the protective layer is less than or equal to the width of the first glass sheet, and the width of the protective layer is greater than the width of the second glass sheet.

[0007] The width of the first glass sheet is equal to the width of the first bonding layer, and the width of the second glass sheet is equal to the width of the second bonding layer; the width of the first bonding layer is greater than the width of the protective layer, and the width of the second bonding layer is less than the width of the protective layer.

[0008] The laminated glass further comprises a sealing member, which is arranged at the side edges of the first glass sheet, the first bonding layer, and the protective layer, and is also arranged on the surface of the protective layer away from the first glass sheet.

[0009] The sealing member includes a first portion and a second portion, the first portion covers the side edges of the first glass sheet, the first bonding layer, and the protective layer, and the second portion covers the surface of the protective layer away from the first glass sheet, and the second portion covers the peripheral portion of the protective layer.

[0010] The second portion is spaced apart from the second bonding layer, and the second portion is spaced apart from the second glass sheet.

[0011] In the extension direction from the edge of the laminated glass to the center of the laminated glass, the size range of the sealing member covering the surface of the protective layer away from the first glass sheet is 10mm-100mm.

[0012] The functional layer includes a heat-reflecting layer, and the heat-reflecting layer is arranged on the side of the first glass sheet facing the first bonding layer.

[0013] The functional layer includes a light-adjusting functional layer, and the light-adjusting functional layer is arranged on the first bonding layer.

[0014] The first bonding layer includes a first bonding sub-layer and a second bonding sub-layer, and the first glass sheet, the first bonding sub-layer, the light-adjusting functional layer, the second bonding sub-layer, and the protective layer are sequentially arranged in the stacking direction of the laminated glass.

[0015] When the light-adjusting functional layer is in an energized state, the laminated glass has a visible over-transmittance TL1, and the visible over-transmittance TL1 satisfies the following condition: 5%<TL1≤20%;

[0016] When the light-adjusting functional layer is in a de-energized state, the laminated glass has a visible over-transmittance TL2, and the visible over-transmittance TL2 satisfies the following condition: 0.1%≤TL2≤5%.

[0017] The laminated glass further includes a light-emitting assembly, the light-emitting assembly includes a light source and a light guide, the light source and the light guide are arranged on the side edge of the second glass sheet, the light source is connected to the light guide, the light source is used to emit light, and the light guide is used to guide the light emitted by the light source to the second glass sheet.

[0018] The light guide abuts against the side edge of the second glass sheet, and the light source is arranged at the end of the light guide away from the side edge of the second glass sheet.

[0019] The light-emitting assembly further includes a display pattern layer, and the display pattern layer is arranged on the second glass sheet.

[0020] The light-emitting assembly further comprises a cover body, one end of the cover body is connected to the protective layer, and the other end of the cover body is connected to the second glass plate away from the first glass plate, the cover body forms a containing cavity, and the light source and the light guide member are arranged in the containing cavity.

[0021] The laminated glass further comprises a low-emissivity layer, and the low-emissivity layer is arranged on a side of the second glass plate away from the second bonding layer.

[0022] The second aspect of the present application provides a preparation method of the laminated glass provided in the first aspect of the present application, and the preparation method comprises:

[0023] A first glass plate, a first bonding layer, a protective layer, and a functional layer are provided, the first glass plate has a surface compressive stress CS, and the surface compressive stress CS satisfies the following condition: CS≥90MPa.

[0024] The first glass plate, the first bonding layer, the functional layer, and the protective layer are sequentially stacked and arranged, and a first lamination process is performed to obtain a first lamination group.

[0025] A second bonding layer and a second glass plate are provided.

[0026] The first lamination group, the second bonding layer, and the second glass plate are sequentially stacked and arranged, and a second lamination process is performed to obtain the laminated glass provided in the first aspect of the present application.

[0027] The functional layer comprises a light-adjusting functional layer, and the light-adjusting functional layer is arranged on the first bonding layer, and the step of performing the first lamination process further comprises:

[0028] A first bonding sublayer and a second bonding sublayer are provided.

[0029] The first glass plate, the first bonding sublayer, the light-adjusting functional layer, the second bonding sublayer, and the protective layer are sequentially stacked and arranged, and the first lamination process is performed, and the first bonding sublayer and the second bonding sublayer constitute the first bonding layer.

[0030] The functional layer comprises a heat-reflecting layer, and the step of performing the first lamination process further comprises:

[0031] A heat-reflecting layer arranged on a side of the first glass plate is formed.

[0032] The first glass plate, the first bonding layer, the functional layer, and the protective layer are sequentially stacked and arranged, and the first lamination process is performed, and the heat-reflecting layer is arranged on a side of the first glass plate facing the first bonding layer.

[0033] The second lamination process further includes:

[0034] A low-emissivity layer is formed on one side of the second glass plate;

[0035] The first laminated assembly, the second adhesive layer, and the second glass plate are sequentially stacked and a second lamination process is performed; wherein, the low-emissivity layer is disposed on the side of the second glass plate opposite to the second adhesive layer.

[0036] A third aspect of this application provides a vehicle comprising a body and laminated glass as provided in the first aspect of this application, the laminated glass being disposed at an opening in the body.

[0037] This application provides laminated glass, a method for preparing the same, and a vehicle. By forming a strength protection structure, the structural strength of the laminated glass is improved, reducing the probability of the laminated glass breaking due to impact from external objects. Furthermore, this application also provides a protective layer with anti-breakage function, which further reduces the probability of the laminated glass breaking due to impact from external objects and reduces the risk of injury to occupants from laminated glass breakage, thereby improving the safety performance of the vehicle. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0039] Figure 1 is a schematic diagram of the structure of laminated glass provided in one embodiment of this application.

[0040] Figure 2 is a schematic diagram of a laminated glass with a sealing element provided in one embodiment of this application.

[0041] Figure 3 is a schematic diagram of the structure of a laminated glass with a heat-reflective layer provided in one embodiment of this application.

[0042] Figure 4 is a schematic diagram of the structure of a laminated glass with a dimming function layer provided in one embodiment of this application.

