Glass assembly, window body assembly and vehicle

Abstract

The utility model provides a glass assembly, a window assembly and a vehicle. The glass assembly includes: a glass body; the first functional layer is suitable for adjusting the visible light reflectivity and is arranged on one side of the glass body; and the second functional layer is suitable for adjusting haze and is arranged on one side of the first functional layer. According to the glass assembly, the first functional layer with the visible light reflectivity adjusting function and the second functional layer with the haze adjusting function are integrated, and the visible light reflectivity and / or the haze can be adjusted according to different application occasions and user requirements, so that the glass assembly has multiple functions, the user experience is improved, and the cost benefit requirement is met.

Description

Technical Field

[0001] This disclosure relates generally to the field of glass manufacturing technology, and more specifically to a glass assembly having visible light reflectance and haze adjustment functions, a window assembly including the glass assembly, and a vehicle including the glass assembly or the window assembly. Background Technology

[0002] With the rapid development of the transportation industry and the diversified functional requirements of consumers for vehicle windows, the demand for heat-insulating glass in the automotive sector is increasing. Vehicle manufacturers and users are paying more and more attention to the thermal comfort of window glass, hoping that the interior temperature of the vehicle will not be too high when the external temperature is too high (e.g., in summer). Heat-insulating glass usually uses heat-insulating coatings or films on the surface of the glass to achieve heat insulation, such as infrared-reflecting metallic layers, such as silver (Ag) coatings, or low-emissivity (Low-E) coatings, such as indium tin oxide (ITO) coatings, to reduce the heat transfer coefficient to the vehicle interior, thereby alleviating the problem of poor thermal comfort to some extent. However, current solutions are still not completely satisfactory. Furthermore, infrared-reflecting coatings and Low-E coatings are expensive, which is not conducive to meeting cost-effectiveness requirements, and the durability of the coatings or films is also poor, resulting in a reduced lifespan and thus affecting the heat insulation performance. Some solutions, such as using low-transmittance (e.g., tinted) polyvinyl butyral (PVB) in the window glass, absorb most of the visible light to reduce the visible light entering the vehicle interior. However, visible light absorbed by the low-transmittance PVB exhibits secondary emission, leading to increased interior temperature and radiating heat into the vehicle, thus affecting thermal comfort. Therefore, this approach has very limited effectiveness in reducing interior vehicle temperature.

[0003] Controlling light pollution is also a key concern in the design of vehicle windows, which is crucial for both occupants inside the vehicle and pedestrians or other vehicles outside.

[0004] Therefore, vehicle manufacturers and users expect a product that meets various needs such as thermal comfort, no risk of light pollution, and cost savings. Utility Model Content

[0005] The purpose of this disclosure is to improve existing automotive window glass by proposing a glass assembly that can adjust visible light reflectivity and / or haze for different applications and user needs, thereby obtaining a more attractive product with multiple functions.

[0006] Therefore, according to one aspect of this disclosure, a glass assembly is provided, the glass assembly comprising: a glass body; a first functional layer adapted to adjust visible light reflectivity and disposed on one side of the glass body; and a second functional layer adapted to adjust haze and disposed on one side of the first functional layer.

[0007] Based on the above technical concept, the embodiments of this disclosure may further include any one or more of the following optional forms.

[0008] In some alternative forms, the glass assembly includes two second functional layers located on either side of the first functional layer.

[0009] In some alternative configurations, the first functional layer is configured as an electroreflective film, and / or the visible light reflectance of the first functional layer is 1% to 95%.

[0010] In some alternative configurations, the second functional layer is configured as an electroluminescent film, and / or the second functional layer includes a polymer-dispersed liquid crystal film, a suspended particle film, a dye-doped polymer-dispersed liquid crystal film, a guest-host type liquid crystal film, or a polymer network liquid crystal film.

[0011] In some alternative forms, the second functional layer covers the first functional layer along the cross-sectional direction of the glass body.

[0012] In some alternative forms, the glass body includes clear glass, tinted glass, tempered glass, or coated glass.

[0013] In some alternative forms, the glass body is a first glass body, and the glass assembly further includes a second glass body stacked on top of and attached to the first glass body by an adhesive layer, wherein the first functional layer is disposed on the surface of the first glass body away from the second glass body, or on the surface of the second glass body away from the first glass body, or between the first glass body and the second glass body.

[0014] In some alternative forms, the glass assembly includes a frame structure arranged around the first functional layer and / or the second functional layer.

