Laminated glass and vehicles

Abstract

This application relates to a laminated glass and a vehicle. The laminated glass includes: a first glass plate, a first adhesive layer, a dimming functional layer, a second adhesive layer, and a second glass plate, which are stacked sequentially. The transmittance of the combined structure of the first glass plate and the first adhesive layer is defined as T1, and the transmittance of the combined structure of the second glass plate and the second adhesive layer is defined as T2. T1 is set to 15% to 50%, and T2 is set to 15% to 50%. Both transmittance T1 and T2 are relatively low. When observing the laminated glass in both internal and external environments, this neutralizes the haze of the dimming functional layer, making the white haze of the dimming functional layer less noticeable. This improves the appearance of white fogging and enhances the consistency of internal and external observation results of the laminated glass, thus providing a better two-way observation experience for passengers. Furthermore, both transmittance T1 and T2 are greater than 15%, preventing them from being too low and ensuring that the overall transmittance of the laminated glass is not too low, which would affect the dimming effect.

Description

Technical Field

[0001] This application relates to the field of glass technology, and in particular to a laminated glass and a vehicle. Background Technology

[0002] Car windows are an essential component of automobiles. To ensure driving safety, car window glass requires high strength, rigidity, and other safety performance parameters. Car window glass is typically designed as laminated glass, consisting of two or more inorganic glass sheets and one or more functional film layers in between. Laminated glass offers excellent safety and sound insulation, and is used in car windows such as windshields, rear windshields, side windows, and sunroofs.

[0003] In related technologies, when the functional film layer is, for example, a dimming functional layer, it is connected to two glass substrates via adhesive layers. To improve the appearance of glass transmission, the transmittance of components on one side of the dimming functional layer is typically made greater or less than that on the other side. Transmittance is short for visible light transmittance, and the ratio of transmittance values ​​is typically 2 to 3. However, this results in inconsistencies between the internal and external views of the laminated glass, leading to poor observational consistency. Summary of the Invention

[0004] Therefore, it is necessary to overcome the shortcomings of the existing technology and provide a laminated glass and vehicle that can improve the consistency of the internal and external observation results of the laminated glass, and improve the appearance consistency of laminated glass with different configurations of the same vehicle model.

[0005] A laminated glass comprises: a first glass plate, a first adhesive layer, a dimming functional layer, a second adhesive layer, and a second glass plate stacked sequentially; the first glass plate faces the external environment, and the second glass plate faces the internal environment; the transmittance of the combined structure of the first glass plate and the first adhesive layer is set as T1, and the transmittance of the combined structure of the second glass plate and the second adhesive layer is set as T2; wherein T1 is set to 15% to 50%, and T2 is set to 15% to 50%.

[0006] In one embodiment, T1 is set to 20% to 30%, and T2 is set to 20% to 30%.

[0007] In one embodiment, the difference between T1 and T2 is set to be within 10%.

[0008] In one embodiment, the transmittance TL1 of the first adhesive layer is set to 15% to 50%; the transmittance TL2 of the second adhesive layer is set to 15% to 50%.

[0009] In one embodiment, TL1 is set to 20% to 30%, and TL2 is set to 20% to 30%.

[0010] In one embodiment, the difference between TL1 and TL2 is within 10%.

[0011] In one embodiment, the transmittance of the laminated glass when the dimming functional layer is in a high transmittance state is set as TLmax, and the reflectance of the entire side of the laminated glass facing the internal environment is set as RL, wherein the ratio of TLmax to RL is 1 to 4.

[0012] In one embodiment, the ratio of TLmax to RL is 2 to 4.

[0013] In one embodiment, the reflectivity of the side of the second glass plate facing the internal environment is set as RL, where RL ≤ 5%.

[0014] In one embodiment, RL ≤ 3%.

[0015] In one embodiment, the transmittance of the first glass plate is set to TL3, wherein TL3 ≥ 70%.

[0016] A means of transportation, the means of transportation including the laminated glass.