[0043] Figure 5 is a schematic diagram of the structure of a laminated glass with a light-emitting component provided in one embodiment of this application.

[0044] Figure 6 is a schematic diagram of the structure of a laminated glass with a low-emissivity layer provided in one embodiment of this application.

[0045] Figure 7 is a schematic diagram of the structure of laminated glass provided in another embodiment of this application.

[0046] Figure 8 shows the performance parameters of the laminated glass in Comparative Examples 1-4 and Examples 1-3.

[0047] Labeling: Laminated glass 1, First glass plate 11, First adhesive layer 12, First adhesive sub-layer 121, Second adhesive sub-layer 122, Sealing adhesive sub-layer 123, Protective layer 13, Second adhesive layer 14, Second glass plate 15, Seal 16, Body adhesive 161, Heat reflective layer 21, Dimming function layer 22, Light-emitting component 23, Light source 231, Light guide 232, Display pattern layer 233, Cover 234, Low-emissivity layer 24. Detailed Implementation

[0048] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0049] Please refer to Figures 1 and 4. This application provides a laminated glass 1, which includes a first glass plate 11, a first adhesive layer 12, a protective layer 13, a second adhesive layer 14, and a second glass plate 15 stacked sequentially. The first glass plate 11 has a surface compressive stress CS, which satisfies the following condition: CS≥90MPa. The protective layer 13 is used to prevent the first glass plate 11 from breaking.

[0050] The laminated glass 1 further includes a functional layer, which is disposed between the first glass plate 11 and the protective layer 13.

[0051] When laminated glass 1 is installed on a vehicle, it can serve as a sunroof, windshield, rear windshield, side window, or corner window, thus providing more display application scenarios for the vehicle. It is preferred as a sunroof.

[0052] Specifically, the first glass plate 11 serves as the outer glass plate of the laminated glass 1. The first glass plate 11 has a first surface and a second surface. The first surface is away from the first adhesive layer 12 and in contact with the external environment of the vehicle. The second surface is connected to the first adhesive layer 12 and is close to the protective layer 13. The second glass plate 15 serves as the inner glass plate of the laminated glass 1. The second glass plate 15 has a third surface and a fourth surface. The third surface is connected to the second adhesive layer 14 and is close to the protective layer 13. The fourth surface is away from the second adhesive layer 14 and in contact with the internal environment of the vehicle. The protective layer 13 is disposed between the first adhesive layer 12 and the second adhesive layer 14. Optionally, the first adhesive layer 12 bonds the first glass plate 11 to the protective layer 13, and the second adhesive layer 14 bonds the second glass plate 15 to the protective layer 13.

[0053] The physical thickness of the first glass plate 11 is 1mm to 5mm, specifically, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, or 5mm, etc. The visible light transmittance of the first glass plate 11 is ≥70%, ≥80%, or ≥90%. Preferably, the visible light transmittance of the first glass plate 11 is ≥88%, specifically, 88%, 91%, 93%, 95%, or 97%, etc. By limiting the visible light transmittance of the first glass plate 11 to greater than or equal to 88%, the heat insulation and reflection of the laminated glass 1 can be increased, thereby improving the comfort of the vehicle interior.

[0054] The first glass plate 11 is generally made of inorganic glass and / or organic glass materials, such as soda-lime glass, borosilicate glass, aluminosilicate glass, polymethyl methacrylate, polycarbonate, etc.; soda-lime glass is preferred, and ultra-transparent glass (ultra-white glass) is more preferred. The total iron content (calculated as Fe2O3) of the ultra-transparent glass is less than or equal to 0.0015%, even less than or equal to 0.01%, and even more than or equal to 50 PPM, and the visible light transmittance of the ultra-transparent glass is 90% to 95%. For example, the first glass plate 11 can be a 3.15 mm thick transparent glass with a visible light transmittance of 89%, or a 1.1 mm thick green glass with a visible light transmittance of 90%.

[0055] The physical thickness of the second glass plate 15 is 0.8mm to 2.5mm, specifically, examples include 0.8mm, 1mm, 1.3mm, 1.5mm, 1.8mm, 2mm, or 2.5mm. The visible light transmittance of the second glass plate 15 is ≥70%, ≥80%, ≥85%, or ≥90%. The second glass plate 15 is generally made of inorganic glass and / or organic glass materials, such as soda-lime glass, borosilicate glass, aluminosilicate glass, polymethyl methacrylate, polycarbonate, etc.; soda-lime glass is preferred, and ultra-transparent glass (ultra-white glass) is more preferred. The second glass plate 15 is transparent glass, ultra-transparent glass, or light-colored glass; the total iron content (calculated as Fe2O3) of the transparent glass (standard white glass) is less than or equal to 0.1%, or even less than or equal to 0.05%, and the visible light transmittance of the transparent glass is 80% to 95%. The total iron content (calculated as Fe2O3) of the ultra-transparent glass (ultra-white glass) is less than or equal to 0.015%, even less than or equal to 0.01%, and even less than or equal to 50 PPM. The visible light transmittance of the ultra-transparent glass is 90% to 95%. For example, the second glass plate 15 can be a 2.1 mm thick transparent glass with a visible light transmittance of 89%, or a 1.6 mm thick green glass with a visible light transmittance of 83%, or a 2.1 mm thick green glass with a visible light transmittance of 80%.

[0056] The first adhesive layer 12 and the second adhesive layer 14 can be a transparent thermoplastic polymer film or a light-colored thermoplastic polymer film. Specifically, the first adhesive layer 12 and the second adhesive layer 14 are thermoplastic materials, such as any one or a combination of polyvinyl alcohol, polycarbonate, ethylene vinyl acetate, thermoplastic polyurethane, polyacetal resin, polybutylene terephthalate, polyethylene vinyl acetate, polyethylene naphthalate, polyvinyl chloride, polyvinyl fluoride, polyacrylate, polymethyl methacrylate, and polyurethane.