[0015] In some alternative forms, the adhesive layer comprises transparent or colored polyvinyl butyral, transparent or colored ethylene-vinyl acetate copolymer, transparent or colored polyurethane, or optically transparent adhesive.

[0016] In some alternative forms, the glass assembly includes a control unit configured to control the first functional layer to adjust visible light reflectivity and to control the second functional layer to adjust haze; optionally, the control unit includes a vehicle control unit and / or a remote control unit and / or an electronic control unit for the first functional layer and / or an electronic control unit for the second functional layer.

[0017] In some alternative forms, the control unit is configured to control the first functional layer to adjust the visible light reflectance based on the glass assembly's own temperature and / or the ambient temperature and / or the ambient brightness of the glass assembly, and to control the second functional layer to be in a fog state when the visible light reflectance of the first functional layer is greater than or equal to a first set value and / or the rate of change of the ambient brightness before and after adjusting the visible light reflectance of the first functional layer is greater than or equal to a second set value. Optionally, the first set value is 50%, 55%, 60%, 65%, 70% and / or the second set value is 50%, 55%, 60%, 65%, 70% and / or the fog value of the fog state is greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, or greater than or equal to 95%.

[0018] According to another aspect of this disclosure, a window assembly is provided, the window assembly including the glass components described above, wherein the window assembly includes a door, window, curtain wall, vehicle window glass, aircraft glass, or ship glass.

[0019] In some alternative forms, the glass assembly is a vehicle window glass, including a windshield, rear windshield, sunroof, door glass, or corner window glass.

[0020] According to another aspect of this disclosure, a means of transportation is provided, the means of transportation including the glass assembly described above, or the window assembly described above, optionally, the means of transportation including a vehicle.

[0021] The glass assembly disclosed herein integrates a first functional layer with visible light reflectance adjustment function and a second functional layer with haze adjustment function, which can adjust visible light reflectance and / or haze according to different application scenarios and user needs, thereby combining multiple functions such as thermal comfort and safety, improving the user experience and meeting cost-effectiveness requirements. Attached Figure Description

[0022] Other features and advantages of this disclosure will be better understood through the following detailed description of alternative embodiments in conjunction with the accompanying drawings, in which the same reference numerals identify the same or similar parts, wherein:

[0023] Figure 1 This is a cross-sectional schematic diagram of a glass assembly according to one embodiment of the present disclosure;

[0024] Figure 2 This is a cross-sectional schematic diagram of a glass assembly according to another embodiment of the present disclosure. Detailed Implementation

[0025] The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely illustrative of particular ways of implementing and using this disclosure, and are not intended to limit the scope of this disclosure. The descriptions of the structural positions of various components, such as up, down, top, bottom, etc., are not absolute but relative. These directional descriptions are appropriate when the various components are arranged as shown in the figures, but they change accordingly when the positions of the various components in the figures change.

[0026] In this document, expressions such as “including” or similar expressions such as “having” are open-ended and do not exclude additional unlisted elements, steps or components.

[0027] In this document, the terms “first”, “second”, etc., are not used to specify the order of events or the number of components, unless otherwise stated.

[0028] In this document, unless otherwise explicitly specified, the terms "attachment" and similar terms 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this document according to the specific circumstances.

[0029] In this article, the "surface" of a glass body or stacked layer structure refers to the surface with a large surface area among the various faces of the glass body or stacked layer structure, and the "edge" refers to the surface of the glass body or stacked layer structure defined by its thickness. The "section" of a glass assembly is a section taken along the thickness direction of the glass assembly, and the "section direction" is the direction perpendicular to the surface of the glass body or the normal direction of the surface of the glass body.

[0030] In this document, the glass assembly is described as being used in automotive window glass; however, it does not preclude the glass assembly or window assembly including the glass assembly from being used in environments such as doors, windows, curtain walls, aircraft glass, or ship glass. When the glass assembly is described as automotive window glass for a vehicle, "outer" and "inner" are directions relative to the vehicle body; "outer" refers to the direction away from the vehicle body, and "inner" refers to the direction facing the vehicle body. It should be understood that the automotive window glass according to embodiments of this disclosure includes, but is not limited to, windshields, rear windshields, door glass (including front door glass and rear door glass), sunroof glass, or corner window glass, and can meet different functional effects based on different needs.