[0017] In the aforementioned laminated glass, the transmittance T1 of the combined structure of the first glass panel and the first adhesive layer is relatively low, ranging from 15% to 50%. This neutralizes the haze of the dimming layer when observed in an external environment, resulting in less noticeable white haze and improving the appearance of white fogging. Similarly, the transmittance T2 of the combined structure of the second glass panel and the second adhesive layer is also relatively low, ranging from 15% to 50%. This neutralizes the haze of the dimming layer when observed in an internal environment, resulting in less noticeable white fogging and improving the appearance of white fogging. In other words, the transmittance inside and outside the dimming film is essentially the same, improving the consistency of internal and external observation results of the laminated glass, thus providing a better two-way observation experience for drivers and passengers. Furthermore, it improves the appearance consistency of laminated glass across different configurations of the same vehicle model. In addition, both transmittance T1 and transmittance T2 are greater than or equal to 15%, which is not too low. This ensures that the overall transmittance of the laminated glass is not too low and will affect the dimming effect. Furthermore, there will be no obvious reflection on the fourth side of the laminated glass. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a laminated glass according to an embodiment of this application.

[0019] 10. First glass plate; 11. First side; 12. Second side; 20. First adhesive layer; 30. Dimming function layer; 40. Second adhesive layer; 50. Second glass plate; 51. Third side; 52. Fourth side; 60. First light blocking layer; 70. Second light blocking layer. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] As mentioned in the background art, the state of laminated glass observed from the inside and outside of the related art is different, resulting in poor consistency of observation results. The inventors have discovered that the reason for this problem is that the dimming functional layer usually uses PDLC (polymer dispersed liquid crystal) film material. By changing the haze, the transmittance is changed accordingly. When the dimming functional layer has low transmittance, it will appear as a white haze. If the transmittance of the components on the side of the dimming functional layer closer to the external environment is relatively high, the white haze defect is easily observed on the external environment side, while it is not observed on the internal environment side due to low transmittance. Conversely, if the transmittance of the components on the side of the dimming functional layer closer to the internal environment is relatively high, the white haze defect is easily observed on the internal environment side, while it is not observed on the external environment side due to low transmittance.

[0022] For the reasons mentioned above, this application provides a laminated glass and a vehicle that can improve the consistency of internal and external observation results of the laminated glass, and can improve the appearance consistency of laminated glass with different configurations of the same vehicle model.

[0023] See Figure 1 , Figure 1 A schematic diagram of a laminated glass structure according to an embodiment of this application is shown. The laminated glass provided in this embodiment includes: a first glass plate 10, a first adhesive layer 20, a dimming functional layer 30, a second adhesive layer 40, and a second glass plate 50, which are sequentially stacked. The first glass plate 10 faces the external environment, and the second glass plate 50 faces the internal environment. The transmittance of the combined structure of the first glass plate 10 and the first adhesive layer 20 is defined as T1, and the transmittance of the combined structure of the second glass plate 50 and the second adhesive layer 40 is defined as T2. Wherein, T1 is set to 15% to 50%, and T2 is set to 15% to 50%.

[0024] In the aforementioned laminated glass, the transmittance T1 of the combined structure of the first glass plate 10 and the first adhesive layer 20 is relatively low, ranging from 15% to 50%. This neutralizes the haze of the dimming layer 30 when observed in an external environment, making the white haze of the dimming layer 30 less noticeable and improving the appearance of white fogging. Similarly, the transmittance T2 of the combined structure of the second glass plate 50 and the second adhesive layer 40 is also relatively low, ranging from 15% to 50%. This neutralizes the haze of the dimming layer 30 when observed in an internal environment, making the white haze of the dimming layer 30 less noticeable and improving the appearance of white fogging. In other words, the transmittance inside and outside the dimming film is essentially the same, improving the consistency of internal and external observation results of the laminated glass, thus providing a better two-way observation experience for drivers and passengers. Furthermore, it improves the appearance consistency of laminated glass with different configurations of the same vehicle model. In addition, both transmittance T1 and transmittance T2 are greater than or equal to 15%, which is not too low. This ensures that the overall transmittance of the laminated glass is not too low and will affect the dimming effect. Furthermore, there will be no obvious reflection on the fourth surface 52 of the laminated glass.