[0057] Optionally, the visible light transmittance of the first adhesive layer 12 and the second adhesive layer 14 is ≥70%, ≥80%, or ≥85%. When the first adhesive layer 12 and the second adhesive layer 14 are transparent thermoplastic polymers, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 85%. For example, the visible light transmittance of the first adhesive layer 12 and the second adhesive layer 14 can be, but is not limited to, 85%, 90%, or 95%. Optionally, the first adhesive layer 12 and the second adhesive layer 14 can be a single-layer structure or a multi-layer structure. Examples of multi-layer structures include double-layer, triple-layer, quadruple-layer, and five-layer structures. The first adhesive layer 12 and the second adhesive layer 14 can also have other functions, such as adding infrared absorbers to provide sun protection or heat insulation, adding ultraviolet absorbers to provide ultraviolet protection, or having at least one layer of the multi-layer structure with a higher plasticizer content to provide sound insulation.

[0058] The physical thickness of the first adhesive layer 12 is 0.2mm to 1mm, specifically for example, 0.2mm, 0.38mm, 0.76mm, or 1mm. The physical thickness of the second adhesive layer 14 is ≤0.5mm, preferably 0.38mm.

[0059] This embodiment controls the total physical thickness of multiple adhesive layers by limiting the physical thickness of the first adhesive layer 12 and the second adhesive layer 14, which is more beneficial to the molding process of different products.

[0060] The functional layer includes, but is not limited to, one or more combinations of dimming functional layer, heat reflection layer, color changing layer, light guide layer, and display layer. The functional layer can be set according to product needs. Optionally, the functional layer is disposed on the surface of the first glass plate 11 facing the first adhesive layer 12; or, the functional layer is disposed on the first adhesive layer 12; or, the functional layer is disposed on the surface of the protective layer 13 facing the first adhesive layer 12.

[0061] The first glass plate 11 has a surface compressive stress CS, where CS (compressive stress) refers to the compressive stress on the surface of the first glass plate 11. The surface compressive stress CS satisfies the following condition: CS ≥ 90 MPa, specifically, 90 MPa, 100 MPa, 150 MPa, 200 MPa, 250 MPa, 300 MPa, 350 MPa, 400 MPa, 450 MPa, 500 MPa, or 550 MPa, etc. This surface compressive stress is a permanent residual compressive stress formed during the cooling process of glass production, due to the temperature difference between the outer surface of the glass and the center of the glass thickness caused by the different cooling rates. Surface compressive stress can be used to characterize the strength of the glass, that is, an evaluation index of its resistance to external impact. The higher the value, the stronger the glass's ability to resist external impact. This embodiment improves the structural strength of the laminated glass 1 and reduces the probability of the laminated glass 1 breaking due to external impact by using a first glass plate 11 with high surface compressive stress.

[0062] The protective layer 13 can be used to block the broken first glass panel 11, thereby preventing or mitigating injury to the vehicle occupants from the first glass panel 11 and foreign objects. Furthermore, the protective layer 13 helps to improve the structural strength of the laminated glass 1, further reducing the probability of the laminated glass 1 breaking due to impact from foreign objects. The protective layer 13 can be made of polyester film material; for example, the material of the protective layer 13 is selected from at least one of PVC (polyvinyl chloride), PP (polypropylene), PET (polyethylene terephthalate), PA (polyamide), BOPET (biaxially oriented polyethylene terephthalate), and PMMA (polymethyl methacrylate). The physical thickness of the protective layer 13 is 0.025mm to 0.2mm, specifically for example, 0.025mm, 0.05mm, 0.075mm, 0.01mm, 0.0125mm, 0.015mm, 0.0175mm, or 0.2mm, etc.; preferably, the physical thickness of the protective layer 13 is 0.05mm to 0.125mm.

[0063] In one embodiment, the width of the protective layer 13 is less than or equal to the width of the first glass plate 11, and the width of the protective layer 13 is greater than the width of the second glass plate 15. In other words, the orthographic projection of the protective layer 13 onto the orthographic projection of the second glass plate 15 onto the first glass plate 11. More specifically, the width of the first glass plate 11 is greater than the width of the second glass plate 15 to facilitate the arrangement of functional components on the side of the second glass plate 15.

[0064] Typically in a vehicle, the portion of the first glass panel 11 that protrudes from the second glass panel 15 is provided with body parts, and the side of the second glass panel 15 is provided with functional components, etc. The portion of the first glass panel 11 that protrudes from the second glass panel 15 can be set at the top of the body sheet metal, and the second glass panel 15 corresponds to the user inside the vehicle.

[0065] This embodiment limits the width relationship between the protective layer 13, the first glass plate 11, and the second glass plate 15, so that the protective layer 13 can fully contact the first glass plate 11, and the strength protection structure can better protect the second glass plate 15. This helps to prevent more glass fragments from injuring the users inside the vehicle, better prevent or mitigate the damage to the users inside the vehicle caused by the first glass plate 11 and foreign objects, and better protect the users inside the vehicle, thereby improving the safety performance of the vehicle.

[0066] Furthermore, the width of the first glass plate 11 is equal to the width of the first adhesive layer 12, and the width of the second glass plate 15 is equal to the width of the second adhesive layer 14; the width of the first adhesive layer 12 is greater than the width of the protective layer 13, and the width of the second adhesive layer 14 is less than the width of the protective layer 13.

[0067] The first glass plate 11, the first adhesive layer 12, the protective layer 13, the second adhesive layer 14, and the second glass plate 15 form a trapezoidal structure, which helps to reduce the impact force of external objects on the first glass plate 11 and further reduces the probability of the laminated glass breaking due to external impact.

[0068] Furthermore, the second adhesive layer 14 is disposed at the center of the protective layer 13 or adjacent to the center of the protective layer 13, and the second glass plate 15 is disposed facing the second adhesive layer 14.

[0069] Preferably, the second glass plate 15 is disposed directly opposite the second adhesive layer 14; specifically, the center of the second glass plate 15 is disposed at the center of the second adhesive layer 14, and the width of the second glass plate 15 is equal to that of the second adhesive layer 14. For example, the edges of the second glass plate 15 and the second adhesive layer 14 are aligned.