[0031] In the various embodiments described, unless otherwise specified, the thickness of the glass is the thickness commonly used in the art, and the thickness of the various layers on the glass is within a conventional range and is not limited to what is shown in the figures. Furthermore, although the figures show flat glass, the glass assembly of this disclosure can also be curved glass. In the various embodiments, each is described as a separate glass body; however, in some cases not described, the surface of the glass body may also be coated with special coatings to provide additional comfort properties.

[0032] For most vehicle users, when occupants (driver and passengers) are inside the vehicle, they expect the windows to provide thermal comfort and reduce light pollution to ensure driving comfort and safety. The same applies to manufacturers, who also expect to provide these functionalities in a cost-effective manner. Current methods, such as using infrared reflective coatings and Low-E coatings, are costly and do not meet cost-effectiveness requirements. Furthermore, when using reflective coatings, it is also necessary to avoid light pollution effects on the vehicle's interior and / or exterior under high reflectivity conditions.

[0033] Therefore, according to the concept of this disclosure, a glass assembly is provided, comprising: a glass body; a first functional layer adapted to adjust visible light reflectivity and disposed on one side of the glass body; and a second functional layer adapted to adjust haze and disposed on one side of the first functional layer.

[0034] By providing a first functional layer with visible light reflectance adjustment and a second functional layer with haze adjustment, the glass assembly of this disclosure can adjust visible light reflectance and / or haze based on different application scenarios and user needs. For example, when applied to vehicle windows, the visible light reflectance can be adjusted through the first functional layer based on environmental characteristics (e.g., including but not limited to ambient temperature and / or ambient brightness) to provide thermal comfort inside the vehicle. When the temperature and / or brightness inside the vehicle reaches a set value, the haze can be adjusted through the second functional layer to control light pollution inside and / or outside the vehicle. It should be understood that, depending on the positional relationship between the first and second functional layers relative to the vehicle interior or exterior, light pollution control inside and / or outside the vehicle can be provided according to different needs, effectively reducing or eliminating the adverse effects of the high reflectance state of the first functional layer on the surrounding environment. Furthermore, with the increasing popularity of electric vehicles, users are paying more and more attention to vehicle range. In summer, high temperatures inside the vehicle can lead to increased battery energy consumption, thus affecting vehicle range. Using the glass assembly of this disclosure can mitigate or even eliminate range problems caused by high temperatures.

[0035] It should be understood that the glass components disclosed herein encompass single-layer glass and laminated glass having multiple layers of glass. Figure 1A cross-sectional schematic diagram of a glass assembly in the form of laminated glass according to one embodiment of the present disclosure is shown. In this embodiment, the glass body of the glass assembly 100 includes a first glass body 110 and a second glass body 120, and an adhesive layer attaching the first glass body 110 and the second glass body 120 to each other. A first functional layer 140 is adapted to adjust visible light reflectivity and may be disposed on the surface of the first glass body 110 away from the second glass body 120, or on the surface of the second glass body 120 away from the first glass body 110, or between the first glass body 110 and the second glass body 120. Here, "between" encompasses various arrangements in which the first functional layer 140 is directly adjacent to or not directly adjacent to the first glass body 110 or the second glass body 120. In the illustrated embodiment, the adhesive layer includes, for example, a first adhesive layer 130a and a second adhesive layer 130b, and the first functional layer 140 may be sandwiched between the first adhesive layer 130a and the second adhesive layer 130b. A second functional layer 150 is adapted to adjust haze and is disposed on one side of the first functional layer 140. In the illustrated embodiment, the second functional layer 150 is also arranged between the first glass body 110 and the second glass body 120 and is located on the side of the first functional layer 140 facing the first glass body 110. It can be separated from the first functional layer 140 by the third adhesive layer 130c. Thus, on the side of the second functional layer 150 away from the first functional layer 140 (the side facing the first glass body 110 in the illustrated embodiment), the haze of the second functional layer 150 (e.g., haze value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%) provides the effect of reducing light pollution and improving visual comfort.

[0036] As an example, the glass body may include clear glass, tinted glass, tempered glass, or coated glass. Tinted glass may be, for example, VG10 glass (glass with a visible light transmittance of 10%) or VG20 glass (glass with a visible light transmittance of 20%). Coated glass, also known as reflective glass, has one or more layers of metal, alloy, or metal compound film coated on its surface to alter its optical properties and meet specific requirements. For example, coated glass may be double-silvered glass (2Ag glass) or triple-silvered glass (3Ag glass), or glass with a Low-E coating. By using tinted or coated glass according to different needs, a balance can be further achieved between the thermal comfort and light pollution control provided by the glass assembly.

