Laminated glass, head-up display system and vehicle

Abstract

The embodiment of the invention provides laminated glass, a head-up display system and a vehicle, the laminated glass comprises a glass body and a function display assembly, the glass body comprises a first glass plate, a middle layer and a second glass plate, and the first glass plate, the middle layer and the second glass plate are sequentially connected in a stacked mode in the thickness direction of the glass body; the edge of at least one side of the second glass plate and the edge of at least one side of the first glass plate are uneven to form an assembling groove, the function display assembly is arranged in the assembling groove and comprises a function display layer and a protective layer, the function display layer and the protective layer are stacked in the thickness direction of the function display assembly, and the function display assembly layer is used for reflecting projection light and achieving the head-up display function. The laminated glass provided by the invention is integrated with the function display layer, and no abrupt step difference is generated on the surface of the laminated glass, so that the overall attractive effect of the laminated glass is ensured.

Description

Technical Field

[0001] This application relates to the field of transportation technology, specifically to a laminated glass, a head-up display system, and a vehicle. Background Art

[0002] In recent years, with the development of science and technology and the economy, the glass used in transportation vehicles has been transforming from traditional safety and comfort features to multifunctional and intelligent ones, especially with the increasingly widespread application of head-up displays (HUDs) in automotive glass. Adding HUD functionality to automotive glass to replace traditional instrument panels for displaying driving data will become a future trend. To achieve a clearer display, a functional display layer is typically added to the HUD area to improve the brightness and contrast of the reflected image.

[0003] The functional display layer can be directly applied to the surface of automotive glass or between the inner and outer layers of glass through coating to achieve better integration. However, this requires pre-treatment of the coating during glass manufacturing, which places high demands on manufacturing processes and product yield.

[0004] In other cases, the functional display layer can be placed on a component structure outside the glass body to form a relatively independent functional display component, and the functional display component can be laminated to the surface of the car glass using a partial patch method. However, this partial patch method will also create a rather abrupt step difference between the boundary of the functional display component and the surface of the car glass, thus affecting the overall aesthetic effect of the car glass. Summary of the Invention

[0005] The purpose of this application is to provide a laminated glass, a head-up display system, and a vehicle, wherein the laminated glass integrates a functional display layer and its surface does not produce abrupt step differences, thus ensuring the overall aesthetic effect of the laminated glass.

[0006] In a first aspect, embodiments of this application provide a laminated glass. The laminated glass comprises:

[0007] A glass body, comprising a first glass plate, an intermediate layer, and a second glass plate, wherein the first glass plate, the intermediate layer, and the second glass plate are sequentially stacked and connected along the thickness direction of the glass body, and the second glass plate is not flush with at least one edge of the first glass plate to form an assembly groove.

[0008] A functional display component is disposed in the mounting slot and is used to reflect projected light to realize a head-up display function.

[0009] In one embodiment, the inner surface of the functional display component is flush with the inner surface of the glass body.

[0010] In one embodiment, the functional display component includes a functional display layer and a protective layer, the functional display layer and the protective layer being stacked along the thickness direction of the functional display component, the functional display layer being located between the protective layer and the glass body in the thickness direction of the functional display component, and the thickness of the protective layer being less than or equal to 1.2 mm.

[0011] In one embodiment, the protective layer includes a protective substrate, which is attached to the surface of the functional display layer opposite to the intermediate layer.

[0012] In one embodiment, the functional display component further includes a first adhesive layer, through which the functional display component is connected to the glass body.

[0013] In one embodiment, the protective layer further includes a second adhesive layer, which is connected to the functional display layer and the protective substrate.

[0014] In one embodiment, the protective layer includes a protective substrate and a second adhesive layer, the protective substrate being connected to the surface of the functional display layer facing away from the intermediate layer, and the second adhesive layer being connected to the functional display layer and the protective substrate.

[0015] In one embodiment, the visible light transmittance of the first adhesive layer is less than or equal to 1%.

[0016] In one embodiment, the thickness of the protective substrate is greater than or equal to 0.1 mm and less than or equal to 1.1 mm.

[0017] In one embodiment, the protective substrate is made of glass or PC material.

[0018] In one embodiment, the functional display component further includes an anti-reflection layer connected to the surface of the protective layer facing away from the functional display layer.

[0019] In one embodiment, the laminated glass includes a black border area and a transparent area, the black border area being located around the transparent area, and the functional display component being at least partially located within the black border area.

[0020] In one embodiment, the glass body further includes a shielding layer, which is connected to the inner surface of the first glass plate, or the shielding layer is embedded in the interior of the intermediate layer, or the shielding layer is located in the assembly groove;

[0021] Along the thickness direction of the laminated glass, the orthographic projection of the functional display layer lies entirely within the orthographic projection range of the shielding layer.

[0022] In one embodiment, when the shielding layer is disposed on the inner surface of the first glass plate, the shielding layer is made of dark ink;

[0023] When the shielding layer is embedded in the intermediate layer, or when the shielding layer is located in the assembly groove, the shielding layer is made of a dimming film.

[0024] In one embodiment, the glass body further includes a heat insulation layer disposed between the first glass plate and the second glass plate;

[0025] Along the thickness direction of the glass body, the orthographic projection of the heat insulation layer coincides with or is completely offset from the orthographic projection of the functional display component.

[0026] In one embodiment, before the functional display component and the glass body are laminated, the thickness of the functional display component is greater than or equal to the thickness of the second glass plate; after the functional display component and the glass body are laminated, the thickness of the functional display component is equal to the thickness of the second glass plate.

[0027] Secondly, embodiments of this application provide a head-up display system. The head-up display system includes a projection device and the laminated glass. The projection device emits projection light onto the functional display components of the laminated glass. The projection light is reflected by the surface of the protective layer away from the functional display layer to form a secondary image, and the projection light is reflected by the surface of the functional display layer toward the protective layer to form a display image.

[0028] The angle of deviation between the displayed image and the secondary image is less than 2′.

[0029] Thirdly, embodiments of this application also provide a laminated glass. The laminated glass includes:

[0030] The glass body includes a first glass plate, an intermediate layer, and a second glass plate, which are sequentially stacked and connected along the thickness direction of the glass body.

[0031] A functional display layer is embedded inside the intermediate layer. The functional display layer is used to reflect projected light to realize the head-up display function.

[0032] The sum of the thickness of the intermediate layer and the thickness of the second glass plate located between the functional display layer and the second glass plate is less than or equal to 1 mm.

[0033] Fourthly, this application also provides a head-up display system. The head-up display system includes a projection device and the laminated glass. The projection device emits projection light onto the functional display components of the laminated glass. The projection light is reflected by the surface of the second glass plate away from the functional display layer to form a secondary image, and the projection light is reflected by the surface of the functional display layer towards the second glass plate to form a display image.

