Vehicle window glass and vehicle

Abstract

The application provides a vehicle window glass and a vehicle. The vehicle window glass comprises a glass body and a colored layer. The glass body has a signal transmission area. The glass body comprises an outer glass plate, an intermediate layer and an inner glass plate which are sequentially stacked, and the intermediate layer is connected between the outer glass plate and the inner glass plate. The outer glass plate and the inner glass plate are both high-transparency glass. The colored layer is located between the outer glass plate and the inner glass plate, and / or the colored layer is located on a side of the inner glass plate away from the intermediate layer. The colored layer is used for blocking near-infrared rays and / or blocking ultraviolet rays. The technical scheme of the application can improve the color consistency between the high-transparency glass combination and the traditional glass combination, thereby enhancing the overall aesthetic appearance of the vehicle.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more particularly to a window glass and a vehicle. Background Technology

[0002] With the continuous advancement of technology, modern automobiles are generally equipped with various types of optical sensors, such as lidar systems and near-infrared cameras, to enable functions such as navigation and autonomous driving. These optical sensors can be installed inside the car and protected by the windows. Therefore, the windows need to have high transmittance for the optical sensor signals; that is, windows typically use a combination of high-transmittance glass to ensure the smooth transmission of optical sensor signals.

[0003] However, there is a certain color difference between this high-transparency glass combination and traditional glass combinations (such as green glass + clear glass, green glass + green glass, etc.). This color difference can easily have an adverse effect on the appearance and user experience of the car when the high-transparency glass combination is applied to the car. Summary of the Invention

[0004] Embodiments of this application provide a vehicle window glass and vehicle that can improve the color consistency between high-transparency glass assemblies and conventional glass assemblies, thereby enhancing the aesthetics of the vehicle.

[0005] In a first aspect, this application provides a vehicle window glass, the vehicle window glass comprising a glass body and a tinted layer, the glass body having a signal transmission area;

[0006] The glass body includes an outer glass plate, a middle layer and an inner glass plate stacked sequentially, wherein the middle layer connects the outer glass plate and the inner glass plate;

[0007] Both the outer glass panel and the inner glass panel are high-transparency glass.

[0008] The colored layer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer;

[0009] The colored layer is used to block near-infrared rays and / or block ultraviolet rays.

[0010] Understandably, optical sensors can be installed inside a car and protected by windows to avoid the effects of external environments such as dust, rain, snow, or frost. In this case, the windows need to have high transmittance for the signals emitted and received by the optical sensors to ensure smooth signal transmission. For example, since the wavelength of LiDAR signals is similar to that of near-infrared light, vehicles with built-in LiDAR typically use glass materials with high near-infrared transmittance for their windows; that is, the windows usually use a combination of high-transmittance glass and high-transmittance glass (such as ultra-clear glass + ultra-clear glass). However, there is a certain color difference between this high-transmittance glass combination and traditional glass combinations (such as green glass + clear glass, green glass + green glass, etc.). When high-transmittance glass combinations and traditional glass combinations are used simultaneously in the same car, or when high-transmittance glass combinations and traditional glass combinations are used simultaneously in cars of the same series but different configurations, this color difference between the high-transmittance glass combination and the traditional glass combination will affect the car's appearance.

[0011] Therefore, in the embodiments of this application, both the outer and inner glass panels are high-transparency glass. Compared to ordinary glass, high-transparency glass has a higher light transmittance, presenting a clearer and more transparent visual effect. Thus, by setting a tinted layer in the window glass, the color of the tinted layer can directly affect the displayed color of the window glass. Furthermore, by adjusting the color of the tinted layer, the color of the window glass can be precisely adjusted, thereby reducing the color difference between high-transparency glass combinations and traditional glass combinations in the same vehicle (or vehicles of the same series but different configurations), maintaining color consistency between them, and thus improving the overall aesthetics of the vehicle.

[0012] In one possible implementation, the Lab value of the reflected color of the window glass measured from the outside of the vehicle has an a value less than -2.6 and a b value between -9.04 and -0.28.

[0013] In one possible implementation, the colored layer is connected between the outer glass plate and the intermediate layer, and / or, the colored layer is connected between the intermediate layer and the inner glass plate;

[0014] The colored layer is used to block near-infrared rays, and the projection of the colored layer on the glass body along the thickness direction of the glass body is offset from the signal transmission area.