[0037] As an example, the adhesive layers (first adhesive layer 130a, second adhesive layer 130b, and third adhesive layer 130c) are, for example, adhesive layers suitable for laminated glass such as polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), and optically clear adhesive (OCA). Typically, the adhesive layers can be made of transparent materials. In some embodiments, the adhesive layers can be made of colored materials, which can provide a degree of thermal comfort with lower visible light transmittance. For example, colored PVB, colored EVA, or colored PU may be selected. Herein, "colored" refers to the inherent color of the material in its natural state (e.g., non-electrically variable), including its natural color or color added through a process, such as black or gray.

[0038] Advantageously, the second functional layer 150 covers the first functional layer 140 along the cross-sectional direction of the glass body (first glass body and / or second glass body). Here, "covering" means that the orthographic projection of the second functional layer 150 along the cross-sectional direction of the glass body covers the orthographic projection of the first functional layer 140, that is, the size or area of ​​the orthographic projection of the second functional layer 150 is greater than or equal to the size or area of ​​the orthographic projection of the first functional layer 140, as shown in the embodiment, so that the haze of the second functional layer 150 (e.g., haze value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%) can increase the scattering of visible light on the side of the second functional layer 150 away from the first functional layer 140, thereby softening the light to provide an anti-glare effect to reduce light pollution and improve visual comfort.

[0039] In some embodiments, the glass assembly may further include a frame structure arranged around the first functional layer and / or the second functional layer. For example, in the glass assembly 100 of the illustrated embodiment, a frame structure 160a may be arranged around the first functional layer 140 and a frame structure 160b may be arranged around the second functional layer 150. The frame structure can pre-position the first functional layer 140 and the second functional layer 150, fill the thickness difference between the edges of the first functional layer 140 and the second functional layer 150 and the adhesive layer, and ensure complete sealing after lamination. Alternatively, the frame structure may be selected from the same material as the adhesive layer. If the thickness of the first functional layer 140 or the second functional layer 150 is sufficiently small, the corresponding frame structure may be omitted. Depending on the needs, the frame structure may be transparent or colored.

[0040] Figure 2The glass assembly 100-1 of the illustrated embodiment is substantially the same as the glass assembly 100 described above, except that the glass assembly 100-1 includes two second functional layers located on opposite sides of the first functional layer. Specifically, in addition to the second functional layer 150 located on the side of the first functional layer 140 facing the first glass body 110, the glass assembly 100-1 also includes another second functional layer 150a located on the side of the first functional layer 140 facing the second glass body 120, and may be spaced apart from the first functional layer 140 by a fourth adhesive layer 130d. Similarly, in some embodiments, a frame structure 160c may be arranged around the other second functional layer 150a. In this way, when applied to vehicle window glass, the first glass body 110 may face the exterior of the vehicle (may be referred to as the outer glass), and the second glass body 120 may face the interior of the vehicle (may be referred to as the inner glass). Depending on the specific needs, the second functional layer 150 can provide reduced light pollution and improved visual comfort on the side opposite to the first functional layer 140 (i.e., the exterior of the vehicle) and / or on the side opposite to the first functional layer 140 (i.e., the interior of the vehicle) of another second functional layer 150a.

[0041] Depending on the specific needs, the first functional layer 140 and / or the second functional layer 150 and / or another second functional layer 150a may include a substrate, such as a glass film or a polymer film, which is not limited herein.

[0042] For the first functional layer 140, the first functional layer can be configured as an electroreflective film, which typically includes a transparent electrolyte layer and two carrier layers (e.g., a substrate in the form of a glass film) with transparent electrode layers. Switching between a transparent state and a specular reflective state is achieved by the cyclic deposition and dissolution of metal ions from a metal oxide on the electrode layers. When an electric field is applied to the metal oxide, metal ions are deposited on the transparent electrodes, resulting in decreased transmittance and increased reflectance. When a reverse electric field is applied, the metal ions dissolve into the metal oxide, resulting in increased transmittance and decreased reflectance. Advantageously, the visible light transmittance of the first functional layer can be from 0.5% to 90%, and the visible light reflectance can be from 1% to 95%.