[0034] The angle of deviation between the displayed image and the secondary image is less than 2′.

[0035] Fifthly, embodiments of this application provide a means of transportation. The means of transportation includes a body and the aforementioned head-up display system, wherein the laminated glass and the projection device are both mounted on the body, and the projection device is located inside the body.

[0036] In related technologies, adding head-up displays (HUDs) to automotive glass to replace traditional instrument panels for displaying driving data is becoming a future trend. To achieve a clearer display, a functional display layer is typically added to the HUD area to improve the brightness and contrast of the reflected image. This functional display layer can be directly applied to the surface of the automotive glass or between the inner and outer glass layers through a coating process for better integration. However, this requires pre-treatment of the coating during glass manufacturing, which places high demands on manufacturing processes and product yield. In other cases, the functional display layer can be placed on a component structure outside the glass body, forming a relatively independent functional display component. This component can then be laminated to the surface of the automotive glass using a partial patch method. However, this partial patch method can create a noticeable step difference between the boundary of the functional display component and the surface of the automotive glass, thus affecting the overall aesthetics of the automotive glass.

[0037] In this embodiment, the laminated glass includes a glass body and a functional display component. The height of the second glass plate of the glass body is less than the height of the intermediate layer and the first glass plate, thus creating a mounting groove in the glass body. The functional display component is installed in the mounting groove of the glass body. The thickness of the functional display component is equal to the thickness of the second glass plate, meaning the protective surface of the protective substrate is flush with the fourth surface of the second glass plate. This avoids unevenness on the inner surface of the laminated glass, preventing abrupt step differences and ensuring the overall aesthetic appearance of the laminated glass. Furthermore, the sum of the thicknesses of the protective substrate and the second adhesive layer of the functional display component is less than or equal to 1.2 mm, ensuring that the angle of deviation between the secondary image formed by the reflected light from the protective substrate and the functional display layer and the displayed image is less than 2′. This avoids ghosting problems and ensures the safety of the vehicle during operation.

[0038] Alternatively, the functional display layer of the laminated glass is located between the first and second glass plates. In this case, the height of the second glass plate is the same as that of the first glass plate. Simultaneously, while ensuring that no ghosting occurs after the fourth surface of the second glass plate reflects the projected light, the thickness of the second glass plate is reduced. Furthermore, the sum of the thickness of the intermediate layer between the functional display layer and the second glass plate is less than or equal to 1 mm. This ensures that the deviation angle between the displayed image and the secondary image formed after the projected light is reflected by the functional display layer and the second glass plate is less than 2′, thus avoiding ghosting problems and ensuring the safety of the vehicle during operation.

[0039] Furthermore, compared to the prior art of partially attaching patches to the inner surface of automotive glass, the functional display components and the glass body in this embodiment can be assembled before lamination, saving the production process of laminated glass and thus improving the production efficiency of laminated glass. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments or background art of this application, the accompanying drawings used in the embodiments or background art of this application will be described below.

[0041] Figure 1 A schematic diagram of the structure of the vehicle provided in the embodiments of this application;

[0042] Figure 2 for Figure 1 A cross-sectional schematic diagram of the head-up display system in the vehicle shown;

[0043] Figure 3 for Figure 2 A cross-sectional schematic diagram of a second embodiment of the head-up display system shown;

[0044] Figure 4 for Figure 2 A cross-sectional schematic diagram of a third embodiment of the head-up display system shown;

[0045] Figure 5 for Figure 2 A cross-sectional schematic diagram of a fourth embodiment of the head-up display system shown;

[0046] Figure 6 for Figure 2 A cross-sectional schematic diagram of a fifth embodiment of the head-up display system shown;

[0047] Figure 7 for Figure 2 A cross-sectional schematic diagram of the sixth embodiment of the head-up display system shown.

[0048] The terms corresponding to the reference numerals in the figures are as follows: vehicle 1000, head-up display system 100, laminated glass 10, glass body 11, first glass plate 12, first surface 121, second surface 122, intermediate layer 13, first adhesive surface 131, second adhesive surface 132, second glass plate 14, third surface 141, fourth surface 142, bottom side 143, assembly groove 15, shielding layer 16, black border area 101, transparent area 102, functional display component 20, first adhesive layer 21, functional display layer 22, first connecting surface 222, second connecting surface 221, second adhesive layer 23, protective substrate 24, connecting surface 241, protective surface 242, projection equipment 30, projection beam 31, body 200. Detailed Implementation

[0049] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0050] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, "multiple" in this application refers to two or more.

[0051] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the vehicle provided in the embodiments of this application. Figure 2 for Figure 1 A cross-sectional schematic diagram of the head-up display system in the vehicle shown.

[0052] This application provides a means of transportation 1000, which may be a vehicle, ship, submarine, or aircraft with a head-up display function. The means of transportation 1000 described in this application is exemplified by a vehicle. The vehicle may be, but is not limited to, a sedan, multi-purpose vehicle (MPV), sport / suburban utility vehicle (SUV), off-road vehicle (ORV), pickup truck, van, bus, or truck. In a specific embodiment of this application, the means of transportation 1000 is exemplified by a sedan.

[0053] For ease of description, in this application, the width direction of the vehicle 1000 shown in the figure is defined as the X-axis direction, the length direction as the Y-axis direction, and the height direction as the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are all perpendicular to each other.

[0054] The directional terms such as "top," "bottom," "left," "right," "front," and "back" used in the description in this application are based on the appendix to the specification. Figure 1 The orientation of the vehicle 1000 is described with the forward direction along the length of the vehicle 1000 as the positive direction of the Y-axis, the direction from left to right along the width of the vehicle 1000 as the positive direction of the X-axis, and the direction away from the ground along the height of the vehicle 1000 as the positive direction of the Z-axis.

[0055] The vehicle 1000 includes a head-up display system 100 and a body 200. The head-up display system 100 is mounted on the body 200. The head-up display system 100 is used for head-up display of the vehicle 1000. In this embodiment, the body 200 can be understood as the vehicle body.

[0056] Combination Figure 1 and Figure 2As shown, the head-up display system 100 includes a laminated glass 10 and a projection device 30. The laminated glass 10 is installed at the opening of the main body 200, dividing the main body 200 into an exterior and an interior. The projection device 30 is located inside the main body 200 and is mounted on the main body 200. The projection device 30 faces the laminated glass 10 and emits projection light 31 onto the laminated glass 10. After being reflected by the laminated glass 10, the projection light 31 forms a display image that can be observed by the driver and passengers, thereby realizing the head-up function. This avoids the driver having to look down or tilt their head to look at the instrument panel, which would affect the driver's concentration while driving. At the same time, it also allows the driver and passengers to observe the real-time situation of the vehicle 1000 with a better field of vision and for a longer period of time, making it easier for the driver and passengers to obtain necessary information for driver assistance, such as driving information and entertainment information, and greatly improving the safety of the vehicle 1000 during operation.

