Photochromic glass and vehicles

Abstract

This application relates to a photochromic dimming glass and a vehicle. The photochromic dimming glass includes a first glass plate, a photochromic 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. Furthermore, the photochromic dimming glass also includes an ultraviolet (UV) quenching element. The UV quenching element is made of a transparent material and is disposed on the side of the photochromic layer facing the first glass plate. The area of ​​the orthographic projection area of ​​the UV quenching element on the photochromic layer is smaller than the area of ​​the photochromic layer. In sufficiently bright conditions, such as sunny or cloudy days, the color and transmittance of the non-adjustable dimming area remain unchanged, while the remaining area of ​​the UV quenching element on the photochromic layer darkens under light intensity or strong UV radiation. This allows for a more intuitive perception of the photochromic dimming changes compared to the non-adjustable dimming area, thereby enhancing product performance.

Description

Technical Field

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

[0002] With the rapid development of glass technology, smart glass is widely used in various fields, including but not limited to smart windows, rearview mirrors, sunglasses, and displays used in spacecraft, high-speed trains, automobiles, and buildings. Smart glass is a light-controlling device, primarily consisting of a dimming film placed between two layers of transparent glass. Types of dimming films include suspended particle dimming films, polymer-dispersed liquid crystal dimming films, electrochromic dimming films, thermochromic dimming films, and photochromic dimming films. For photochromic dimming glass containing a photochromic dimming film, the main principle of photochromic dimming is that the photosensitive material darkens when the ultraviolet light is strong and brightens when the ultraviolet light is weak.

[0003] In related technologies, to avoid the aesthetic defects caused by boundary lines, photochromic dimming glass typically uses full-surface photochromic dimming. However, since the photochromic dimming of photochromic dimming glass requires a change process of several seconds or more, that is, it is not an instantaneous change, the full-surface photochromic dimming process is difficult to be perceived by the naked eye, making it almost impossible for users to perceive whether the dimming change has occurred. Summary of the Invention

[0004] Therefore, it is necessary to overcome the shortcomings of existing technologies and provide a photochromic dimming glass and vehicle that can easily detect changes in photochromic dimming, thereby improving product performance.

[0005] A photochromic color-changing light-emitting glass, the photochromic color-changing light-emitting glass comprising:

[0006] A first glass plate, a photochromic layer, and a second glass plate are stacked sequentially; the first glass plate faces the external environment, and the second glass plate faces the internal environment; and an ultraviolet (UV) eliminator is provided, wherein the UV eliminator is made of a transparent material and is disposed on the side of the photochromic layer facing the first glass plate. The area of ​​the orthographic projection area of ​​the UV eliminator on the photochromic layer is smaller than the area of ​​the photochromic layer, and the wavelength range to which the UV eliminator is used to isolate covers the wavelength range in which the photochromic layer is triggered to change color.

[0007] In one embodiment, the ultraviolet quenching element is used to block the 380nm~410nm wavelength band, and the wavelength range in which the photochromic layer is triggered to change color is 380nm~410nm.

[0008] In one embodiment, the photochromic dimming glass includes a non-adjustable dimming area and an adjustable dimming area connected to the non-adjustable dimming area; the non-adjustable dimming area corresponds to the location area of ​​the ultraviolet elimination element; the transmittance of the adjustable dimming area when it darkens is set to TL1, the transmittance of the non-adjustable dimming area is set to TL2, and (TL2-TL1) / TL1≥50%.

[0009] In one embodiment, (TL2-TL1) / TL1 is 100% to 300%.

[0010] In one embodiment, TL1 ≤ 50%.

[0011] In one embodiment, the ultraviolet quenching element is disposed at the central portion of the photochromic layer; and / or, the ultraviolet quenching element is configured as a plurality and disposed at intervals on the photochromic layer.

[0012] In one embodiment, the photochromic layer is a photochromic adhesive film, which is connected to the first glass plate and the second glass plate respectively.

[0013] In one embodiment, the photochromic color-changing glass further includes a first adhesive layer disposed between the photochromic layer and the first glass plate, and / or a second adhesive layer disposed between the photochromic layer and the second glass plate.