[0015] In one possible implementation, the window glass further includes an enhanced ultraviolet absorption layer;

[0016] The enhanced ultraviolet absorption layer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer.

[0017] In one possible implementation, the colored layer is connected between the intermediate layer and the inner glass plate, and / or between the outer glass plate and the intermediate layer, and / or on the side of the inner glass plate opposite to the intermediate layer;

[0018] The colored layer is used to block ultraviolet rays.

[0019] In one possible implementation, the colored layer forms the intermediate layer, and the colored layer is used to block ultraviolet light.

[0020] In one possible implementation, the colored layer is a single-layer structure.

[0021] In one possible implementation, the colored layer includes a first sub-layer and a second sub-layer, wherein the first sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate;

[0022] The second sub-layer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer;

[0023] The first sub-layer is used to block near-infrared rays, and the projection of the first sub-layer onto the glass body along the thickness direction of the glass body is offset from the signal transmission area.

[0024] In one possible implementation, the second sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer;

[0025] The second sub-layer is used to adjust the color of the window glass.

[0026] In one possible implementation, the second sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer;

[0027] The second sublayer is used to block ultraviolet rays.

[0028] In one possible implementation, the colored layer includes a first sub-layer and a second sub-layer;

[0029] The first sub-layer forms the intermediate layer and is used to block ultraviolet rays;

[0030] The second sublayer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer.

[0031] In one possible implementation, the second sublayer is connected between the first sublayer and the outer glass plate, and / or between the first sublayer and the inner glass plate;

[0032] The second sub-layer is used to block near-infrared rays, and the projection of the second sub-layer onto the glass body along the thickness direction of the glass body is offset from the signal transmission area.

[0033] In one possible implementation, the second sublayer is connected between the first sublayer and the outer glass plate, and / or between the first sublayer and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer;

[0034] The second sub-layer is used to adjust the color of the window glass.

[0035] In one possible implementation, the colored layer includes a first sub-layer and a second sub-layer;

[0036] The first sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer;

[0037] The second sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer;

[0038] One of the first sub-layer and the second sub-layer is used to block ultraviolet rays, and the other is used to adjust the color of the window glass.

[0039] In one possible implementation, the window glass further includes a near-infrared reflective layer;

[0040] The near-infrared reflective layer is located between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate;

[0041] The projection of the near-infrared reflective layer onto the glass body along the thickness direction of the glass body is offset from the signal transmission area.

[0042] In one possible implementation, the near-infrared transmittance of the colored layer is less than or equal to 20%; and / or,

[0043] The total solar transmittance of the area covered by the colored layer in the vehicle window glass is less than or equal to 55%.

[0044] In one possible implementation, the near-infrared transmittance of the near-infrared reflective layer is less than or equal to 20%; and / or,

[0045] The total solar transmittance of the area covered by the near-infrared reflective layer in the vehicle window glass is less than or equal to 55%.

[0046] In one possible implementation, the colored layer has a transmittance of less than or equal to 2% for ultraviolet light with a wavelength less than or equal to 410 nm.

[0047] In one possible implementation, the enhanced ultraviolet absorption layer has a transmittance of less than or equal to 2% for ultraviolet light with a wavelength less than or equal to 410 nm.

[0048] In one possible implementation, the window glass further includes an anti-reflective layer attached to the side of the inner glass panel away from the intermediate layer. The projection of the anti-reflective layer onto the glass body along the thickness direction of the glass body at least covers the signal transmission area. The anti-reflective layer is used to reduce near-infrared reflection.

[0049] In one possible implementation, the outer glass panel and / or the inner glass panel are ultra-clear glass.

[0050] In one possible implementation, the signal transmission region has a transmittance of greater than or equal to 80% for near-infrared light with wavelengths in the range of 800nm-1600nm incident at an incident angle of 50°-70°.

[0051] In one possible implementation, the outer glass plate and / or the inner glass plate have a transmittance of greater than or equal to 90% for near-infrared light with a wavelength in the range of 800nm-1600nm that is incident vertically.

[0052] Secondly, this application also provides a vehicle, the vehicle including a body panel and a window glass as described above, the window glass being mounted on the body panel. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application;

[0054] Figure 2 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the window glass structure of the first embodiment obtained by cutting along section line AA.