[0057] The displayed image can show the vehicle's driving information, various patterns, or play videos, and can be applied to various scenarios such as welcoming guests, creating an atmosphere, watching movies, and working. Specifically, the displayed image is used to display driving parameters, including vehicle speed, engine speed, fuel consumption, tire pressure, warning information, and mileage. It can also be used to display weather temperature, entertainment information, and can be used for dynamic navigation, night vision, and real-view maps.

[0058] The projection device 30 can be, but is not limited to, a projector or a display screen. The display screen can be, but is not limited to, a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED) display screen, a Mini Organic Light-Emitting Diode (mini-LED) display screen, or a Micro Organic Light-Emitting Diode (micro-LED) display screen. In this embodiment, the projection device 30 is illustrated using a projector as an example. The projection light 31 emitted by the projector includes at least one of P-polarized light or S-polarized light.

[0059] It should be noted that the laminated glass 10 can be used as... Figure 1 The vehicle 1000 shown includes a windshield, rear windshield, side windows, and sunroof. In the specific embodiments of this application, the laminated glass 10 is used as an example for the description of the windshield.

[0060] Please continue reading. Figure 2 , Figure 2This is a cross-sectional schematic diagram of a first embodiment of a head-up display system.

[0061] The laminated glass 10 includes a glass body 11 and a functional display component 20. The functional display component 20 is embedded in the edge of the glass body 11 away from the top of the vehicle 1000 in the height direction, and is bonded and fixed to the glass body 11. The functional display component 20 is opposite to the projection device 30 and is used to reflect the projection light 31 emitted by the projection device 30. After reflection, the projection light 31 forms the displayed image, which is observed by the driver and passengers, realizing the head-up display function of the laminated glass 10.

[0062] The laminated glass 10 includes a black border region 101 and a transparent region 102. The transparent region 102 is located in the central region of the laminated glass 10, and the black border region 101 is located around the transparent region 102. In this embodiment, along the height direction of the laminated glass 10, the black border region 101 is located on the side of the transparent region 102 facing the bottom of the vehicle 1000, and the black border region 101 is connected to the transparent region 102. In some embodiments, along the height direction of the laminated glass 10, the black border region 101 is connected to the top side of the transparent region 102. In some embodiments, the black border region 101 may surround and connect to the perimeter of the transparent region 102. The distribution of the black border region 101 is set according to the actual needs of the laminated glass 10. This application does not impose any limitations.

[0063] The viewing area 102 is used by the driver and passengers to observe the external environment of the vehicle 1000. When the laminated glass 10 is used as a windshield, the visible light transmittance of at least a portion of the viewing area 102 is greater than or equal to 70%, further greater than or equal to 80%, and even further greater than or equal to 90%, while the visible light transmittance of the black border area 101 is less than 70%, further less than or equal to 10%, and even further less than or equal to 1%.

[0064] For the functional display component 20, it is at least partially located within the black border area 101. For example, it may be located only within the black border area 101, or it may be located within both the black border area 101 and the perspective area 102.

[0065] The black border area 101 can be achieved by additionally providing a shielding layer on the glass body 11, or by using an intermediate layer with low visible light transmittance in a local area, or by using a structure with low visible light transmittance in the functional display component 20.

[0066] The glass body 11 includes a first glass plate 12, an intermediate layer 13, and a second glass plate 14. The first glass plate 12, the intermediate layer 13, and the second glass plate 14 are sequentially stacked and connected along the thickness direction of the glass body 11. When the laminated glass 10 is installed on the body 200, the first glass plate 12 faces the outside of the vehicle 1000, and the second glass plate 14 faces the inside of the vehicle 1000.

[0067] The first glass plate 12 includes a first surface 121 and a second surface 122. The first surface 121 and the second surface 122 are arranged opposite to each other along the thickness direction of the first glass plate 12. When the laminated glass 10 is installed onto the body 200, the first surface 121 of the first glass plate 12 faces the outside of the vehicle 1000 and can serve as the outer surface of the glass body 11 or the outer surface of the laminated glass 10. The second surface 122 of the first glass plate 12 faces the intermediate layer 13 and serves as the inner surface of the first glass plate 12.

[0068] The second glass plate 14 includes a third surface 141 and a fourth surface 142. The third surface 141 and the fourth surface 142 are arranged opposite to each other along the thickness direction of the second glass plate 14. When the laminated glass 10 is installed on the body 200, the third surface 141 of the second glass plate 14 faces the intermediate layer 13 and serves as the inner surface of the second glass plate 14. The fourth surface 142 of the second glass plate 14 faces the outside of the body 200 and can serve as the inner surface of the glass body 11 or as part of the inner surface of the laminated glass 10.

[0069] The second glass panel 14 also includes a bottom side surface 143. The bottom side surface 143 is a surface in the height direction of the second glass panel 14, the bottom side surface 143 faces away from the top of the vehicle 1000, and the bottom side surface 143 is connected to the third surface 141 and the fourth surface 142.

[0070] The interlayer 13 includes a first adhesive surface 131 and a second adhesive surface 132. The first adhesive surface 131 and the second adhesive surface 132 are disposed opposite to each other along the thickness direction of the interlayer 13. The first adhesive surface 131 of the interlayer 13 is connected to the second surface 122 of the first glass plate 12, and the second adhesive surface 132 of the interlayer 13 is connected to the third surface 141 of the second glass plate 14. The interlayer 13 is used to bond the first glass plate 12 and the second glass plate 14 together to form a laminated glass structure, which improves the structural strength of the laminated glass 10, prevents glass shards from flying and injuring the driver or passengers inside the vehicle 1000 after the first glass plate 12 or the second glass plate 14 breaks, and enables the laminated glass 10 to meet the safety standards and regulatory requirements of more scenarios.

[0071] The visible light transmittance of the interlayer 13, at least within the transparent area 102, needs to be greater than or equal to 70%, and more preferably greater than or equal to 85%. The haze of the interlayer 13 is less than or equal to 1%. Preferably, the haze of the interlayer 13 is less than or equal to 0.4% to further ensure the driver and passengers' visibility of the external environment of the vehicle 1000 through the laminated glass 10. The interlayer 13 can be made of, but is not limited to, a transparent thermoplastic polymer film or a colored thermoplastic polymer film. For example, the material of the interlayer 13 can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), ionomer polymer (SGP), optical adhesive (OCA), liquid optical adhesive (LOCA), and optical resin (OCR). This application does not impose any limitations on this.