[0014] In one embodiment, the first glass plate has a first side and a second side arranged opposite to each other, with the first side facing the external environment; the second glass plate has a third side and a fourth side arranged opposite to each other; the second side and the third side are arranged opposite to each other, and the photochromic layer is connected to the second side and the third side respectively; the fourth side faces the internal environment;

[0015] Wherein, a first light-blocking layer is provided on the second surface of the first glass plate, the first light-blocking layer is located at the periphery of the second surface, and the visible light transmittance of the first light-blocking layer is ≤50%; and / or,

[0016] A second light-blocking layer is provided on the third or fourth surface of the second glass plate. The second light-blocking layer is located around the periphery of the third or fourth surface, and the visible light transmittance of the second light-blocking layer is ≤50%.

[0017] A means of transportation, the means of transportation including the aforementioned photochromic color-changing glass.

[0018] The aforementioned photochromic dimming glass and vehicles, because an ultraviolet (UV) eliminator is provided on the side of the photochromic layer facing the first glass plate, this UV eliminator eliminates UV light, making the area on the photochromic dimming glass corresponding to the UV eliminator a non-adjustable dimming area. The remaining areas on the photochromic layer with the UV eliminator, which can normally receive UV light under strong light, are adjustable dimming areas. Thus, in scenarios with weak light or UV intensity, such as at night or dusk, the color and transmittance of the non-adjustable and adjustable dimming areas remain consistent, with no actual color difference in the surrounding transition, improving the consistency of the product's appearance. In scenarios with sufficiently strong light, the color and transmittance of the non-adjustable dimming area remain unchanged, while the remaining areas on the photochromic layer with the UV eliminator darken under strong light or UV radiation. This allows for a more intuitive perception of the photochromic dimming changes compared to the non-adjustable dimming area, thereby enriching the product's performance. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a photochromic color-changing glass according to an embodiment of this application.

[0020] Figure 2 This is a structural diagram of a photochromic color-changing glass according to another embodiment of this application.

[0021] Figure 3 This is a structural diagram of a photochromic color-changing glass according to another embodiment of this application.

[0022] Figure 4 This is a structural diagram of a photochromic color-changing glass according to another embodiment of this application.

[0023] Figure 5 for Figure 1 The diagram shows the state of the structure in a scene with insufficient light.

[0024] Figure 6 for Figure 1 The diagram shows the state of the structure under sufficiently bright light.

[0025] 10. First glass plate; 11. First side; 12. Second side; 20. Photochromic layer; 30. Second glass plate; 31. Third side; 32. Fourth side; 40. Ultraviolet eliminator; 51. Non-adjustable photochromic area; 52. Adjustable photochromic area; 53. Black edge; 60. First adhesive layer; 70. Second adhesive layer; 80. First light blocking layer; 90. Second light blocking layer. Detailed Implementation

[0026] 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.

[0027] See Figure 1 , Figure 5 and Figure 6 This application provides an embodiment of a photochromic color-changing light-emitting glass, comprising: a first glass plate 10, a photochromic layer 20, and a second glass plate 30 stacked sequentially. The first glass plate 10 faces the external environment, and the second glass plate 30 faces the internal environment. When the photochromic color-changing light-emitting glass is installed on a vehicle, the external environment is the outside of the vehicle, and the internal environment is the inside of the vehicle. Furthermore, the photochromic color-changing light-emitting glass also includes an ultraviolet (UV) extinguishing element 40. The UV extinguishing element 40 is made of a transparent material. "Transparent" in "transparent material" means that the transmittance in the visible spectrum is greater than 30%, preferably greater than 50%, more preferably greater than 75%, and particularly greater than 85%. The UV extinguishing element 40 is disposed on the side of the photochromic layer 20 facing the first glass plate 10, and the area of ​​the orthographic projection region of the UV extinguishing element 40 on the photochromic layer 20 is smaller than the area of ​​the photochromic layer 20. The UV extinguishing element 40 is used to isolate a wavelength range covering the wavelength range in which the photochromic layer 20 is triggered to change color. The ultraviolet (UV) eliminator 40 includes, but is not limited to, filtering UV light by absorbing UV light and / or filtering UV light by reflecting it. Furthermore, the outer contour shape of the UV eliminator 40 includes, but is not limited to, various regular shapes such as circles, ovals, and polygons, as well as other irregular shapes, which can be flexibly adjusted and set according to actual needs. The pattern shape displayed by the photochromic color-changing glass under strong light is the outer contour shape of the UV eliminator 40. Therefore, by adjusting and selecting the outer contour shape of the UV eliminator 40, the pattern shape displayed by the photochromic color-changing glass under strong light can be adjusted and selected. Specifically, when the UV eliminator 40 is set as various symbols such as text, letters, numbers, and graphics, the pattern shape displayed by the photochromic color-changing glass under strong light will correspondingly be text, letters, numbers, graphics, or other symbols.