[0055] Figure 3 It is along Figure 1 A second cross-sectional view of a portion of the window glass structure of the first embodiment obtained by cutting along section line AA;

[0056] Figure 4 It is along Figure 1A third cross-sectional view of a portion of the window glass structure of the first embodiment obtained by cutting along section line AA;

[0057] Figure 5 It is along Figure 1 A fourth cross-sectional view of a portion of the window glass structure of the first embodiment obtained by cutting along section line AA;

[0058] Figure 6 It is along Figure 1 A fifth cross-sectional view of a portion of the window glass structure of the first embodiment obtained by cutting along section line AA;

[0059] Figure 7 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the window glass structure of the second embodiment, obtained by cutting along section line AA.

[0060] Figure 8 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the window glass structure of the second embodiment, obtained by cutting along section line AA.

[0061] Figure 9 It is along Figure 1 A cross-sectional schematic diagram of a portion of the structure of the vehicle window glass in the third embodiment, obtained by cutting along the cutting line AA shown.

[0062] Figure 10 It is along Figure 1 A cross-sectional schematic diagram of a portion of the structure of the vehicle window glass in the fourth embodiment, obtained by cutting along the cutting line AA shown.

[0063] Figure 11 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the window glass structure of the fifth embodiment, obtained by cutting along section line AA.

[0064] Figure 12 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the window glass structure of the fifth embodiment, obtained by cutting along section line AA.

[0065] Figure 13 It is along Figure 1 A cross-sectional schematic diagram of a portion of the structure of the vehicle window glass in the sixth embodiment, obtained by cutting along the cutting line AA shown.

[0066] Figure 14 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the window glass structure of the seventh embodiment, obtained by cutting along section line AA.

[0067] Figure 15 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the window glass structure of the seventh embodiment, obtained by cutting along section line AA.

[0068] Figure 16 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the window glass structure of the eighth embodiment, obtained by cutting along section line AA.

[0069] Figure 17 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the window glass structure of the eighth embodiment, obtained by cutting along section line AA.

[0070] Figure label:

[0071] Vehicle 200, body sheet metal 210, optical sensor 220, window glass 100, glass body 10, colored layer 20, signal transmission area 11, outer glass panel 12, intermediate layer 13, inner glass panel 14, enhanced ultraviolet absorption layer 30, first sub-layer 21, second sub-layer 22, anti-reflection layer 40, near-infrared reflective layer 50. Detailed Implementation

[0072] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0073] And / or: This is simply a way of describing the relationship between related objects. It indicates that there can be three kinds of relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0074] Multiple: refers to two or more.

[0075] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0076] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0077] An embodiment of this application provides a vehicle window glass and a vehicle.

[0078] Please see Figure 1 , Figure 1 This is a schematic diagram of a vehicle 200 provided in an embodiment of this application.

[0079] Vehicle 200 may include a window glass 100, a body panel 210, and an optical sensor 220. The window glass 100 is mounted on the body panel 210 and together with the body panel 210 forms an accommodating space for vehicle 200. The optical sensor 220 is located within the accommodating space of vehicle 200. Signals emitted or received by the optical sensor 220 can be transmitted through the window glass 100. The window glass 100 may be one or more of the following: windshield, rear windshield, sunroof, side windows, and corner windows of vehicle 200. The optical sensor 220 may be one or a combination of multiple of the following: lidar, near-infrared camera, visible light camera, thermal imager, etc.

[0080] It should be noted that, Figure 1 The purpose of this illustration is solely to depict the connection relationships between the vehicle window glass 100, the body sheet metal 210, and the optical sensor 220, and is not to specifically limit the connection positions, specific structures, or quantities of each component. In other embodiments of this application, the vehicle 200 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0081] The following explanation will use the windshield of vehicle 200 as the example of window glass 100 and optical sensor 220 as LiDAR, but it should be understood that it is not limited to this.

[0082] Understandably, LiDAR can be installed inside a car and protected by the windows to avoid the effects of external environmental factors such as dust, rain, snow, or frost. In this case, the windows need to have high transmittance for the LiDAR signals to be emitted and received, ensuring smooth transmission. Currently, because the wavelength of LiDAR signals is similar to that of near-infrared light, vehicles with built-in LiDAR typically use glass materials with high near-infrared transmittance for the windows; that is, the windows usually use a combination of high-transmittance glass and high-transmittance glass (such as ultra-clear glass + ultra-clear glass). However, there is a certain color difference between this high-transmittance glass combination and traditional glass combinations (such as green glass + clear glass, green glass + green glass, etc.). When both high-transmittance glass combinations and traditional glass combinations are used in the same car, for example, a high-transmittance glass combination for the windshield and a traditional glass combination for the side windows, this color difference will affect the overall appearance of the car and the user experience. Similarly, when high-transparency glass combinations and traditional glass combinations are used simultaneously in cars of the same series but different configurations—for example, a windshield using a high-transparency glass combination in a higher-configuration model and a windshield using a traditional glass combination in a lower-configuration model—the color difference between these two combinations will also affect the car's appearance and user experience.