[0070] The second adhesive layer 14 and the second glass plate 15 are positioned at the center of the protective layer 13, corresponding to or adjacent to it, while avoiding the periphery of the protective layer 13. This makes it easier for the protective layer 14 to prevent more glass fragments from injuring the users inside the vehicle, and also makes it easier for the strength protection structure to better protect the second glass plate 15.

[0071] Please refer to Figure 2. In one embodiment, the laminated glass 1 further includes a sealing member 16. The sealing member 16 is disposed on the side of the first glass plate 11, the first adhesive layer 12, and the protective layer 13. The sealing member 16 is also disposed on the surface of the protective layer 13 opposite to the first glass plate 11.

[0072] Specifically, the sealing element 16 includes a first part and a second part connected to each other. The first part covers the side of the first glass plate 11, the first adhesive layer 12, and the protective layer 13. The second part covers the surface of the protective layer 13 away from the first glass plate 11 and covers the peripheral portion of the protective layer 13.

[0073] This embodiment, by providing a seal 16 composed of a first part and a second part, can further improve the connection performance of the layer structure between the strength protection structures. Under the mutual action of the seal 16 and the strength protection structure, the strength of the strength protection structure is improved, the protection performance of the second glass plate 15 is improved, and the safety performance of the vehicle is further improved. The seal 16 can also prevent glass fragments from injuring the users inside the vehicle, and better prevent or mitigate the injury of the first glass plate 11 and foreign objects to the users inside the vehicle, thereby improving the safety performance of the vehicle.

[0074] Furthermore, the second portion is spaced apart from the second adhesive layer 14, and the second portion is spaced apart from the second glass plate 15.

[0075] This embodiment, by creating a gap between the second part and the second adhesive layer 14 and the second glass plate 15, prevents the second glass plate 15 from being affected by the seal 16 when an external object impacts the strength protection structure. This also prevents the seal 16 from pulling on the second glass plate 15 under the impact of an external object, thereby further improving the protective performance of the second glass plate 15 and further enhancing the safety performance of the vehicle.

[0076] The seal 16, together with the protective layer 13, seals the first adhesive layer 12 to prevent environmental damage to the first adhesive layer 12 and improve the reliability of the laminated glass 1. Optionally, the seal 16 is disposed around the periphery of the laminated glass 1. The seal 16 can be manufactured by injection molding or adhesive bonding. The material of the seal 16 can be a plastic material, such as PU injection molding, PVC injection molding, or EPDM.

[0077] Optionally, the sealing element 16 is also disposed on the surface of the first glass plate 11 opposite to the protective layer 13. Specifically, the sealing element 16 further includes a third part connected to the first part, the third part and the second part being disposed on opposite sides of the first part, the third part covering the surface of the first glass plate 11 opposite to the protective layer 13, and the third part covering the peripheral portion of the first glass plate 11.

[0078] Extending from the edge of the laminated glass 1 to its center, the dimension of the sealant 16 covering the protective layer 13 away from the surface of the first glass plate 11 ranges from 10mm to 100mm. Specifically, examples include 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, or 100mm. In other words, the peripheral portion of the protective layer 13 overlaps with the edge portion of the sealant 16, and the overlapping portion ranges from 10mm to 100mm.

[0079] This embodiment also increases the structural strength of the strength protection structure by providing a seal 16, thereby further improving the safety performance of the vehicle. In addition, the seal 16 can work with the protective layer 13 to better prevent or mitigate the damage to the vehicle's interior users caused by the first glass panel 11 and foreign objects, thereby improving the vehicle's safety performance.

[0080] Furthermore, the surface of the sealing member 16 facing away from the first glass plate 11 is used to accommodate the body adhesive 161, which is used to bond body parts. The body parts can be body trim parts, interior functional parts, structural parts that cooperate with interior functional parts, etc. In this embodiment, by placing the body adhesive 161 on the sealing member 16, it avoids placing the body adhesive 161 on the first glass plate 11 or the protective layer 13, preventing interference between the body parts and the first glass plate 11 or the protective layer 13, thereby improving the structural strength of the laminated glass 1 and enhancing vehicle safety performance.

[0081] Please refer to Figure 3. In one embodiment, the functional layer includes a heat-reflective layer 21, which is disposed on the side of the first glass plate 11 facing the first adhesive layer 12.

[0082] The heat-reflective layer 21 is used to improve the heat insulation effect of the laminated glass 1, thereby enhancing the comfort inside the vehicle and enabling the laminated glass 1 to function without a sunshade. If the first glass panel 11 and the second glass panel 15 are provided with functional layers, the heat-reflective layer 21 can also protect the functional layers. The heat-reflective layer 21 can also be understood as an infrared reflective layer. The heat-reflective layer 21 is disposed on the inner surface of the first glass panel 11. Specifically, the heat-reflective layer 21 includes a metal functional layer, and the number of the metal functional layers is at least two, specifically two, three, or four, etc.; multiple metal functional layers are stacked; the material of the metal functional layer is selected from at least one element selected from Ag, Au, Cu, Al, and Pt, or an alloy thereof. For example, the metal layer is a silver-plated layer. The heat-reflective layer 21 can be prepared by PVD (physical vapor deposition) or CVD (chemical vapor deposition).

[0083] The laminated glass 1 has a solar energy reflectance RE, which satisfies the following conditions: RE ≥ 28%, specifically, 28%, 30%, 35%, 40%, 45%, or 50%, etc.; preferably, the solar energy reflectance RE ≥ 40%.

[0084] Furthermore, by limiting the visible transmittance of the first glass panel 11 to ≥88%, the heat insulation and reflection of the laminated glass 1 can be increased, thereby further enhancing the comfort of the vehicle interior.

[0085] Please refer to Figure 4. In another embodiment, the laminated glass 1 further includes a dimming functional layer 22, which is disposed on the first adhesive layer 12.