[0028] The aforementioned photochromic color-changing glass has an ultraviolet (UV) eliminator 40 on the side of the photochromic layer 20 facing the first glass plate 10. This UV eliminator 40 eliminates UV light, making the area on the photochromic color-changing glass corresponding to the UV eliminator 40 a non-adjustable color-changing area 51. The remaining areas on the photochromic layer 20 with the UV eliminator 40, which can normally receive UV light under strong light, are adjustable color-changing areas 52. As can be seen, please refer to... Figure 1 and Figure 5 In scenarios with low light or UV intensity, such as at night or dusk, the color and transmittance of the non-adjustable color-changing area 51 and the adjustable color-changing area 52 remain consistent, with no color difference in the actual surrounding transition, thus improving the consistency of the product's appearance; please refer to Figure 1 and Figure 6 In scenes with sufficient light, such as sunny or cloudy days, the color and transmittance of the non-adjustable color-changing area 51 remain unchanged, while the remaining areas of the ultraviolet elimination element 40 on the photochromic layer 20 darken under the influence of light intensity or strong ultraviolet radiation. Thus, in contrast to the non-adjustable color-changing area 51, the photochromic dimming change can be intuitively perceived, thereby enriching the product performance.

[0029] In one embodiment, the ultraviolet quenching element 40 is used to block ultraviolet light with low transmittance, including but not limited to, at least in the 280nm-410nm range, particularly in the 380nm-410nm range where the ultraviolet transmittance is less than or equal to 1%, preferably ≤0.1%, and more preferably less than or equal to 0.01%. In this embodiment, the ultraviolet transmittance is measured according to ISO 13837-2008.

[0030] In one embodiment, the wavelength range in which the photochromic layer 20 is triggered to change color includes, but is not limited to, 380nm~410nm. The specific wavelength range can be flexibly adjusted and set according to actual needs, and is not limited here.

[0031] In one embodiment, the UV eliminator 40 is configured as a UV-CUT layer, i.e., a UV cut-off layer or a UV blocking layer. Specifically, the UV eliminator 40 includes, but is not limited to, a coating formed on the surface of the photochromic layer or the first glass plate using processes such as spraying, 3D printing, paint application, PVD, or CVD; it can also be an integrally molded film, for example, obtained using injection molding. Thus, the thickness of the UV eliminator 40 is sufficiently small, so that in scenarios with weak light or UV intensity, such as at night or dusk, the color and transmittance of the non-adjustable color-changing area 51 are almost identical to those of the adjustable color-changing area 52, making the UV eliminator 40 virtually indistinguishable, with virtually no color difference in the actual peripheral transition, thereby improving the product's appearance performance.

[0032] In some embodiments, the thickness of the UV eliminator 40 includes, but is not limited to, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 1mm, 1.5mm or 2mm, etc., which can be flexibly adjusted and set according to actual needs.

[0033] See Figure 1 , Figure 5 and Figure 6 In one embodiment, the photochromic dimming glass includes a non-adjustable dimming area 51 and an adjustable dimming area 52 connected to the non-adjustable dimming area 51. The non-adjustable dimming area 51 corresponds to the location area of ​​the ultraviolet extinguishing member 40, that is, along the thickness direction of the photochromic dimming glass, the non-adjustable dimming area 51 and the ultraviolet extinguishing member 40 are directly opposite each other, and their outlines coincide. In other words, the orthographic projection area of ​​the ultraviolet extinguishing member 40 on the photochromic layer 20 is completely located inside the photochromic layer 20, that is, completely covered by the photochromic layer 20. Specifically, the shape of the non-adjustable dimming area 51 is the same as the shape of the location area of ​​the ultraviolet extinguishing member 40, and the area size of the non-adjustable dimming area 51 is the same as the area size of the ultraviolet extinguishing member 40. In addition, the adjustable dimming area 52 is arranged circumferentially around the non-adjustable dimming area 51. The transmittance of the adjustable color-changing area 52 when it darkens is set to TL1, and the transmittance of the non-adjustable color-changing area 51 is set to TL2, where (TL2-TL1) / TL1≥50%. Thus, by controlling the transmittance difference between the two areas, the non-adjustable color-changing area 51 and the adjustable color-changing area 52, to exceed 50%, with the transmittance TL1 of the adjustable color-changing area 52 when it darkens as the baseline value and the transmittance TL2 of the non-adjustable color-changing area 51 as the comparison value, occupants can perceive the contrast difference between the two areas and experience the photochromic darkening effect that protects the car interior from sunlight, thereby enhancing the product's perceived quality.