[0072] In this embodiment, at least one edge of the second glass plate 14 and the first glass plate 12 is not flush to form a mounting groove 15. It is understood that the glass body 11 also includes the mounting groove 15. The mounting groove 15 is formed by the dimensional difference between the first glass plate 12 and the second glass plate 14. Specifically, the bottom side surface 143 of the second glass plate 14 is not flush with the edge of the first glass plate 12 on the same side, thus forming a mounting groove 15 between the edges of the first glass plate 12 and the second glass plate 14. The intermediate layer 13 may be disposed only within the area of ​​the second glass plate 14, or it may extend into the mounting groove 15 so that the orthographic projection of the first glass plate 12 and the orthographic projection of the intermediate layer 13 completely overlap.

[0073] In the embodiments of this application, the assembly groove 15 is located at the edge of the glass body 11 near the bottom of the vehicle 1000. The assembly groove 15 communicates with the outside in the height direction and the thickness direction of the glass body 11, that is, the assembly groove 15 has grooves in both the height and thickness directions of the glass body 11. The assembly groove 15 is used for assembling the functional display component 20. The assembly groove 15 includes a first groove wall and a second groove wall. The first groove wall and the second groove wall are set at an angle. The orientation of the first groove wall is the same as the orientation of the inner surface of the glass body 11. The second groove wall faces away from the top of the glass body 11. The first groove wall can be regarded as part of the second adhesive surface 132 of the intermediate layer 13, and the second groove wall can be regarded as the bottom side surface 143 of the second glass plate 14.

[0074] The glass body 11 also includes a shielding layer 16. The shielding layer 16 is attached to the second surface 122 of the first glass plate 12. The shielding layer 16 is disposed at the bottom edge of the first adhesive surface 131. That is, the shielding layer 16 is located on the side of the glass body 11 near the bottom of the vehicle 1000. The shielding layer 16 can be a dark ink, which can be printed on the second surface 122 of the first glass plate 12 by processes not limited to screen printing, inkjet printing, etc. In some embodiments, the shielding layer 16 can be a dimming film, in which case the shielding layer 16 can be embedded in the intermediate layer 13.

[0075] The visible light transmittance of the shielding layer 16 needs to be less than or equal to 5%, further less than or equal to 2%, and even further less than or equal to 1%. The lower the visible light transmittance of the shielding layer 16, the higher the contrast between the displayed image and the display background formed after the reflected light 31 in the corresponding area, and a higher color gamut can be achieved, making the displayed image clearer, thereby improving the head-up display effect of the laminated glass 10. In this embodiment, the visible light transmittance of the shielding layer 16 is less than or equal to 0.05%, so that the shielding layer 16 can serve as the display background for the displayed image and can better block external ambient light, avoiding unnecessary interference to the driver's and passengers' vision when observing the displayed image.

[0076] In addition, since the visible light transmittance of the shielding layer 16 is low, the shielding layer 16 can also block sunlight and prevent sunlight from directly shining on the internal structural components of the vehicle 1000, so as to protect the performance of the internal structural components of the vehicle 1000. At the same time, it also prevents the internal structural components from being observed from the outside of the vehicle 1000, thus ensuring the appearance of the laminated glass 10.

[0077] The portion of the glass body 11 covered by the shielding layer 16 can be understood as the "black border area 101" of the laminated glass 10, while the other portion of the laminated glass 10 not covered by the shielding layer 16 constitutes a transparent "transparent area 102".

[0078] In some embodiments, the glass body 11 may further include a heat insulation layer. The heat insulation layer is connected between the first glass plate 12 and the second glass plate 14. For example, the heat insulation layer may be disposed on the second surface 122 of the first glass plate 12, or it may be disposed on the third surface 141 of the second glass plate 14.

[0079] In some embodiments, the orthographic projection of the heat insulation layer along the thickness direction of the glass body 11 may coincide with the orthographic projection of the functional display component 20, or they may be completely offset.

[0080] For example, when the heat insulation layer is disposed on the second surface 122 of the first glass plate 12, the portion of the heat insulation layer located in the black border area 101 can be removed, thereby completely offsetting the orthographic projection of the heat insulation layer from the orthographic projection of the shielding layer 16. This prevents the projected light 31 from forming a ghost image after being reflected by the heat insulation layer, thus further ensuring the clarity of the displayed image. That is, the heat insulation layer is located in the transparent area 102, and the heat insulation layer is connected to one side of the shielding layer 16 in the height direction.

[0081] For example, when the heat insulation layer is disposed on the third surface 141 of the second glass plate 14, the heat insulation layer is located within the transparent area 102. At this time, the orthographic projection of the heat insulation layer is completely offset from the orthographic projection of the functional display component 20. The heat insulation layer does not require additional film removal, reducing the manufacturing difficulty of the laminated glass 10. The heat insulation layer enables the laminated glass 10 to have excellent heat insulation performance, thereby improving the thermal comfort inside the vehicle 1000.

[0082] For example, when the heat insulation layer is disposed on the second surface 122 of the first glass plate 12, the portion of the heat insulation layer located in the black border area 101 is not removed, but the heat insulation layer is completely covered by the shielding layer 16. That is, within the range of the black border area 101, the shielding layer 16 is closer to the functional display component 20 than the heat insulation layer. The orthographic projection of the heat insulation layer and the orthographic projection of the functional display component 20 overlap. However, since the shielding layer 16 is blocked between the heat insulation layer and the functional display component 20, it can also prevent the projected light 31 from forming a ghost image after being reflected by the heat insulation layer, thereby further ensuring the clarity of the displayed image.

[0083] The material of the heat insulation layer can be selected from at least one of single silver nano-coating, double silver nano-coating, triple silver nano-coating, quadruple silver nano-coating, ITO nano-coating, FTO nano-coating, and infrared blocking micron coating. This application does not impose any restrictions.

[0084] The functional display component 20 is used to reflect projected light to realize the head-up display function. The functional display component 20 can reflect at least one of P-polarized light or S-polarized light.

[0085] In some embodiments, the functional display assembly 20 includes a first adhesive layer 21, a functional display layer 22, and a protective layer. The protective layer includes a second adhesive layer 23 and a protective substrate 24. Along the thickness direction of the functional display assembly 20, the first adhesive layer 21, the functional display layer 22, the second adhesive layer 23, and the protective substrate 24 are sequentially stacked and connected. The first adhesive layer 21 is bonded to the glass body 11, and the second adhesive layer 23 is bonded to the functional display layer 22 and the protective substrate 24.

[0086] The visible light transmittance of the first adhesive layer 21 can be greater than or equal to 70%, and further greater than or equal to 85%, and the haze is less than or equal to 1%. Preferably, the haze of the first adhesive layer 21 is less than or equal to 0.4%. The first adhesive layer 21 can be made of, but is not limited to, a transparent thermoplastic polymer film or a colored thermoplastic polymer film. For example, the material of the first adhesive layer 21 can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), etc.