[0043] In this paper, visible light transmittance refers to the light transmission within the visible spectrum, expressed as a percentage (%), and measured according to standard ISO 9050:2003 (light source D65; 2° observer). Reflectance refers to the percentage of luminous flux reflected by a medium, particularly visible light, relative to the incident luminous flux. Visible light reflectance can be measured using methods and equipment conventional in the art. For example, it can be measured using a spectrophotometer. For example, it can be determined with reference to ISO 9050.

[0044] For the second functional layer 150 (and another second functional layer 150a), the second functional layer may be configured as an electroluminescent film, such as a polymer-dispersed liquid crystal (PDLC) film, a suspended particle (SPD) film, a dye-doped polymer-dispersed liquid crystal (DDPDLC) film, a guest-host liquid crystal (GHLC) film, or a polymer network liquid crystal (PNLC) film. This electroluminescent film is commonly referred to as a privacy film or a switchable film, capable of switching between different states with different haze values ​​as needed, for example, switching between a non-haze state and a haze state, wherein the haze value of the haze state is greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, or greater than or equal to 95%.

[0045] In this article, haze is the ratio of scattered light flux (above the normal direction) to transmitted light flux (above the normal direction) through the sample, expressed as a percentage. Typically, only scattered light flux deviating more than 2.5 degrees from the incident light direction is used to calculate haze, and it can be measured using a haze meter according to standards such as GB2410 and ASTM D1003.

[0046] Even with the superposition of a first functional layer and a second functional layer, the visible light transmittance of the glass assembly disclosed herein can be greater than or equal to 50%, 60%, 70%, 80%, or 90% in the cross-sectional direction of the glass body. This allows it to meet the different needs of drivers or passengers when applied, for example, to automotive windows. For instance, when the first functional layer is in a high visible light transmittance state and the second functional layer is in a non-fog and high visible light transmittance state, the visible light transmittance of the glass assembly (e.g., greater than or equal to 70%, 80%, or 90%) can meet the visibility requirements to the outside of the vehicle, ensuring a good field of vision for the driver and passengers, and improving driving safety and the driving experience. Furthermore, when thermal comfort inside the vehicle is required, the visible light transmittance and visible light reflectance of the first functional layer can be correspondingly set. For example, increasing the visible light reflectance to achieve a high visible light reflectance and low visible light transmittance state will result in a corresponding change in the visible light transmittance of the glass assembly (a decrease in visible light transmittance). For example, when the visible light reflectance of the first functional layer reaches a certain set value, the second functional layer can be set to the corresponding haze value and be in a fog state (e.g., haze value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%), thereby reducing light pollution outside the vehicle, for example, when the second functional layer is located on the side facing the outside of the vehicle.

[0047] In some embodiments, the glass assembly of this disclosure (e.g., glass assembly 100 or glass assembly 100-1 illustrated) may further include a control unit, which may be configured to control the first functional layer to adjust visible light reflectivity and to control the second functional layer to adjust haze. Optionally, the control unit may include a remote control unit and / or an electronic control unit for the first functional layer and / or an electronic control unit for the second functional layer. When the glass assembly is applied to a vehicle window, the control unit may include a vehicle control unit and / or a remote control unit and / or an electronic control unit for the first functional layer and / or an electronic control unit for the second functional layer. It should be understood that the control unit herein may include independent control units located in different physical locations, or it may include an integrated control unit integrated in the same physical location.

[0048] In some embodiments, the control unit may be configured to control the first functional layer to adjust the visible light reflectance based on the glass assembly's own temperature and / or the ambient temperature and / or the ambient brightness of the glass assembly, and to control the second functional layer to be in a fog state (e.g., fog value greater than or equal to 50%, 60%, 70%, 80%, 90%, or 95%) when the visible light reflectance of the first functional layer is greater than or equal to a first set value and / or the rate of change of ambient brightness before and after adjusting the visible light reflectance of the first functional layer is greater than or equal to a second set value. Here, the rate of change of ambient brightness refers to the degree of change in ambient brightness before and after adjusting the visible light reflectance of the first functional layer, i.e., the degree of increase or decrease in brightness, usually expressed as a percentage. It should be understood that, for vehicle window glass, the ambient temperature of the glass assembly can be the ambient temperature facing the interior of the vehicle or the ambient temperature facing the exterior of the vehicle. Similarly, the ambient brightness of the glass assembly can be the ambient brightness facing the interior of the vehicle (in which case, the rate of change of ambient brightness can be the degree to which the ambient brightness decreases) or the ambient brightness facing the exterior of the vehicle (in which case, the rate of change of ambient brightness can be the degree to which the ambient brightness increases). For example, the control unit may be configured to control the second functional layer to be in a fog state (e.g., fog value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%) when the visible light reflectance of the first functional layer is greater than or equal to 50% (e.g., 50%, 55%, 60%, 65%, 70%, etc.), and / or the control unit may be configured to control the second functional layer to be in a fog state (e.g., fog value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%) when the rate of change of ambient brightness before and after adjusting the visible light reflectance of the first functional layer is greater than or equal to 50% (e.g., 50%, 55%, 60%, 65%, 70%, etc.).