[0034] In some embodiments, the orthographic projection area of ​​the ultraviolet (UV) eliminator 40 on the photochromic layer 20 partially overlaps with the photochromic layer 20. Thus, the UV eliminator 40 projects onto the photochromic layer 20 along its thickness direction, and the overlapping area can effectively eliminate UV light from the photochromic layer 20, making this overlapping area a non-adjustable color-changing region 51. Furthermore, the areas of the UV eliminator 40 located outside the photochromic layer 20 along its thickness direction cannot eliminate UV light from the photochromic layer 20.

[0035] In one embodiment, as can be seen from Table 1, when (TL2-TL1) / TL1 is between 100% and 300%, the transmittance contrast rate is large enough to allow passengers to clearly see the contrast difference between the two and feel the photochromic darkening to protect the interior from sunlight, thus greatly improving the product's perceived experience.

[0036] Specifically, (TL2-TL1) / TL1 can be various values ​​including but not limited to 100%, 120%, 150%, 180%, 200%, 250%, 300%, etc. It can also be set to any value from 50% to 100% and greater than 300%. The specific value can be flexibly adjusted and selected according to actual needs, and no limitation is imposed here.

[0037] In one embodiment, TL1 ≤ 50%. Thus, when TL1 is set small enough, and TL2 is set large enough, (TL2-TL1) / TL1 can meet the requirements.

[0038] TL1 includes, but is not limited to, 50%, 30%, 25%, 20%, 18%, 15%, 13%, 12%, 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1.5%, or 1%, etc. The specific values ​​can be flexibly adjusted and set according to actual needs.

[0039] Table 1

[0040]

[0041] In one specific embodiment, the pattern shape of the UV eliminator 40 includes, but is not limited to, a company logo, a personalized pattern, or other shapes. In sufficiently bright lighting conditions, the company logo is located in the non-adjustable color-changing area 51, i.e., it is bright, while other areas are in the adjustable color-changing area 52, which darkens accordingly. This contrast makes the company logo gradually clearer, serving as a reminder of the dimming change. The displayed company logo reminds the user that the car window is effectively protecting the occupants from direct sunlight. Users can easily visually perceive the light-induced dimming change during the experience, while simultaneously reinforcing the brand image. It is understandable that if the pattern of the UV eliminator 40 is set to a personalized pattern, it can meet the customized needs of customers.

[0042] Please see Figure 1 , Figure 5 and Figure 6 In one embodiment, the ultraviolet (UV) eliminator 40 is disposed in the central portion of the photochromic layer 20. In other words, the UV eliminator 40 is disposed at the center of the photochromic layer 20 or in a region relatively close to the center. In this embodiment, the UV eliminator 40 is specifically disposed slightly above the center of the photochromic layer 20. Thus, when the photochromic dimming glass is applied to a sunroof or windshield, in sufficiently bright light conditions, the pattern in the area corresponding to the UV eliminator 40 is located in the center of the photochromic dimming glass, allowing front and rear passengers inside the vehicle to easily and quickly observe the pattern in the area corresponding to the UV eliminator 40.

[0043] Of course, the ultraviolet eliminator 40 is not limited to being arranged in the middle part of the photochromic layer 20, but can also be arranged at any position on the photochromic layer 20, including but not limited to being set around, on top, at bottom, on the left or right side of the photochromic layer 20. The specific arrangement can be flexibly adjusted and set according to actual needs, as long as it can be easily observed by people inside the vehicle.

[0044] In one embodiment, multiple UV eliminators 40 are arranged at intervals on the photochromic layer 20. Thus, compared to having only one UV eliminator 40, having multiple eliminators 40 makes the pattern in the area corresponding to the UV eliminator 40 easier to observe in scenes with sufficiently bright light.

[0045] In this embodiment, multiple ultraviolet quenching elements 40 are arranged at different positions on the photochromic layer 20 according to actual needs. The specific arrangement can be adjusted and set according to actual requirements. Of course, in some embodiments, there may be only one ultraviolet quenching element 40.