[0025] In some embodiments, when the laminated glass is observed in an external environment, since the internal environment is relatively dark, the main focus is on the reflection state of the laminated glass. Due to the low transmittance of the first adhesive layer 20, it serves to shield against white fogging, resulting in a good appearance. When the laminated glass is observed in an internal environment, the overall transmission effect of the laminated glass is mainly displayed. At this time, the light from the external environment needs to pass through two layers of low-transmittance adhesive layers, namely the first adhesive layer 20 and the second adhesive layer 40, resulting in relatively low light penetration. This also helps to improve the appearance problem of white fogging in the internal environment. Therefore, the laminated glass can have a good and consistent appearance experience regardless of whether it is observed in an internal or external environment.

[0026] In some embodiments, the transmittance T1 includes, but is not limited to, 15%, 20%, 22%, 25%, 26%, 28%, 30%, 35%, 40%, 45%, or 50%. Furthermore, the transmittance T2 includes, but is not limited to, 15%, 20%, 22%, 25%, 26%, 28%, 30%, 35%, 40%, 45%, or 50%.

[0027] In one embodiment, T1 is set to 20% to 30%, and T2 is set to 20% to 30%. This achieves a good consistency in transmittance between the inside and outside of the dimming film, while ensuring that the overall transmittance of the laminated glass is sufficiently high, resulting in a good dimming effect and thus a high overall performance.

[0028] In one embodiment, the difference between T1 and T2 is set to be within 10%. This relatively small difference between T1 and T2 improves the consistency of internal and external observations of the laminated glass, thus providing occupants with a better two-way viewing experience.

[0029] Among them, the smaller the difference between T1 and T2, the better the consistency between the internal and external observation results of the laminated glass.

[0030] In some embodiments, the difference between T1 and T2 includes, but is not limited to, 10%, 8%, 6%, 5%, 4%, 3%, 2%, 1%, 0%, etc. Of course, the difference between T1 and T2 can also be flexibly adjusted and set to more than 10% according to actual needs, such as 15%, 20%, 25%, 30%, etc.

[0031] In some embodiments, the first adhesive layer 20 can be a single layer or a multi-layer composite adhesive layer, which can be flexibly adjusted and set according to actual needs; similarly, the second adhesive layer 40 can be a single layer or a multi-layer composite adhesive layer, which can be flexibly adjusted and set according to actual needs.

[0032] In one embodiment, the transmittance TL1 of the first adhesive layer 20 is set to 15% to 50%. Furthermore, the transmittance TL2 of the second adhesive layer 40 is set to 15% to 50%. Thus, by adjusting and controlling the transmittance TL1 of the first adhesive layer 20 to 15% to 50%, the transmittance T1 can be controlled within the range of 15% to 50%, thereby better masking the white fogging visual effect caused by high haze in a certain state of the dimming functional layer 30 when viewed from the outside. Similarly, by adjusting and controlling the transmittance TL2 of the second adhesive layer 40 to 15% to 50%, the transmittance T2 can be controlled within the range of 15% to 50%, thereby better masking the white fogging visual effect caused by high haze in a certain state of the dimming functional layer 30 when viewed from the inside.

[0033] In one embodiment, the materials and thicknesses of the first adhesive layer 20 and the second adhesive layer 40 are independently set and adjusted according to actual needs, as long as their respective transmittance meets preset requirements. The materials of the first adhesive layer 20 and the second adhesive layer 40 can be the same or different, including but not limited to PVB, EVA, TPU, or SGP materials. Furthermore, the thicknesses of the first adhesive layer 20 and the second adhesive layer 40 can be the same or different, including but not limited to 0.38mm, 0.76mm, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, or 2mm, which can be flexibly adjusted and set according to actual needs.

[0034] In some embodiments, the transmittance TL1 includes, but is not limited to, 15%, 20%, 22%, 25%, 26%, 28%, 30%, 35%, 40%, 45%, or 50%. Furthermore, the transmittance TL2 includes, but is not limited to, 15%, 20%, 22%, 25%, 26%, 28%, 30%, 35%, 40%, 45%, or 50%.

[0035] In one embodiment, TL1 is set to 20% to 30%, and TL2 is set to 20% to 30%. This achieves a good consistency in transmittance between the inside and outside of the dimming film, while ensuring that the overall transmittance of the laminated glass is sufficiently high, resulting in a good dimming effect and thus a high overall performance.