[0049] Specifically, in combination Figure 1When the glass assembly 100 shown is applied to a vehicle window glass, and sensors inside the vehicle or on the window glass detect, for example, that the brightness inside the vehicle or the temperature of the glass assembly itself or the temperature inside the vehicle rises to a set value (e.g., the glass temperature rises above 40°C or the temperature inside the vehicle rises above 28°C or the brightness inside the vehicle reaches 500 nits), the vehicle control unit (ECU) provides an operating voltage to the first functional layer 140 (electroreflective film) to set its visible light reflectivity. Subsequently, when the control unit detects that the voltage between the two electrodes of the first functional layer 140 reaches a certain value, such as reaching the set voltage value of the electroreflective film (the highest being the saturation voltage of the electroreflective film) so that the visible light reflectivity is greater than or equal to, for example, 50%, the control unit will keep the first functional layer 140 in the set state (for example, stop supplying power to the first functional layer 140), and at the same time send a signal to the second functional layer 150 (electro-dimming film) to make it, for example, in a fog state (haze value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%), thereby providing the effect of reducing light pollution and improving visual comfort to the side of the first glass body 110 (the exterior of the vehicle). In some embodiments, when the control unit detects that the voltage between the two electrodes of the first functional layer 140 reaches a certain value, such as reaching the set voltage value of the electroreflective film so that the visible light reflectivity is greater than or equal to a first set value of 50%, and at the same time, when the sensors inside the vehicle detect that the brightness inside the vehicle has decreased to a certain level, such as the rate of change of brightness before and after the adjustment of the visible light reflectivity of the first functional layer 140 is greater than or equal to a second set value of 50% (the brightness inside the vehicle decreases to less than or equal to 250 nits), the control unit will keep the first functional layer 140 in the set state (e.g., stop powering the first functional layer 140), and at the same time send a signal to the second functional layer 150 to make it in a fog state (fog value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%), thereby providing the effect of reducing light pollution and improving visual comfort to the side of the first glass body 110 (the outside of the vehicle). It should be understood that the first set value of visible light reflectance and / or the second set value of the rate of change of ambient brightness can be changed according to different needs. The control unit can control the second functional layer based on visible light reflectance greater than or equal to 60%, greater than or equal to 70%, etc., and / or control the second functional layer to be in a fog state (e.g., fog value greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, greater than or equal to 95%) based on the rate of change of ambient brightness greater than or equal to 70%, greater than or equal to 80%, etc., to meet different needs.

[0050] Combination Figure 2When the glass assembly 100-1 is shown, a similar control method as described above can be used. Alternatively, the above control method can be applied to the second functional layer 150, which is closer to the first glass body 110 (outer glass) relative to the first functional layer 140. For another second functional layer 150a, which is closer to the second glass body 120 (inner glass) relative to the first functional layer 140, the control unit can automatically control it as needed, or the electronic control unit of the second functional layer can be manually controlled to adjust its fog level, for example, through a control button inside the vehicle. This allows the user to choose whether to adjust the fog level of the second functional layer according to the actual situation, providing operational controllability and making it suitable for more application environments or occasions.

[0051] Regardless of the arrangement, the glass assembly of this disclosure can provide thermal comfort by altering the visible light reflectivity of the first functional layer, while simultaneously preventing adverse effects of high reflectivity of the first functional layer on, for example, light pollution inside and / or outside the vehicle, by combining it with a second functional layer that can adjust haze. This results in a more attractive product with multiple functions. It should be understood that, provided the dimming film performance allows, even adjustment methods not fully illustrated in this disclosure, such as those that simultaneously adjust visible light transmittance and haze, can achieve the aforementioned effect of avoiding the adverse effects of high reflectivity of the first functional layer. Those skilled in the art can derive various feasible solutions based on the concept of this disclosure to meet different needs, which are not exhaustively listed here.