[0086] The dimming functional layer 22 can have different visible light transmittances under different voltage values; furthermore, the dimming functional layer 22 can have different colors under different voltage values. Optionally, the material of the dimming functional layer 22 is selected from at least one of PDLC (polymer dispersed liquid crystal), SPD (suspended particle), and EC (electrochromic). Further, the dimming functional layer 22 includes multiple liquid crystal cells, each of which can be controlled individually. For example, using the material of the PDLC dimming functional layer 22, energizing each liquid crystal cell can change the visible light transmittance.

[0087] The dimming layer 22 has a light control function, which can be adjusted by powering on and off, so that the laminated glass 1 has an adjustable light function. When powered on, the dimming layer 22 has different visible light transmittances as the voltage applied to the dimming layer 22 changes, so that the laminated glass 1 has different visible light transmittances to meet the visible light transmittance requirements in various scenarios.

[0088] Specifically, when the dimming functional layer 22 is energized, the laminated glass 1 has a visible transmittance TL1, which satisfies the following condition: 5% < TL1 ≤ 20%, for example, 6%, 8%, 10%, 12%, 14%, 16%, 18%, or 20%, etc.

[0089] When the dimming functional layer 22 is in a power-off state, the laminated glass 1 has a visible transmittance TL2, which satisfies the following condition: 0.1% ≤ TL2 ≤ 5%. For example, it can be 0.1%, 0.3%, 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, or 5%.

[0090] The first adhesive layer 12 includes a first adhesive sublayer 121 and a second adhesive sublayer 122. Along the stacking direction of the laminated glass 1, the first glass plate 11, the first adhesive sublayer 121, the dimming functional layer 22, the second adhesive sublayer 122, and the protective layer 13 are stacked sequentially.

[0091] A dimming functional layer 22 is disposed between the first adhesive sublayer 121 and the second adhesive sublayer 122. The first adhesive sublayer 121 is bonded to one side of the first glass plate 11 and to the other side of the dimming functional layer 22. The second adhesive sublayer 122 is bonded to one side of the dimming functional layer 22 and to the other side of the second glass plate 15.

[0092] Optionally, the physical thickness of the first adhesive sublayer 121 is ≤0.8mm, preferably 0.38mm; and the physical thickness of the second adhesive sublayer 122 is ≥0.7mm, preferably 0.76mm.

[0093] Optionally, the first adhesive layer 12 further includes a sealing adhesive sub-layer 123, which is disposed between the first adhesive sub-layer 121 and the second adhesive sub-layer 122, and is disposed in the same layer as the dimming functional layer 22. The physical thickness of the sealing adhesive sub-layer 123 is equal to the physical thickness of the dimming functional layer 22. The physical thickness of the sealing adhesive sub-layer 123 is ≤0.5mm, preferably 0.38mm.

[0094] Please refer to Figure 5. In another embodiment, the laminated glass 1 further includes a light-emitting component 23. The light-emitting component 23 includes a light source 231 and a light guide 232. The light source 231 and the light guide 232 are both disposed on the side of the second glass plate 15. The light source 231 is connected to the light guide 232. The light source 231 is used to emit light, and the light guide 232 is used to guide the light emitted by the light source 231 to the second glass plate 15.

[0095] The number of light-emitting components 23 is at least one. For example, the laminated glass 1 has two light-emitting components 23, which are respectively disposed on opposite sides of the second glass plate 15. Optionally, the light source 231 includes a plurality of light-emitting diodes, which are arranged at intervals on one side of the second glass plate 15. Optionally, the light source 231 directly abuts against the light guide 232; or, the light source 231 is indirectly connected to the light guide 232 through other components. Specifically, the light emitted by the light source 231 can reach the light guide 232, and the light guide 232 can receive and guide the light from the light source 231 to the second glass plate 15, so that the laminated glass 1 has the function of an ambient light.

[0096] Furthermore, the light guide 232 abuts against the side of the second glass plate 15, and the light source 231 is located at the end of the light guide 232 away from the side of the second glass plate 15. The light source 231 and the light guide 232 are arranged side by side or approximately side by side on the side of the second glass plate 15. As shown in the figure, from left to right, the components are, in order, the light source 231, the light guide 232, and the second glass plate 15.

[0097] This embodiment, by limiting the positions of the light source 231, the light guide 232, and the second glass plate 15, not only avoids the light-emitting component 23 from covering the second glass plate 15, but also optimizes the positions of the light source 231 and the light guide 232, which is conducive to more light being able to shine onto the second glass plate 15.

[0098] Furthermore, the light-emitting component 23 also includes a display pattern layer 233, which is disposed on the second glass plate 15. The display pattern layer 233 is disposed on the outer surface or the inner surface of the second glass plate 15, that is, the display pattern layer 233 is disposed on the surface of the second glass plate 15 facing the first glass plate 11; or, it is disposed on the surface of the second glass plate 15 away from the first glass plate 11.

[0099] The display pattern layer 233 can be placed on the second glass plate 15 in various ways. Optionally, the display pattern layer 233 is formed by processing graphics on the second glass plate 15 through laser engraving or other processes; alternatively, the display pattern layer 233 is formed by screen printing ink graphics on the second glass plate 15; alternatively, the display pattern layer 233 is a scattering structure such as scattering particles that refract and reflect the light from the light source 231; alternatively, the display pattern layer 233 is a photoluminescent structure that obtains energy from the light emitted by the light source 231 and then excites visible light to present a luminescent pattern. The graphics can be the moon, a heart, an anime character, a natural landscape, an oil painting, etc.

[0100] Furthermore, the light-emitting component 23 also includes a cover 234, one end of which is connected to the protective layer 13, and the other end is connected to the side of the second glass plate 15 away from the first glass plate 11. The cover 234 forms a receiving cavity, and the light source 231 and the light guide 232 are disposed in the receiving cavity.

[0101] The cover 234 forms a cavity to house the light source 231 and the light guide 232, thereby covering the light source 231 and the light guide 232. Optionally, a protective layer 13 is bonded to one end of the cover 234, and a second glass plate 15 is bonded to the other end.