[0036] In one embodiment, the difference between TL1 and TL2 is within 10%. This relatively small difference improves the consistency of internal and external observations of the laminated glass, providing occupants with a better two-way viewing experience.

[0037] Among them, the smaller the difference between TL1 and TL2, the smaller the difference between T1 and T2 can be, and thus the better the consistency of the internal and external observation results of the laminated glass.

[0038] In some embodiments, the difference between TL1 and TL2 includes, but is not limited to, 10%, 8%, 6%, 5%, 4%, 3%, 2%, 1%, 0%, etc. Of course, the difference between TL1 and TL2 can also be flexibly adjusted and set to more than 10% according to actual needs, such as 15%, 20%, 25%, 30%, etc.

[0039] In one embodiment, when the dimming functional layer 30 is in a high-transmittance state, the transmittance of the laminated glass is set to TLmax, and the reflectance of the entire side of the laminated glass facing the internal environment is set to RL, that is, the reflectance of the side of the second glass plate 50 facing the internal environment is set to RL, wherein the ratio of TLmax to RL is between 1 and 4. This enhances the overall transparency of the laminated glass in the high-transmittance state, because transmitted light is greater than reflected light, and the mirror effect does not affect the observation of passengers inside the vehicle. Furthermore, if the ratio of TLmax to RL is too large, for example greater than 4, then when the dimming functional layer 30 is in the off state, a noticeable white haze effect occurs in the entire laminated glass.

[0040] Here, "off state" refers to the state of the dimming functional layer 30 when it is in a low transmittance state. Specifically, for the normal dimming functional layer 30, when the dimming functional layer 30 is powered on, it is in a high transmittance state; when the dimming functional layer 30 is powered off, it is in the off state. Conversely, for the inverse dimming functional layer 30, when the dimming functional layer 30 is powered on, it is in the off state; when the dimming functional layer 30 is powered off, it is in a high transmittance state.

[0041] In one embodiment, the ratio of TLmax to RL is 2 to 4.

[0042] In one embodiment, the ratio of TLmax to RL is 2.5 to 4.

[0043] In one embodiment, the reflectivity of the side of the second glass plate 50 facing the interior environment is set to RL, where RL ≤ 5%. This reduces reflection when viewed from inside the vehicle, resulting in a better reflection effect and mitigating aesthetic issues related to the glass surface. This problem is also solved thanks to the use of a low-transmittance adhesive layer. The reflection on the fourth surface 52 of the laminated glass mainly originates from the superposition of reflections at different interfaces. Due to the use of a low-transmittance adhesive layer, light entering the first glass plate 10 from the inside is absorbed sequentially by the first adhesive layer 20 and the second adhesive layer 40 (absorbing once and then being reflected by a medium before being absorbed again by the gray film), ultimately reducing its contribution to the reflectivity of the laminated glass.

[0044] In one embodiment, RL ≤ 3%, specifically 3%, 2%, 1%, etc. Thus, the smaller the RL, the worse the reflective effect of the glass mirror, and the better the appearance problem of the glass mirror can be solved.

[0045] In one embodiment, the first glass plate 10 and the second glass plate 50 are each independently arranged and are made of materials including but not limited to glass and PC, as long as their respective transmittance meets the preset requirements.

[0046] In one embodiment, the transmittance TL3 of the first glass plate 10 is ≥70%. Thus, the first glass plate 10 has high transmittance, absorbs less heat, and provides better heat insulation. The transmittance TL3 includes, but is not limited to, 70%, 72%, 75%, 80%, 82%, 85%, 90%, etc. Of course, the transmittance TL3 can also be set to any value less than 70%.

[0047] In some embodiments, the surface of the first glass panel 10 facing the dimming functional layer 30 is surface-treated to reflect heat and provide a comfortable in-vehicle experience.

[0048] In some embodiments, the transmittance TL4 of the second glass plate 50 can be greater than, the same as, or less than the transmittance TL3. It can be flexibly adjusted and set according to actual needs, including but not limited to 30%, 40%, 50%, 60%, 70%, 80%, 90%, etc., as long as it can satisfy the requirement that the transmittance T2 of the structure after being combined with the second adhesive layer 40 meets the requirement of 15% to 50%.