[0046] In one embodiment, the photochromic layer 20 is a photochromic adhesive film, which is connected to the first glass plate 10 and the second glass plate 30 respectively.

[0047] Please compare and refer to the following: Figure 1 and Figure 4 Compared to Figure 1 As shown in the structure, the photochromic color-changing glass further includes a first adhesive layer 60 disposed between the photochromic layer 20 and the first glass plate 10, and a second adhesive layer 70 disposed between the photochromic layer 20 and the second glass plate 30. In this way, the first glass plate 10, the photochromic layer 20 and the second glass plate 30 can be firmly connected together.

[0048] Please compare and refer to the following: Figure 1 and Figure 2 Compared to Figure 1 In terms of the structure shown, the photochromic color-changing glass also includes a first adhesive layer 60 disposed between the photochromic layer 20 and the first glass plate 10, omitting elements such as... Figure 4 The second adhesive layer 70 in the structure shown. Of course, it can also be omitted, such as... Figure 4 The first adhesive layer 60 in the structure shown.

[0049] Please see Figure 4 In some embodiments, the first adhesive layer 60 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 70 can be a single layer or a multi-layer composite adhesive layer, which can be flexibly adjusted and set according to actual needs.

[0050] Please see Figure 4 In one embodiment, the materials and thicknesses of the first adhesive layer 60 and the second adhesive layer 70 are independently set and adjusted according to actual needs, as long as their respective transmittance meets preset requirements and the bonding stability between the photochromic layer 20 and the first glass plate 10 and the second glass plate 30 is improved. The materials of the first adhesive layer 60 and the second adhesive layer 70 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 60 and the second adhesive layer 70 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.

[0051] In one embodiment, the first glass plate 10 and the second glass plate 30 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.

[0052] In one embodiment, the transmittance 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 of the first glass plate 10 includes, but is not limited to, 70%, 72%, 75%, 80%, 82%, 85%, 90%, etc. Of course, the transmittance of the first glass plate 10 can also be set to any value less than 70%.

[0053] In some embodiments, the surface of the first glass plate 10 facing the photochromic layer 20 is surface-treated to reflect heat and provide a comfortable in-vehicle experience.

[0054] In some embodiments, the transmittance of the second glass plate 30 can be greater than that of the first glass plate 10, the same as that of the first glass plate 10, or less than that of the first glass plate 10. Specifically, it can be flexibly adjusted and set according to actual needs, including but not limited to 30%, 40%, 50%, 60%, 70%, 80%, 90%, etc.

[0055] Please see Figure 1 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 30 has a third surface 31 and a fourth surface 32 facing away from each other, with the second surface 12 and the third surface 31 facing each other, and the photochromic layer 20 is connected to the second surface 12 and the third surface 31 respectively. The fourth surface 32 faces the internal environment.

[0056] Please see Figure 1 and Figure 3 In some embodiments, a first light-blocking layer 80 is provided on the second surface 12 of the first glass plate 10. The first light-blocking layer 80 is located around the periphery of the second surface 12. The visible light transmittance of the first light-blocking layer 80 is, for example, ≤50%, including but not limited to 50%, 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, 0%, etc., which can play a light-blocking role, that is, equivalent to a black border 53. In addition, the third surface 31 of the second glass plate 30 (e.g. Figure 1 (as shown) or fourth side 32 (as shown) Figure 3 A second light-blocking layer 90 is provided on the surface (as shown). The second light-blocking layer 90 is located around the periphery of the third surface 31 or the fourth surface 32. The visible light transmittance of the second light-blocking layer 90 is, for example, ≤50%, including but not limited to 50%, 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, 0%, etc., which can play a role in blocking light, that is, equivalent to a black border 53.

[0057] In some embodiments, the laminated glass further includes a scratch-resistant coating and / or an anti-splash film layer connected to the first glass plate 10. This achieves scratch and splash resistance, thus diversifying the product's functionality. The scratch-resistant coating is, but is not limited to, being attached to the first surface 11 of the first glass plate 10 by spraying, pasting, or other processing methods. Similarly, the anti-splash film layer is, but is not limited to, being attached to the first surface 11 of the first glass plate 10 by spraying, pasting, or other processing methods.