[0102] Please refer to Figure 6. In yet another embodiment, the laminated glass 1 further includes a low-emissivity layer 24, which is disposed on the side of the second glass plate 15 away from the second adhesive layer 14.

[0103] The low-emissivity layer 24 is used for heat insulation, thereby improving the comfort of the vehicle interior. The low-emissivity layer 24 is disposed on the outer surface of the second glass panel 15. Optionally, the low-emissivity layer 24 is a TCO (transparent conductive metal oxide) film layer. The low-emissivity layer 24 has an emissivity e, which satisfies the following condition: e ≤ 0.3, specifically, for example, 0.3, 0.25, 0.2, 0.15, or 0.1, etc., preferably, the emissivity e ≤ 0.25; more preferably, the emissivity e ≤ 0.2.

[0104] Please refer to Figure 7. When a steel ball with a total mass of 28g is dropped onto the surface of the first glass plate 11 away from the first adhesive layer 12, the impact resistance height of the laminated glass 1 is ≥2000mm. For example, it can be 2250mm, 2500mm, 2750mm, 3000mm, 3250mm, 3500mm, 3750mm, or 4000mm.

[0105] In summary, this application provides a laminated glass 1, which improves the structural strength of the laminated glass 1 by forming a strength protection structure, thereby reducing the probability of the laminated glass 1 breaking due to impact from external objects. Furthermore, this application also provides a protective layer 13 with anti-breakage function, which further reduces the probability of the laminated glass 1 breaking due to impact from external objects, and also reduces the risk of injury to occupants inside the vehicle from the breakage of the laminated glass 1, thereby improving the safety performance of the vehicle.

[0106] This application also provides a method for preparing the laminated glass 1 as described above, the method comprising:

[0107] S100 provides a first glass plate 11, a first adhesive layer 12, a protective layer 13, and a dimming functional layer 22. The first glass plate 11 has a surface compressive stress CS, which satisfies the following condition: CS≥90MPa.

[0108] S200, the first glass plate 11, the first adhesive layer 12, the functional layer and the protective layer 13 are sequentially stacked and a first lamination process is performed to obtain a first lamination assembly.

[0109] S300, providing a second adhesive layer 14 and a second glass plate 15.

[0110] S400, the first laminated assembly, the second adhesive layer 14, and the second glass plate 15 are sequentially stacked and a second lamination process is performed to obtain the laminated glass provided in this application as described above.

[0111] This embodiment first uses a first lamination process to obtain a first lamination group to form a strength protection structure, and then uses a second lamination process to obtain the laminated glass 1. The laminated glass 1 is prepared in segments, which helps to improve the structural strength of the strength protection structure, improve the connection performance between the strength protection structure, the second adhesive layer 14, and the second glass plate 15, and thus improve the overall structural strength of the laminated glass 1.

[0112] In one embodiment, the functional layer includes a dimming functional layer 22 disposed on the first adhesive layer 12. The first lamination process further includes:

[0113] A first adhesive sublayer 121 and a second adhesive sublayer 122 are provided;

[0114] The first glass plate 11, the first adhesive sub-layer 121, the dimming function layer 22, the second adhesive sub-layer 122, and the protective layer 13 are sequentially stacked and the first lamination process is performed; wherein, the first adhesive sub-layer 121 and the second adhesive sub-layer 122 constitute the first adhesive layer 12.

[0115] In another embodiment, the functional layer includes a heat-reflective layer 21, and the first lamination process further includes:

[0116] A heat-reflective layer 21 is formed on one side of the first glass plate 11;

[0117] The first glass plate 11, the first adhesive layer 12, the functional layer, and the protective layer 13 are sequentially stacked and a first lamination process is performed; wherein, the heat reflective layer 21 is disposed on the side of the first glass plate 11 facing the first adhesive layer 12.

[0118] In another embodiment, the step of performing the second lamination process further includes:

[0119] A low-emissivity layer 24 is formed on one side of the second glass plate 15;

[0120] The first laminated assembly, the second adhesive layer 14, and the second glass plate 15 are sequentially stacked and a second lamination process is performed; wherein, the low-emissivity layer 24 is disposed on the side of the second glass plate 15 away from the second adhesive layer 14.

[0121] The following is a detailed description of the manufacturing process of the laminated glass 1 provided in this application: First, the first glass plate 11 is placed at the bottom layer, and then the first adhesive sublayer 121, the sealing adhesive sublayer 123, the dimming functional layer 22, the second adhesive sublayer 122, and the protective layer 13 are positioned sequentially. Subsequently, the above-mentioned multiple layer structures are laminated, and the multiple layer structures are subjected to initial pressing and high pressure to ensure that the multiple layer structures are bonded to each other.

[0122] Subsequently, the second adhesive layer 14 and the second glass plate 15 are sequentially positioned onto the multiple layers of the assembled structure, and the glass structure is then bonded and cured through processes such as lamination. Then, the sealing element 16 and the light-emitting component 23 can be installed to obtain the laminated glass 1 provided in this application.

[0123] Furthermore, a heat-reflective layer 21 can be pre-set on the first glass plate 11 and a low-emissivity layer 24 can be pre-set on the second glass plate 15. Then, the first glass plate 11 and the second glass plate 15 are hot-bent and laminated to obtain a laminated glass 1 with a heat-reflective layer 21 and a low-emissivity layer 24.

[0124] This application also provides a vehicle, the vehicle including a body and laminated glass as described above, the laminated glass being disposed at an opening in the body.

[0125] The vehicle provided in this application, by adopting the laminated glass provided above, forms a strength protection structure to improve the structural strength of the laminated glass and reduce the probability of the laminated glass breaking due to impact from external objects; furthermore, this application also provides a protective layer with anti-breakage function, which further reduces the probability of the laminated glass breaking due to impact from external objects and reduces the risk of injury to occupants inside the vehicle due to the breakage of the laminated glass, thereby improving the safety performance of the vehicle.

[0126] To make the objectives and advantages of this application clearer, the effects of the laminated glass of this application will be further explained in detail below with reference to specific embodiments.