[0052] This disclosure also provides a means of transportation that includes the aforementioned glass assembly or a window assembly including the glass assembly. As examples, the means of transportation includes, but is not limited to, vehicles, airplanes, and ships.

[0053] It should be understood here that the embodiments shown in the figures only illustrate the optional architecture, shape, size and arrangement of the various optional components of the glass assembly according to the present disclosure, and are merely illustrative and not limiting. Other shapes, sizes and arrangements may be adopted without departing from the spirit and scope of the present disclosure.

[0054] The technical content and features of this disclosure have been disclosed above. However, it is understood that those skilled in the art can make various changes and improvements to the above-disclosed concept under the inventive concept of this disclosure, but all such changes and improvements fall within the protection scope of this disclosure. The description of the above embodiments is illustrative rather than restrictive, and the protection scope of this disclosure is determined by the claims.

Claims

1. A glass assembly, characterized in that, The glass assembly includes: Vitreous body; A first functional layer, adapted to adjust visible light reflectivity, is disposed on one side of the glass body; A second functional layer, adapted to adjust the fog level, is arranged on one side of the first functional layer.

2. The glass assembly according to claim 1, characterized in that, The glass assembly includes two second functional layers located on either side of the first functional layer.

3. The glass assembly according to claim 1, characterized in that, The first functional layer is configured as an electroreflective film, and / or the visible light reflectance of the first functional layer is 1% to 95%.

4. The glass assembly according to claim 1, characterized in that, The second functional layer is configured as an electroluminescent film, and / or the second functional layer includes a polymer-dispersed liquid crystal film, a suspended particle film, a dye-doped polymer-dispersed liquid crystal film, a host-guest type liquid crystal film, or a polymer network liquid crystal film.

5. The glass assembly according to claim 1, characterized in that, The second functional layer covers the first functional layer along the cross-sectional direction of the glass body.

6. The glass assembly according to claim 1, characterized in that, The glass body includes transparent glass, tinted glass, tempered glass, or coated glass.

7. The glass assembly according to claim 1, characterized in that, The glass body is a first glass body, and the glass assembly further includes a second glass body that is stacked and attached to the first glass body by an adhesive layer. The first functional layer is disposed on the surface of the first glass body away from the second glass body, or on the surface of the second glass body away from the first glass body, or between the first glass body and the second glass body.

8. The glass assembly according to claim 7, characterized in that, The glass assembly includes a frame structure arranged around the first functional layer and / or the second functional layer.

9. The glass assembly according to claim 7, characterized in that, The adhesive layer includes transparent or colored polyvinyl butyral, transparent or colored ethylene-vinyl acetate copolymer, transparent or colored polyurethane, or optically transparent adhesive.

10. The glass assembly according to any one of claims 1 to 9, characterized in that, The glass assembly includes a control unit configured to control the first functional layer to adjust the visible light reflectivity and to control the second functional layer to adjust the haze; optionally, the control unit includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the first functional layer and / or an electronic control unit of the second functional layer.

11. The glass assembly according to claim 10, characterized in that, The control unit is configured to control the first functional layer to adjust the visible light reflectance based on the temperature of the glass assembly itself and / or the ambient temperature of the glass assembly and / or the ambient brightness of the glass assembly, and to control the second functional layer to be in a fog state when the visible light reflectance of the first functional layer is greater than or equal to a first set value and / or the rate of change of the ambient brightness before and after adjusting the visible light reflectance of the first functional layer is greater than or equal to a second set value. Optionally, the first set value is 50%, 55%, 60%, 65%, 70% and / or the second set value is 50%, 55%, 60%, 65%, 70% and / or the fog value of the fog state is greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, greater than or equal to 90%, or greater than or equal to 95%.

12. A window assembly, characterized in that, The window assembly includes a glass component according to any one of claims 1 to 11, wherein the window assembly includes a door, window, curtain wall, vehicle window glass, aircraft glass, or ship glass.

13. The window assembly according to claim 12, characterized in that, The glass components are vehicle window glass, including windshield glass, rear windshield glass, sunroof glass, door glass, or corner window glass.

14. A means of transportation, characterized in that, The means of transport includes a glass assembly according to any one of claims 1 to 11, or a window assembly according to any one of claims 12 to 13; optionally, the means of transport includes a vehicle.

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