[0049] In one embodiment, the dimming functional layer 30 includes PDLC. Thus, the dimming functional layer 30 using PDLC material has a high haze level in a certain state, exceeding 80%. The PDLC is generally preferably white PDLC, or dye PDLC, or reverse PDLC, or steady-state PDLC, etc., and can be flexibly adjusted and set according to actual needs, without limitation here.

[0050] In some embodiments, the dimming functional layer 30 is not limited to being configured as PDLC, but may also be configured as one or more combinations of LC film, PDLC film, GHLC film, PNLC film, PSLC film, PILC film, etc.

[0051] In some embodiments, the first glass plate 10 has a first surface 11 and a second surface 12 facing away from each other, with the first surface 11 facing the external environment. The second glass plate 50 has a third surface 51 and a fourth surface 52 facing away from each other, with the second surface 12 and the third surface 51 facing each other. A first adhesive layer 20 is connected to the second surface 12, and a second adhesive layer 40 is connected to the third surface 51. The fourth surface 52 faces the internal environment.

[0052] In some embodiments, a first light-blocking layer 60 is provided on the second surface 12 of the first glass plate 10. The first light-blocking layer 60 is located around the periphery of the second surface 12. The visible light transmittance of the first light-blocking layer 60 is, for example, ≤50%, including but not limited to 50%, 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, 0%, etc., and it can serve as a light-blocking layer, which is equivalent to a black border. Furthermore, a second light-blocking layer 70 is provided on the third surface 51 or the fourth surface 52 of the second glass plate 50. The second light-blocking layer 70 is located around the periphery of the third surface 51 or the fourth surface 52. The visible light transmittance of the second light-blocking layer 70 is, for example, ≤50%, including but not limited to 50%, 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, 0%, etc., and it can serve as a light-blocking layer, which is equivalent to a black border.

[0053] In some embodiments, the laminated glass further includes a scratch-resistant coating and / or a splash-resistant film layer connected to the first glass plate 10. This enables scratch and splash protection, thus diversifying the product's functionality.

[0054] In one embodiment, the anti-scratch coating is, but is not limited to, being applied to the first surface 11 of the first glass plate 10 by means of spraying, pasting, or other processing methods.

[0055] In one embodiment, the anti-splash film layer is, but is not limited to, attached to the first surface 11 of the first glass plate 10 by means of spraying, pasting, or other processing methods.

[0056] Please see Figure 1 In one embodiment, a means of transportation includes, but is not limited to, automobiles, buses, cars, public transport vehicles, coaches, trucks, jeeps, trains, high-speed trains, etc. The means of transportation includes laminated glass from any of the above embodiments. Laminated glass includes, but is not limited to, the vehicle's windshield, side windows, rear window, and sunroof, etc.

[0057] In the aforementioned vehicles, the transmittance T1 of the combined structure of the first glass panel 10 and the first adhesive layer 20 is relatively low, ranging from 15% to 50%. This neutralizes the haze of the dimming layer 30 when observing the laminated glass in an external environment, making the white haze of the dimming layer 30 less noticeable and improving the appearance of white fogging. Similarly, the transmittance T2 of the combined structure of the second glass panel 50 and the second adhesive layer 40 is also relatively low, ranging from 15% to 50%. This neutralizes the haze of the dimming layer 30 when observing the laminated glass in an internal environment, making the white haze of the dimming layer 30 less noticeable and improving the appearance of white fogging. In other words, the transmittance inside and outside the dimming film is essentially the same, improving the consistency of internal and external observation results of the laminated glass, thus providing passengers with a better two-way observation experience. Furthermore, it improves the appearance consistency of laminated glass with different configurations of the same vehicle model. In addition, both transmittance T1 and transmittance T2 are greater than or equal to 15%, which is not too low. This ensures that the overall transmittance of the laminated glass is not too low and will affect the dimming effect. Furthermore, there will be no obvious reflection on the fourth surface 52 of the laminated glass.

[0058] Please refer to Table 1 below, which shows the different performance evaluations of laminated glass when different process parameters are set.