[0087] The visible light transmittance of the second adhesive layer 23 needs to be greater than or equal to 70%, and more preferably greater than or equal to 85%, and the haze is less than or equal to 1%. Preferably, the haze of the first adhesive layer 21 is less than or equal to 0.4%. The second adhesive layer 23 can be made of, but is not limited to, a transparent thermoplastic polymer film, such as the material of the second adhesive layer 23 being selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), etc.

[0088] The functional display layer 22 includes a first connecting surface 222 and a second connecting surface 221. The first connecting surface 222 and the second connecting surface 221 are disposed opposite to each other along the thickness direction of the functional display layer 22. The functional display layer 22 is used to reflect the projection light 31 emitted by the projection device 30 and form a display image. The functional display layer 22 may include, but is not limited to, having a reflective layer. The reflective layer may include at least one metal or a mixture thereof selected from aluminum, tin, titanium, copper, chromium, cobalt, iron, manganese, zirconium, cerium, yttrium, silver, gold, platinum, or palladium. The reflective layer may be formed by stacking multiple thin layers. The reflective layer may also be a transparent nanofilm formed by one or more dielectric layers with alternating refractive indices. The reflective layer may also be formed by stacking multiple polymer films, such as polyethylene terephthalate (PET). The reflective layer may also be a holographic film layer.

[0089] In some embodiments, the reflectivity RL of the functional display layer 22 for P-polarized light p The reflectivity RL of the functional display layer 22 to P-polarized light is greater than or equal to 10%. Preferably, the reflectivity RL of the functional display layer 22 to P-polarized light is... p The reflectivity RL of the functional display layer 22 to P-polarized light is greater than or equal to 15%. Preferably, the reflectivity RL of the functional display layer 22 to P-polarized light is... p The reflectance RL of the functional display layer 22 to P-polarized light is greater than or equal to 20%. More preferably, the reflectance RL of the functional display layer 22 to P-polarized light is... p The reflectance RL of the functional display layer 22 to P-polarized light is greater than or equal to 25%. More preferably, the reflectance RL of the functional display layer 22 to P-polarized light is... p It is greater than or equal to 30%.

[0090] The protective substrate 24 includes a connecting surface 241 and a protective surface 242. The connecting surface 241 and the protective surface 242 are disposed opposite to each other along the thickness direction of the protective substrate 24. The protective substrate 24 can be made of glass or PC material. The protective substrate 24 serves to protect and support the functional display layer 22. In this embodiment, the protective substrate 24 is made of glass. The thickness of the protective substrate 24 is greater than or equal to 0.1 mm and less than or equal to 1.1 mm. For example, the thickness of the protective substrate 24 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 1 mm, 1.1 mm, etc. This application does not impose any limitations on this.

[0091] In some embodiments, the functional display component 20 may further include an antireflection layer. The antireflection layer is disposed on the protective surface 242 of the protective substrate 24. The antireflection layer is used to reduce the reflectivity of S-polarized light in the projected light beam 31. The antireflection layer has a reflectivity of less than or equal to 15% for S-polarized light. Preferably, the antireflection layer has a reflectivity of less than or equal to 10% for S-polarized light. More preferably, the antireflection layer has a reflectivity of less than or equal to 5% for S-polarized light.

[0092] like Figure 3 As shown, in this embodiment, the functional display layer 22 and the protective substrate 24 are stacked along the thickness direction of the functional display component 20. The second connecting surface 221 of the functional display layer 22 and the protective surface 242 of the protective substrate 24 are disposed opposite to each other along the thickness direction of the functional display component 20. The first adhesive layer 21 is connected to the second connecting surface 221 of the functional display layer 22. The second adhesive layer 23 is connected to the first connecting surface 222 of the functional display layer 22 and the connecting surface 241 of the protective substrate 24 to achieve bonding and fixation between the protective substrate 24 and the functional display layer 22.

[0093] The functional display component 20 is mounted in the mounting groove 15 of the glass body 11. Specifically, the first adhesive layer 21 is located between the intermediate layer 13 and the functional display layer 22, and the surface of the first adhesive layer 21 facing away from the functional display layer 22 is connected to a portion of the second adhesive surface 132 of the intermediate layer 13 (i.e., the first groove wall of the mounting groove 15), thereby achieving the bonding and fixation of the functional display component 20 to the glass body 11. Simultaneously, the sides of the first adhesive layer 21 and the second adhesive layer 23 facing the top of the vehicle 1000 in the height direction can both be bonded to the bottom side surface 143 of the second glass plate 14 (i.e., the second groove wall of the mounting groove 15), thereby achieving a fixed connection between the functional display component 20 and the glass body 11. The protective substrate 24 is located away from the intermediate layer 13, and the protective surface 242 of the protective substrate 24 and the fourth surface 142 of the second glass plate 14 together constitute the inner surface of the laminated glass 10. The protective surface 242 of the protective substrate 24 constitutes the inner surface of the functional display component 20.

[0094] In this embodiment, after the functional display component 20 is mounted on the glass body 11, along the thickness direction of the laminated glass 10, the orthographic projection of the functional display layer 22 is completely within the orthographic projection of the shielding layer 16, that is, the functional display layer 22 is completely within the black border area 101. It can be understood that the area of ​​the shielding layer 16 is greater than or equal to the area of ​​the functional display layer 22. The shielding layer 16 serves as the background of the functional display layer 22 to block ambient light to the greatest extent and improve the head-up display effect of the laminated glass 10.

[0095] Before the functional display component 20 and the glass body 11 are laminated or otherwise processed, the thickness of the functional display component 20 is greater than or equal to the thickness of the second glass plate 14. That is, the sum of the thicknesses of the first adhesive layer 21, the functional display layer 22, the second adhesive layer 23 and the protective substrate 24 is greater than or equal to the thickness of the second glass plate 14. During the lamination process of the functional display component 20 and the glass body 11, the intermediate layer 13, the first adhesive layer 21 and the second adhesive layer 23 are fluid. The intermediate layer 13, the first adhesive layer 21 and the second adhesive layer 23 can fully fill the gaps in the functional display component 20 itself and the gaps between the functional display component 20 and the glass body 11. After the lamination process is completed, the thickness of the functional display component 20 is equal to the thickness of the second glass plate 14. That is, the protective surface 242 of the protective substrate 24 is flush with the fourth surface 142 of the second glass plate 14. In other words, the inner surface of the functional display component 20 is flush with the inner surface of the glass body 11. This avoids unevenness on the inner surface of the laminated glass 10, which would create a rather abrupt step difference and ensures the overall aesthetic effect of the laminated glass 10. Meanwhile, the intermediate layer 13, the first adhesive layer 21, and the second adhesive layer 23 fully fill the gaps within the functional display component 20 itself and the gaps between the functional display component 20 and the glass body 11. This not only ensures the sealing of the connection between the first adhesive layer 21, the functional display layer 22, the protective layer, and the glass body 11, but also guarantees the uniformity of the appearance of the laminated glass 10. The bonding of the functional display component 20 and the glass body 11 refers to bonding the functional display component 20 and the glass body 11 together through operations such as heating and pressurization.