[0083] Based on this, embodiments of this application provide a vehicle window glass 100 that can improve the color consistency between high-transparency glass assemblies and traditional glass assemblies, thereby enhancing the overall aesthetics of the vehicle 200. It should be noted that the optical sensor 220 signals mentioned below all refer to lidar signals.

[0084] It is understood that the high-transmittance glass in this application refers to glass with a near-infrared transmittance of greater than or equal to 90% in the wavelength range of 800nm-1600nm (including the endpoint values ​​of 800nm ​​and 1600nm).

[0085] The structure of the vehicle window glass 100 will be described in detail below through eight specific embodiments.

[0086] First embodiment:

[0087] Please refer to the following: Figure 1 and Figure 2 , Figure 2 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the structure of the window glass 100 of the first embodiment, obtained by cutting along the cutting line AA.

[0088] For ease of description, the length direction of the window glass 100 is defined as the X direction, the width direction as the Y direction, and the thickness direction as the Z direction. The X, Y, and Z directions are all perpendicular to each other.

[0089] The vehicle window glass 100 may include a glass body 10 and a tinted layer 20. The tinted layer 20 is attached to the glass body 10 and is used to adjust the color of the vehicle window glass 100. The glass body 10 has a signal transmission area 11 (e.g., Figure 2 (As shown by the area between the two dashed lines in the diagram). The signal transmission area 11 is the area on the window glass 100 where the signal from the optical sensor 220 can pass through. The signal from the optical sensor 220 can be the signal emitted and received by the optical sensor 220. That is, all signals emitted or received by the optical sensor 220 will pass through the signal transmission area 11 on the window glass 100.

[0090] The glass body 10 may include an outer glass panel 12, an intermediate layer 13, and an inner glass panel 14. The intermediate layer 13 connects the outer glass panel 12 and the inner glass panel 14. That is, in the thickness direction (Z direction in the figure), the outer glass panel 12, the intermediate layer 13, and the inner glass panel 14 are stacked sequentially. The outer glass panel 12 is located near the exterior of the vehicle 200, and the inner glass panel 14 is located near the interior of the vehicle 200.

[0091] In this embodiment, the outer glass plate 12 has a high near-infrared transmittance. That is, the outer glass plate 12 can be high-transmittance glass. Preferably, the outer glass plate 12 is ultra-clear glass (i.e., ultra-transparent glass).

[0092] In one possible implementation, the vertical transmittance of near-infrared light with wavelengths in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) on the outer glass plate 12 is greater than or equal to 90%. Specifically, the vertical transmittance of near-infrared light with wavelengths in the range of 840nm-940nm (inclusive of the endpoints 840nm and 940nm) on the outer glass plate 12 is greater than or equal to 90%. The vertical transmittance of near-infrared light on the outer glass plate 12 is the transmittance when near-infrared light is perpendicularly incident on the outer glass plate 12, that is, the transmittance passing through the outer glass plate 12 along its thickness direction (Z direction in the illustration). For example, the vertical transmittance of near-infrared light with a wavelength of 905nm on the outer glass plate 12 is greater than or equal to 90%.

[0093] In this embodiment, specifically, the vertical transmittance of near-infrared light with wavelengths in the range of 1500nm-1600nm (including the endpoints 1500nm and 1600nm) on the outer glass plate 12 is also greater than or equal to 90%. For example, the vertical transmittance of near-infrared light with a wavelength of 1550nm on the outer glass plate 12 is greater than or equal to 90%.

[0094] In this embodiment, the inner glass plate 14 also has a high near-infrared transmittance. That is, the inner glass plate 14 can be a high-transmittance glass. Preferably, the inner glass plate 14 is ultra-clear glass (i.e., ultra-transparent glass).