[0127] Strength test:

[0128] Comparative Examples 1-4 and Examples 1-3 are provided, wherein the heat-reflective layer is formed by a combination of three silver-plated layers. The specific film structures of Comparative Examples 1-4 and Examples 1-3 are shown below:

[0129] Comparative Example 1: 2.1mm first glass plate / heat reflective layer / 0.76mm adhesive layer / 3.1mm second glass plate / low emissivity layer

[0130] Comparative Example 2: 2.1mm first glass plate / heat reflective layer / 0.38mm first adhesive layer / 0.38mm EC dimming function layer / 0.38mm second adhesive layer / 2.1mm second glass plate

[0131] Comparative Example 3: 2.1mm first glass plate / heat reflective layer / 0.38mm first adhesive layer / 0.38mm PDLC dimming function layer / 0.76mm second adhesive layer / 2.1mm second glass plate

[0132] Comparative Example 4: 2.1mm first glass plate / heat reflective layer / 0.38mm first adhesive layer / 0.38mm EC dimming function layer / 0.76mm second adhesive layer / 2.1mm second glass plate / 0.38mm third adhesive layer / 2.1mm third glass plate

[0133] Example 1: 3.15mm first glass plate / heat reflective layer / 0.38mm first adhesive sublayer / 0.38mm EC dimming functional layer / 0.76mm second adhesive sublayer / 0.125mm PET protective layer / 0.38mm second adhesive layer / 2.1mm second glass plate

[0134] Example 2: 3.15mm first glass plate / heat reflective layer / 0.38mm first adhesive sublayer / 0.38mm PDLC dimming functional layer / 0.76mm second adhesive sublayer / 0.125mm PET protective layer / 0.38mm PVB second adhesive layer / 2.1mm second glass plate

[0135] Example 3: 1.1mm first glass plate / heat reflective layer / 0.38mm first adhesive sub-layer / 0.38mm PDLC dimming functional layer / 0.76mm second adhesive sub-layer / 0.125mm PET protective layer / 0.38mm PVB second adhesive layer / 2.1mm second glass plate

[0136] The impact resistance height of the laminated glass, the surface compressive stress of the first glass plate, and the state of whether the glass is broken were measured and observed, and the measurement results were recorded in Table 1.

[0137] Specifically, the impact resistance height of laminated glass was simulated using the impact of a 28g steel ball. The impact speed of the stone was simulated and converted to the impact height of a 28g steel ball, and the test was conducted at the maximum speed of 120 km / h.

[0138] Table 1: Performance parameters of laminated glass in Comparative Examples 1-4 and Examples 1-3

[0139] Please refer to Table 1 and Figure 8 together. Figure 8 shows the performance parameters of the laminated glass in Comparative Examples 1-4 and Examples 1-3. It should be noted that in Figure 8, the numbers 1-7 on the horizontal axis correspond to Comparative Example 1, Comparative Example 2, Comparative Example 3, Comparative Example 4, Example 1, Example 2, and Example 3, respectively.

[0140] As shown in Table 1 and Figure 8, the laminated glass provided in Comparative Examples 1-4 did not use a first glass plate with a surface compressive stress CS ≥ 90 MPa and did not have a protective layer, making the laminated glass provided in Comparative Examples 1-4 prone to breakage under impact from external objects. However, the laminated glass provided in Examples 1-3, by setting a first glass plate with a surface compressive stress CS ≥ 90 MPa and setting a protective layer, forms a strength protection structure with extremely high structural strength. The impact resistance height of the laminated glass is ≥ 2000 mm, and even as high as 3500 mm, which can reduce the probability of the laminated glass breaking due to impact from external objects, reduce the risk of injury to vehicle occupants from laminated glass breakage, and thus improve the safety performance of the vehicle.

[0141] Functional testing:

[0142] Comparative Examples 5-6 and Examples 4-5 are provided, wherein the heat-reflective layer is formed by a combination of three silver-plated layers. The specific film structures of Comparative Examples 5-6 and Examples 4-5 are shown below:

[0143] Comparative Example 5: 2.1mm first glass plate / 0.38mm first adhesive layer / 0.38mm EC dimming function layer / 0.76mm second adhesive layer / 2.1mm second glass plate

[0144] Comparative Example 6: 2.1mm first glass plate / 0.38mm PVB first adhesive layer / 0.38mm PDLC dimming function layer / 0.76mm second adhesive layer / 2.1mm second glass plate

[0145] Example 4: 3.15mm first glass plate / heat reflective layer / 0.38mm first adhesive sub-layer / 0.38mm EC dimming functional layer / 0.76mm second adhesive sub-layer / 0.125mm PET protective layer / 0.38mm PVB second adhesive layer / 2.1mm second glass plate

[0146] Example 5: 3.15mm first glass plate / heat reflective layer / 0.38mm first adhesive sublayer / 0.38mm PDLC dimming functional layer / 0.76mm second adhesive sublayer / 0.125mm PET protective layer / 0.38mm PVB second adhesive layer / 2.1mm second glass plate

[0147] The visible light transmittance TL1, TL2 and solar energy reflectance RE of the laminated glass were measured and calculated under both powered and unpowered conditions, and the measurement results were recorded in Table 2.

[0148] Table 2: Performance parameters of laminated glass in Comparative Examples 5-6 and Examples 4-5

[0149] As shown in Table 2, the laminated glass provided in Comparative Examples 5-6 lacks a protective layer and a heat-reflective layer, resulting in low solar energy reflectivity. This can easily lead to excessively high temperatures inside the vehicle, reducing interior comfort. However, the laminated glass provided in Examples 4-5, by incorporating a protective layer and a heat-reflective layer, exhibits higher solar energy reflectivity and lower visible light transmittance, which is beneficial for improving interior comfort and enhancing the user experience.

[0150] Unless otherwise stated or in case of conflict, the terms or phrases used in this application shall have the following meanings:

[0151] In this application, terms such as "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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0152] In this application, "one or more" refers to any one, any two, or any two or more of the listed items. "Several" refers to any two or more.