[0096] In this embodiment, when the projection device 30 emits projection light 31 onto the laminated glass 10, the projection light 31 is reflected by the protective surface 242 of the protective substrate 24 to form a secondary image, and then reflected by the functional display layer 22 to form a display image. The sum of the thicknesses of the second adhesive layer 23 and the protective substrate 24 is less than or equal to 1.2 mm. That is, the thickness of the protective layer is less than or equal to 1.2 mm, so that the angle of deviation between the secondary image formed by the projection light 31 after reflection by the protective substrate 24 and the functional display layer 22 and the display image is less than 2′, thereby avoiding ghosting problems and ensuring the safety of the vehicle 1000 during operation.

[0097] This application is based on Figure 3 Taking the laminated glass 10 shown as an example, tests were conducted on the second adhesive layer 23 and the protective substrate 24 of different thicknesses. The deviation angle between the displayed image and the secondary image was recorded in Table 1. By determining whether the deviation angle exceeds 2′, it was determined whether a ghost image was formed between the displayed image and the secondary image.

[0098] Table 1 shows the test results of the deviation angle between the displayed image and the secondary image in Comparative Example 1 and Examples 1-3.

[0099]

[0100] As shown in Table 1:

[0101] In Comparative Example 1, the combined thickness of the second adhesive layer 23 and the protective substrate 24 is greater than 1.2 mm. When the projection light 31 is reflected by the functional display layer 22 and the protective substrate 24, the deviation angle between the displayed image and the secondary image is greater than 2′. This will cause ghosting and affect the driver's and passengers' vision, which may easily cause safety problems during driving.

[0102] In Embodiment 1, the sum of the thicknesses of the second adhesive layer 23 and the protective substrate 24 is slightly less than 1.2 mm. However, due to the large thickness of the protective substrate 24, the deviation angle between the displayed image and the sub-image formed after the projection light 31 is reflected by the functional display layer 22 and the protective substrate 24 is slightly greater than 2′. At this time, a slight ghosting problem will be formed, which will slightly affect the safety of the vehicle 1000 during the driving process.

[0103] In embodiments 2 and 3, the combined thickness of the second adhesive layer 23 and the protective substrate 24 is less than 1.2 mm. When the projection light 31 is reflected by the functional display layer 22 and the protective substrate 24, the deviation angle between the displayed image and the sub-image is less than 2′, and no ghosting problem will occur, which can greatly ensure the safety of the vehicle 1000 during operation.

[0104] In related technologies, adding head-up displays (HUDs) to automotive glass to replace traditional instrument panels for displaying driving data is becoming a future trend. To achieve a clearer display, a functional display layer is typically added to the HUD area to improve the brightness and contrast of the reflected image. This functional display layer can be directly applied to the surface of the automotive glass or between the inner and outer glass layers through a coating process for better integration. However, this requires pre-treatment of the coating during glass manufacturing, which places high demands on manufacturing processes and product yield. In other cases, the functional display layer can be placed on a component structure outside the glass body, forming a relatively independent functional display component. This component can then be laminated to the surface of the automotive glass using a partial patch method. However, this partial patch method can create a noticeable step difference between the boundary of the functional display component and the surface of the automotive glass, thus affecting the overall aesthetics of the automotive glass.

[0105] In this embodiment, the laminated glass 10 includes a glass body 11 and a functional display component 20. The height of the second glass plate 14 of the glass body 11 is less than the height of the intermediate layer 13 and the first glass plate 12, so that the glass body 11 has a mounting groove 15. The functional display component 20 is installed in the mounting groove 15 of the glass body 11. The thickness of the functional display component 20 is equal to the thickness of the second glass plate 14, that is, the protective surface 242 of the protective substrate 24 is flush with the fourth surface 142 of the second glass plate 14, so as to avoid unevenness of the inner surface of the laminated glass 10 and the formation of a relatively abrupt step difference, thus ensuring the overall aesthetic effect of the laminated glass 10. Moreover, the sum of the thickness of the protective substrate 24 and the second adhesive layer 23 of the functional display component 20 is less than or equal to 1.2 mm, so that the deviation angle between the secondary image formed by the projection light 31 after reflection by the protective substrate 24 and the functional display layer 22 and the displayed image is less than 2′, thereby avoiding the ghosting problem and ensuring the safety of the vehicle 1000 during operation.

[0106] Furthermore, compared to the prior art of partially attaching patches to the inner surface of automotive glass, the functional display component 20 and the glass body 11 in this embodiment can be assembled before lamination, saving the production process of the laminated glass 10 and thus improving the production efficiency of the laminated glass 10.

[0107] Please see Figure 3 , Figure 3 for Figure 2 A cross-sectional schematic diagram of a second embodiment of the head-up display system shown.

[0108] In this embodiment, unlike the structure of the laminated glass 10 in the head-up display system 100 in the first embodiment described above, the functional display component 20 in this embodiment includes a functional display layer 22, a second adhesive layer 23, and a protective substrate 24; that is, the functional display component 20 does not include the first adhesive layer 21. Along the thickness direction of the functional display component 20, the functional display layer 22, the second adhesive layer 23, and the protective substrate 24 are sequentially stacked and connected.

[0109] like Figure 3 As shown, the functional display component 20 is mounted in the mounting groove 15 of the glass body 11 and connected to the first and second groove walls of the mounting groove 15. That is, the functional display component 20 is bonded to the second adhesive surface 132 of the intermediate layer 13 and the bottom side surface 143 of the second glass plate 14, achieving a fixed connection between the functional display component 20 and the glass body 11. Specifically, the second connecting surface 221 of the functional display layer 22 faces the intermediate layer 13 and is directly bonded to the second adhesive surface 132 of the intermediate layer 13, achieving a bonded and fixed connection between the functional display layer 22 and the glass body 11, without the need for additional adhesive material between the glass body 11 and the functional display layer 22. The protective substrate 24 is located on the side of the functional display layer 22 facing away from the intermediate layer 13. The second adhesive layer 23 connects the connecting surface 241 of the protective substrate 24 and the first connecting surface 222 of the functional display layer 22, achieving a bonded and fixed connection between the protective substrate 24 and the glass body 11. Meanwhile, the second adhesive layer 23 can be bonded to the bottom side 143 of the second glass plate 14 on one side facing the top of the vehicle 1000 in the height direction, thereby achieving a fixed connection between the functional display component 20 and the glass body 11.