[0058] Please see Figure 1 , Figure 5 and Figure 6 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 photochromic color-changing glass from any of the above embodiments. Photochromic color-changing glass includes, but is not limited to, the windshield, side windows, rear window, sunroof, rearview mirrors, etc., of the means of transportation.

[0059] In the aforementioned transportation vehicle, an ultraviolet (UV) eliminator 40 is provided on the side of the photochromic layer 20 facing the first glass plate 10. The UV eliminator 40 eliminates UV light, making the area on the photochromic dimming glass corresponding to the UV eliminator 40 a non-adjustable dimming area 51. The remaining areas on the photochromic layer 20 with the UV eliminator 40, which can normally receive UV light under strong light, are adjustable dimming areas 52. Thus, in scenarios with weak light or UV intensity, such as at night or dusk, the color and transmittance of the non-adjustable dimming area 51 and the adjustable dimming area 52 remain consistent, with no color difference in the actual transition, improving the consistency of the product's appearance. In scenarios with sufficiently strong light, the color and transmittance of the non-adjustable dimming area 51 remain unchanged, while the remaining areas on the photochromic layer 20 with the UV eliminator 40 darken under strong light or UV radiation. This allows for a more intuitive perception of the photochromic dimming changes compared to the non-adjustable dimming area 51, thereby enriching the product's performance.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0062] 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.

[0063] 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 photochromic color-changing glass, characterized in that, The photochromic color-changing glass comprises: A first glass plate, a photochromic layer, and a second glass plate are stacked sequentially; the first glass plate faces the external environment, and the second glass plate faces the internal environment; and an ultraviolet (UV) eliminator is provided, wherein the UV eliminator is made of a transparent material and is disposed on the side of the photochromic layer facing the first glass plate. The area of ​​the orthographic projection area of ​​the UV eliminator on the photochromic layer is smaller than the area of ​​the photochromic layer, and the wavelength range to which the UV eliminator is used to isolate covers the wavelength range in which the photochromic layer is triggered to change color.

2. The photochromic color-changing glass according to claim 1, characterized in that, The photochromic dimming glass includes a non-adjustable dimming area and an adjustable dimming area connected to the non-adjustable dimming area; the non-adjustable dimming area corresponds to the location area of ​​the ultraviolet elimination element; the transmittance of the adjustable dimming area when it darkens is set to TL1, the transmittance of the non-adjustable dimming area is set to TL2, and (TL2-TL1) / TL1≥50%.

3. The photochromic color-changing glass according to claim 2, characterized in that, (TL2-TL1) / TL1 is 100% to 300%.

4. The photochromic color-changing glass according to claim 2, characterized in that, TL1≤50%.

5. The photochromic color-changing glass according to claim 1, characterized in that, The ultraviolet quenching element is disposed in the middle portion of the photochromic layer; and / or, the ultraviolet quenching element is configured as a plurality of elements and disposed at intervals on the photochromic layer.

6. The photochromic color-changing glass according to claim 1, characterized in that, The photochromic layer is a photochromic adhesive film, which is connected to the first glass plate and the second glass plate respectively.

7. The photochromic color-changing glass according to claim 1, characterized in that, The photochromic color-changing glass further includes a first adhesive layer disposed between the photochromic layer and the first glass plate, and / or a second adhesive layer disposed between the photochromic layer and the second glass plate.

8. The photochromic color-changing glass according to claim 1, characterized in that, The first glass plate has a first side and a second side facing away from each other, with the first side facing the external environment; the second glass plate has a third side and a fourth side facing away from each other; the second side and the third side are opposite to each other, and the photochromic layer is connected to the second side and the third side respectively; the fourth side faces the internal environment. Wherein, a first light-blocking layer is provided on the second surface of the first glass plate, the first light-blocking layer is located at the periphery of the second surface, and the visible light transmittance of the first light-blocking layer is ≤50%; and / or, A second light-blocking layer is provided on the third or fourth surface of the second glass plate. The second light-blocking layer is located around the periphery of the third or fourth surface, and the visible light transmittance of the second light-blocking layer is ≤50%.

9. The photochromic color-changing glass according to claim 1, characterized in that, The ultraviolet quenching component is used to block the 380nm~410nm wavelength band, and the wavelength range in which the photochromic layer is triggered to change color is 380nm~410nm.

10. A means of transportation, characterized in that, The vehicle includes photochromic glass as described in any one of claims 1 to 9.

Images