[0153] In this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.

[0154] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0155] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0156] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A laminated glass, characterized in that, The laminated glass includes a first glass plate, a first adhesive layer, a protective layer, a second adhesive layer, and a second glass plate stacked sequentially. The first glass plate has a surface compressive stress CS, which satisfies the following condition: CS≥90MPa. The first glass plate, the first adhesive layer, and the protective layer are used to form a strength protection structure, which is used to protect the second glass plate. The laminated glass further includes a functional layer, which is disposed between the first glass plate and the protective layer.

2. The laminated glass as described in claim 1, characterized in that, The width of the protective layer is less than or equal to the width of the first glass plate, and the width of the protective layer is greater than the width of the second glass plate.

3. The laminated glass as described in claim 2, characterized in that, The width of the first glass plate is equal to the width of the first adhesive layer, and the width of the second glass plate is equal to the width of the second adhesive layer; the width of the first adhesive layer is greater than the width of the protective layer, and the width of the second adhesive layer is less than the width of the protective layer.

4. The laminated glass as described in claim 1, characterized in that, The laminated glass also includes a sealing element, which is disposed on the side of the first glass plate, the first adhesive layer, and the protective layer, and is also disposed on the surface of the protective layer opposite to the first glass plate.

5. The laminated glass as described in claim 4, characterized in that, The seal includes a first part and a second part connected to each other. The first part covers the side of the first glass plate, the first adhesive layer, and the protective layer. The second part covers the surface of the protective layer opposite to the first glass plate and covers the peripheral portion of the protective layer.

6. The laminated glass as described in claim 5, characterized in that, The second part is spaced apart from the second adhesive layer, and the second part is spaced apart from the second glass plate.

7. The laminated glass as described in claim 4, characterized in that, The dimension of the seal covering the protective layer away from the surface of the first glass plate in the direction extending from the edge of the laminated glass to the center of the laminated glass ranges from 10 mm to 100 mm.

8. The laminated glass as described in claim 1, characterized in that, The functional layer includes a heat-reflective layer, which is disposed on the side of the first glass plate facing the first adhesive layer.

9. The laminated glass as described in claim 1, characterized in that, The functional layer includes a dimming functional layer, which is disposed on the first adhesive layer.

10. The laminated glass as described in claim 9, characterized in that, The first adhesive layer includes a first adhesive sublayer and a second adhesive sublayer. Along the stacking direction of the laminated glass, the first glass plate, the first adhesive sublayer, the dimming functional layer, the second adhesive sublayer, and the protective layer are stacked sequentially.

11. The laminated glass as claimed in claim 9, characterized in that, When the dimming functional layer is energized, the laminated glass has a visible transmittance TL1, which satisfies the following condition: 5% < TL1 ≤ 20%. When the dimming functional layer is in a power-off state, the laminated glass has a visible transmittance TL2, which satisfies the following condition: 0.1% ≤ TL2 ≤ 5%.

12. The laminated glass as claimed in claim 1, characterized in that, The laminated glass also includes a light-emitting component, which includes a light source and a light guide. The light source and the light guide are both located on the side of the second glass plate. The light source is connected to the light guide. The light source is used to emit light, and the light guide is used to guide the light emitted by the light source to the second glass plate.

13. The laminated glass as described in claim 12, characterized in that, The light guide abuts against the side of the second glass plate, and the light source is located at the end of the light guide away from the side of the second glass plate.

14. The laminated glass as claimed in claim 12, characterized in that, The light-emitting component further includes a display pattern layer, which is disposed on the second glass plate; The light-emitting component also includes a cover, one end of which is connected to the protective layer and the other end of which is connected to the side of the second glass plate away from the first glass plate. The cover forms a receiving cavity, and the light source and the light guide are disposed in the receiving cavity.

15. The laminated glass as claimed in claim 1, characterized in that, The laminated glass also includes a low-emissivity layer, which is disposed on the side of the second glass plate opposite to the second adhesive layer.

16. A method for preparing laminated glass as described in claim 1, characterized in that, The preparation method includes: A first glass plate, a first adhesive layer, a protective layer, and a functional layer are provided. The first glass plate has a surface compressive stress CS, which satisfies the following condition: CS≥90MPa. The first glass plate, the first adhesive layer, the functional layer, and the protective layer are sequentially stacked and arranged, and a first lamination process is performed to obtain a first laminated assembly. Provide a second adhesive layer and a second glass plate; The first laminated assembly, the second adhesive layer, and the second glass plate are sequentially stacked and arranged, and a second lamination process is performed to obtain the laminated glass as described in claim 1.

17. The method for preparing laminated glass as described in claim 16, characterized in that, The functional layer includes a dimming functional layer disposed on the first adhesive layer. The first lamination process further includes: Provide a first adhesive sublayer and a second adhesive sublayer; The first glass plate, the first adhesive sub-layer, the dimming functional layer, the second adhesive sub-layer, and the protective layer are sequentially stacked and the first lamination process is performed; wherein, the first adhesive sub-layer and the second adhesive sub-layer constitute the first adhesive layer.

18. The method for preparing laminated glass as described in claim 16, characterized in that, The functional layer includes a heat-reflective layer, and the first lamination process further includes: A heat-reflective layer is formed on one side of the first glass plate; The first glass plate, the first adhesive layer, the functional layer, and the protective layer are sequentially stacked and a first lamination process is performed; wherein, the heat reflective layer is disposed on the side of the first glass plate facing the first adhesive layer.

19. The method for preparing laminated glass as described in claim 16, characterized in that, The second lamination process also includes: A low-emissivity layer is formed on one side of the second glass plate; The first laminated assembly, the second adhesive layer, and the second glass plate are sequentially stacked and a second lamination process is performed; wherein, the low-emissivity layer is disposed on the side of the second glass plate opposite to the second adhesive layer.

20. A vehicle, characterized in that, The vehicle includes a body and laminated glass as described in any one of claims 1-15, the laminated glass being disposed at an opening in the body.

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