[0059] The evaluation is indicated by "+", with more "+" indicating a better surface finish. As can be seen, the overall evaluation of the embodiments in this application is all above 3 "+", indicating a good overall appearance. While the comparative examples also have cases with overall "++" performance, they still suffer from inconsistencies between the inner and outer layers (due to the use of different first adhesive layers 20 and 40). Furthermore, different colored films are required in actual production, and TL1 and TL2 are difficult to distinguish in the semi-finished product state, increasing production control and potentially leading to misoperation and reversed use of the inner and outer layers.

[0060] Table 1: Evaluation Criteria

[0061]

[0062] In one specific embodiment, the details are not elaborated in Table 2 below. The dimming functional layer 30, for example, uses a white PDLC dimming film. When powered on, its transmittance is at its highest state, ~85%, and when powered off, it appears as a white haze. The first glass plate 10 uses 2.1mm thick transparent glass, and to achieve better heat insulation, a silver functional layer is sputtered onto the first glass plate 10 to achieve a heat insulation effect, with a transmittance (TL1) of ~86%. The first adhesive layer 20 and the second adhesive layer 40 each use 0.76mm thick gray PVB with a nominal transmittance of 27%, and actual TL2 & TL3 are approximately 29%. The second glass plate 50 uses 2.1mm thick transparent glass. To achieve better reflection, an anti-reflection treatment (coating or layering) is applied to the fourth surface 52 of the second glass plate 50, with a transmittance of approximately 88%. The final assembly has a reflectivity of approximately 2.5% and a TLmax of approximately 5%. Whether viewed from inside or outside the vehicle, the white haze effect is slight due to the shielding effect of PVB, and it maintains a relatively high level of transparency and clarity when the vehicle is open.

[0063] Table 2 shows the specific values ​​for different embodiments and comparative examples.

[0064]

[0065] As shown in the table above, when TL1 is set to 15% to 50%, TL2 is set to 15% to 50%, and TLmax / RL is set to 1 to 4, the overall evaluation is good. Furthermore, when TL1 is set to 20% to 30%, TL2 is set to 20% to 30%, and TLmax / RL is set to 2 to 4, or even 2.5 to 4, the overall evaluation can be further improved.

[0066] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A laminated glass, characterized in that, The laminated glass comprises: a first glass plate, a first adhesive layer, a dimming functional layer, a second adhesive layer, and a second glass plate stacked sequentially; the first glass plate faces the external environment, and the second glass plate faces the internal environment; the transmittance of the combined structure of the first glass plate and the first adhesive layer is set as T1, and the transmittance of the combined structure of the second glass plate and the second adhesive layer is set as T2; wherein, T1 is set to 15% to 50%, and T2 is set to 15% to 50%.

2. The laminated glass according to claim 1, characterized in that, T1 is set to 20% to 30%, and T2 is set to 20% to 30%.

3. The laminated glass according to claim 1, characterized in that, The difference between T1 and T2 is set to be within 10%.

4. The laminated glass according to claim 1, characterized in that, The transmittance TL1 of the first adhesive layer is set to 15% to 50%; the transmittance TL2 of the second adhesive layer is set to 15% to 50%.

5. The laminated glass according to claim 4, characterized in that, TL1 is set to 20% to 30%, and TL2 is set to 20% to 30%.

6. The laminated glass according to claim 4, characterized in that, The difference between TL1 and TL2 is within 10%.

7. The laminated glass according to claim 1, characterized in that, When the dimming functional layer is in a high transmittance state, the transmittance of the laminated glass is set as TLmax, and the reflectance of the entire side of the laminated glass facing the internal environment is set as RL, wherein the ratio of TLmax to RL is 1 to 4.

8. The laminated glass according to claim 7, characterized in that, The ratio of TLmax to RL is 2 to 4.

9. The laminated glass according to claim 1, characterized in that, The reflectivity of the side of the second glass plate facing the internal environment is set as RL, where RL ≤ 5%.

10. The laminated glass according to claim 1, characterized in that, The transmittance of the first glass plate is set as TL3, where TL3 ≥ 70%.

11. A means of transportation, characterized in that, The vehicle includes laminated glass as described in any one of claims 1 to 10.

Images