[0110] In this embodiment, before the functional display component 20 and the glass body 11 are laminated, the thickness of the functional display component 20 is greater than or equal to the thickness of the second glass plate 14. That is, the sum of the thicknesses of the functional display layer 22, the second adhesive layer 23, and the protective substrate 24 is greater than or equal to the thickness of the second glass plate 14. After the functional display component 20 and the glass body 11 are laminated due to the fluidity of the intermediate layer 13 and the second adhesive layer 23, the thickness of the functional display component 20 is equal to the thickness of the second glass plate 14. That is, the protective surface 242 of the protective substrate 24 is flush with the fourth surface 142 of the second glass plate 14, so as to avoid unevenness on the inner surface of the laminated glass 10 and the formation of a relatively abrupt step difference, thus ensuring the overall aesthetic effect of the laminated glass 10.

[0111] In this embodiment, the shielding layer 16 is made of a dimming film to meet the requirements of local adjustment of visible light transmittance of the laminated glass 10 in various scenarios. For example, when black border display is required, the dimming film is in an opaque state to improve the contrast between the displayed image and the background. When no display is required, the dimming film is in a transparent state to achieve maximum transparency of the laminated glass 10. The dimming film is embedded in the intermediate layer 13. For example, the intermediate layer 13 can be two thermoplastic polymer films, with the dimming film sandwiched between the two thermoplastic polymer films. In some embodiments, the material of the shielding layer 16 can also be a dark ink, in which case the shielding layer 16 can be disposed on the second surface 122 of the first glass plate 12.

[0112] In this embodiment, the same content as in the first embodiment described above can be found in the content description of the first embodiment, and will not be repeated here.

[0113] Please see Figure 4 , Figure 4 for Figure 2 A cross-sectional schematic diagram of a third embodiment of the head-up display system shown.

[0114] In this embodiment, unlike the structure of the laminated glass 10 in the head-up display system 100 in the first embodiment described above, the functional display component 20 in this embodiment includes a first adhesive layer 21, a functional display layer 22, and a protective substrate 24. That is, the protective layer of the functional display component 20 does not include the second adhesive layer 23. Along the thickness direction of the functional display component 20, the first adhesive layer 21, the functional display layer 22, and the protective substrate 24 are sequentially stacked and connected.

[0115] like Figure 4 As shown, the functional display component 20 is mounted in the assembly groove 15 of the glass body 11 and connected to the first and second groove walls of the assembly groove 15, thereby achieving a fixed connection between the functional display component 20 and the glass body 11. Specifically, the functional display layer 22 is directly disposed on the protective substrate 24, that is, the first connecting surface 222 of the functional display layer 22 is connected to the connecting surface 241 of the protective substrate 24. The second connecting surface 221 of the functional display layer 22 faces the intermediate layer 13, and the first adhesive layer 21 is located between the functional display layer 22 and the intermediate layer 13, and connects the second connecting surface 221 of the functional display layer 22 and the second adhesive surface 132 of the intermediate layer 13, thereby achieving a bonded and fixed connection between the functional display layer 22 and the protective substrate 24 and the glass body 11. At the same time, one side of the first adhesive layer 21 in the height direction can be bonded to the bottom side surface 143 of the second glass plate 14, thereby achieving a fixed connection between the functional display component 20 and the glass body 11.

[0116] In this embodiment, before the functional display component 20 and the glass body 11 are laminated, the thickness of the functional display component 20 is greater than or equal to the thickness of the second glass plate 14. That is, the sum of the thicknesses of the first adhesive layer 21, the functional display layer 22, and the protective substrate 24 is greater than or equal to the thickness of the second glass plate 14. Under the action of the fluidity of the intermediate layer 13 and the first adhesive layer 21, after the functional display component 20 and the glass body 11 are laminated, the thickness of the functional display component 20 is equal to the thickness of the second glass plate 14. That is, the protective surface 242 of the protective substrate 24 is flush with the fourth surface 142 of the second glass plate 14, so as to avoid unevenness on the inner surface of the laminated glass 10 and form a relatively abrupt step difference, thus ensuring the overall aesthetic effect of the laminated glass 10.

[0117] In this embodiment, the same content as in the first embodiment described above can be found in the content description of the first embodiment, and will not be repeated here.

[0118] Please see Figure 5 , Figure 5 for Figure 2 A cross-sectional schematic diagram of the fourth embodiment of the head-up display system shown.

[0119] In this embodiment, unlike the head-up display system 100 in the third embodiment described above, the laminated glass 10 in this embodiment does not include the shielding layer 16, and the first adhesive layer 21 in the functional display component 20 is made of a material with low visible light transmittance. For example, the visible light transmittance of the first adhesive layer 21 is less than or equal to 1%.

[0120] It is understood that the first adhesive layer 21 of the laminated glass 10 in this embodiment can replace the shielding layer 16 and serve as the "black border area 101" of the laminated glass 10, playing the role of a display background for the displayed image.

[0121] In this embodiment, the same content as in the third embodiment described above can be found in the content description of the third embodiment described above, and will not be repeated here.

[0122] Please see Figure 6 , Figure 6 for Figure 2 A cross-sectional schematic diagram of the fifth embodiment of the head-up display system shown.

[0123] In this embodiment, unlike the structure of the head-up display system 100 in the fourth embodiment described above, the laminated glass 10 in this embodiment further includes a shielding layer 16. The shielding layer 16 is made of a dimming film, and the first adhesive layer 21 in the functional display component 20 can be made of a material with high visible light transmittance.

[0124] like Figure 6As shown, the shielding layer 16 is mounted in the mounting groove 15 of the glass body 11 and connected to the first groove wall and part of the second groove wall of the mounting groove 15, that is, the shielding layer 16 is connected to the second adhesive surface 132 of the intermediate layer 13 and the bottom side surface 143 of the second glass plate 14. The functional display component 20 is mounted in the mounting groove 15 and connected to part of the second groove wall. The functional display component 20 is located on the side of the shielding layer 16 facing away from the intermediate layer 13. Along the thickness direction of the functional display component 20, the shielding layer 16, the first adhesive layer 21, the functional display layer 22 and the protective substrate 24 are sequentially stacked and connected. The first adhesive layer 21 bonds the functional display layer 22 and the protective substrate 24 to the shielding layer 16 and the bottom side surface 143 of the second glass plate 14, thereby achieving the bonding and fixation of the functional display component 20 to the glass body 11.

[0125] In this embodiment, before the functional display component 20 and the glass body 11 are laminated, the sum of the thicknesses of the shielding layer 16 and the functional display component 20 is greater than or equal to the thickness of the second glass plate 14. That is, the sum of the thicknesses of the shielding layer 16, the first adhesive layer 21, the functional display layer 22, and the protective substrate 24 is greater than or equal to the thickness of the second glass plate 14. Under the action of the fluidity of the intermediate layer 13 and the first adhesive layer 21, after the functional display component 20 and the glass body 11 are laminated, the sum of the thicknesses of the shielding layer 16 and the functional display component 20 is equal to the thickness of the second glass plate 14. That is, the protective surface 242 of the protective substrate 24 is flush with the fourth surface 142 of the second glass plate 14, so as to avoid unevenness on the inner surface of the laminated glass 10 and form a relatively abrupt step difference, thus ensuring the overall aesthetic effect of the laminated glass 10.

[0126] In this embodiment, the same content as in the fourth embodiment described above can be found in the content description of the fourth embodiment, and will not be repeated here.

[0127] Please see Figure 7 , Figure 7 for Figure 2 A cross-sectional schematic diagram of the sixth embodiment of the head-up display system shown.

[0128] In this embodiment, unlike the head-up display system 100 in the first embodiment described above, the functional display component 20 in this embodiment does not include the first adhesive layer 21 and the protective layer; that is, the thickness of the protective layer can be 0 mm. Furthermore, the height of the second glass plate 14 is the same as the height of the first glass plate 12. Simultaneously, to ensure that no ghosting occurs after the fourth surface 142 of the second glass plate 14 reflects the projected light 31, the thickness of the second glass plate 14 is reduced. At this time, the functional display layer 22 is located between the second glass plate 14 and the first glass plate 12, and is embedded inside the intermediate layer 13.

[0129] When the projection device 30 emits projection light 31 onto the laminated glass 10, the projection light 31 is reflected by the fourth surface 142 of the second glass plate 14 to form a secondary image, and then reflected by the functional display layer 22 to form a display image. The thickness of the intermediate layer 13 located between the functional display layer 22 and the second glass plate 14, combined with the thickness of the second glass plate 14, is less than or equal to 1 mm. This means the distance between the first connecting surface 222 of the functional display layer 22 and the fourth surface 142 of the second glass plate 14 is less than or equal to 1 mm. This ensures that the angle of deviation between the display image and the secondary image formed by the reflection of the projection light 31 from the functional display layer 22 and the second glass plate 14 is less than 2′, thus avoiding ghosting and ensuring the safety of the vehicle 1000 during operation. Simultaneously, the reduced thickness of the second glass plate 14 reduces the thickness of the laminated glass 10 to a certain extent.

[0130] In this embodiment, the same content as in the first embodiment described above can be found in the content description of the first embodiment, and will not be repeated here.

[0131] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A laminated glass, characterized in that, The laminated glass comprises: A glass body, comprising a first glass plate, an intermediate layer, and a second glass plate, wherein the first glass plate, the intermediate layer, and the second glass plate are sequentially stacked and connected along the thickness direction of the glass body, and the second glass plate is not flush with at least one edge of the first glass plate to form an assembly groove. A functional display component is disposed in the assembly slot and is used to reflect projected light to realize a head-up display function.

2. The laminated glass according to claim 1, characterized in that, The inner surface of the functional display component is flush with the inner surface of the glass body.

3. The laminated glass according to claim 1, characterized in that, The functional display component includes a functional display layer and a protective layer, which are stacked along the thickness direction of the functional display component. In the thickness direction of the functional display component, the functional display layer is located between the protective layer and the glass body. The thickness of the protective layer is less than or equal to 1.2 mm.

4. The laminated glass according to claim 3, characterized in that, The protective layer includes a protective substrate, which is attached to the surface of the functional display layer facing away from the intermediate layer.

5. The laminated glass according to claim 4, characterized in that, The functional display component further includes a first adhesive layer, through which the functional display component is connected to the glass body.

6. The laminated glass according to claim 5, characterized in that, The protective layer further includes a second adhesive layer, which is connected to the functional display layer and the protective substrate.

7. The laminated glass according to claim 3, characterized in that, The protective layer includes a protective substrate and a second adhesive layer. The protective substrate is connected to the surface of the functional display layer facing away from the intermediate layer, and the second adhesive layer is connected to the functional display layer and the protective substrate.

8. The laminated glass according to claim 5 or 6, characterized in that, The visible light transmittance of the first adhesive layer is less than or equal to 1%.

9. The laminated glass according to any one of claims 4-7, characterized in that, The thickness of the protective substrate is greater than or equal to 0.1 mm and less than or equal to 1.1 mm.

10. The laminated glass according to any one of claims 4-7, characterized in that, The protective substrate is made of glass or PC material.

11. The laminated glass according to claim 3, characterized in that, The functional display component further includes an anti-reflective layer, which is attached to the surface of the protective layer facing away from the functional display layer.

12. The laminated glass according to claim 1, characterized in that, The laminated glass includes a black border area and a transparent area, the black border area being located around the transparent area, and the functional display component being at least partially located within the black border area.

13. The laminated glass according to any one of claims 1-7, characterized in that, The glass body further includes a shielding layer, which is connected to the inner surface of the first glass plate, or the shielding layer is embedded in the interior of the intermediate layer, or the shielding layer is located in the mounting groove; along the thickness direction of the laminated glass, the orthographic projection of the functional display layer is completely within the orthographic projection range of the shielding layer.

14. The laminated glass according to claim 13, characterized in that, When the shielding layer is disposed on the inner surface of the first glass plate, the shielding layer is made of dark ink; when the shielding layer is embedded in the intermediate layer, or when the shielding layer is located in the assembly groove, the shielding layer is made of dimming film.

15. The laminated glass according to claim 13, characterized in that, The glass body further includes a heat insulation layer, which is disposed between the first glass plate and the second glass plate; Along the thickness direction of the glass body, the orthographic projection of the heat insulation layer coincides with or is completely offset from the orthographic projection of the functional display component.

16. A head-up display system, characterized in that, The head-up display system includes a projection device and a laminated glass as described in any one of claims 1-15. The projection device emits projection light to the functional display component of the laminated glass. The projection light is reflected by the surface of the protective layer away from the functional display layer to form a secondary image. The projection light is reflected by the surface of the functional display layer toward the protective layer to form a display image. The angle of deviation between the displayed image and the secondary image is less than 2′.

17. A laminated glass, characterized in that, The laminated glass comprises: The glass body includes a first glass plate, an intermediate layer, and a second glass plate, which are sequentially stacked and connected along the thickness direction of the glass body. A functional display layer is embedded inside the intermediate layer. The functional display layer is used to reflect projected light to realize the head-up display function. The sum of the thickness of the intermediate layer and the thickness of the second glass plate located between the functional display layer and the second glass plate is less than or equal to 1 mm.

18. A head-up display system, characterized in that, The head-up display system includes a projection device and a laminated glass as described in claim 17. The projection device emits projection light to the functional display component of the laminated glass. The projection light is reflected by the surface of the second glass plate away from the functional display layer to form a secondary image. The projection light is reflected by the surface of the functional display layer toward the second glass plate to form a display image. The angle of deviation between the displayed image and the secondary image is less than 2′.

19. A means of transportation, characterized in that, The vehicle includes a body and a head-up display system as described in claim 16 or 18, wherein the laminated glass and the projection device are both mounted on the body, and the projection device is located inside the body.

Images