[0095] In one possible implementation, the vertical transmittance of near-infrared light with wavelengths in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) on the inner glass plate 14 is greater than or equal to 90%. Specifically, the vertical transmittance of near-infrared light with wavelengths in the range of 840nm-940nm (inclusive of the endpoints 840nm and 940nm) on the inner glass plate 14 is greater than or equal to 90%. The vertical transmittance of near-infrared light on the inner glass plate 14 is the transmittance when near-infrared light is perpendicularly incident on the inner glass plate 14, that is, the transmittance passing through the inner glass plate 14 along its thickness direction (Z direction in the illustration). For example, the vertical transmittance of near-infrared light with a wavelength of 905nm on the inner glass plate 14 is greater than or equal to 90%.

[0096] In this embodiment, specifically, the vertical transmittance of near-infrared light with wavelengths in the range of 1500nm-1600nm (including the endpoints 1500nm and 1600nm) on the inner glass plate 14 is also greater than or equal to 90%. For example, the vertical transmittance of near-infrared light with a wavelength of 1550nm on the inner glass plate 14 is greater than or equal to 90%.

[0097] In this embodiment, since the wavelength band of the optical sensor 220 signal (i.e., the lidar signal) is similar to that of near-infrared light, both the outer glass plate 12 and the inner glass plate 14 have high transmittance for the optical sensor 220 signal. For example, the vertical transmittance of the 905nm optical sensor 220 signal on both the outer glass plate 12 and the inner glass plate 14 is greater than or equal to 90%. Similarly, the vertical transmittance of the 1550nm optical sensor 220 signal on both the outer glass plate 12 and the inner glass plate 14 is greater than or equal to 90%.

[0098] It is understandable that by making the outer glass plate 12 and the inner glass plate 14 have high transmittance to the signal of the optical sensor 220, the problem of the signal of the optical sensor 220 being blocked by the outer glass plate 12 and the inner glass plate 14 can be avoided, so that the optical sensor 220 can effectively detect the target and maintain its detection accuracy.

[0099] In this embodiment, the colored layer 20 is connected between the outer glass panel 12 and the intermediate layer 13. And / or, the colored layer 20 is connected between the intermediate layer 13 and the inner glass panel 14. The colored layer 20 is used to adjust the color of the vehicle window glass 100 and block near-infrared rays. The projection of the colored layer 20 onto the glass body 10 along the thickness direction of the glass body 10 is offset from the signal transmission area 11.

[0100] The colored layer 20 is a single-layer structure. For example, the colored layer 20 can be a near-infrared reflective (IRR) coating. The transmittance of the colored layer 20 to near-infrared light is less than or equal to 20%. The total solar transmittance (TTS) of the area covered by the colored layer 20 in the vehicle window glass 100 is less than or equal to 55%.

[0101] Understandably, since the outer glass panel 12 has a high near-infrared transmittance, it is necessary to enhance the near-infrared protection capability of the vehicle window glass 100 to avoid heat accumulation caused by near-infrared radiation. Therefore, this embodiment achieves effective blocking of near-infrared rays by setting a colored layer 20 with high near-infrared reflectivity between the outer glass panel 12 and the intermediate layer 13 and / or between the intermediate layer 13 and the inner glass panel 14. This avoids the phenomenon of increased interior temperature caused by excessively high near-infrared transmittance of the outer glass panel 12, thereby improving the thermal insulation performance and comfort of the vehicle 200.

[0102] It is understandable that, since the wavelength of the signal from the optical sensor 220 is close to that of near-infrared light, in order to avoid the colored layer 20 from obstructing the transmission of the signal from the optical sensor 220, this embodiment sets the projection of the colored layer 20 on the glass body 10 along the thickness direction of the glass body 10 to be misaligned with the signal transmission area 11. This can effectively block near-infrared light from penetrating the window glass 100 without affecting the normal passage of the signal from the optical sensor 220 through the window glass 100, so that the optical sensor 220 can perform effective detection and work normally.

[0103] For one possible implementation, please refer to Figure 2 The colored layer 20 is a single-layer structure. The colored layer 20 is connected between the outer glass plate 12 and the intermediate layer 13, and its projection on the glass body 10 along the thickness direction of the glass body 10 is offset from the signal transmission area 11, so that the signal of the optical sensor 220 can avoid the colored layer 20 on the window glass 100 when it passes through the window glass 100.

[0104] This embodiment also provides five examples and two comparative examples to explore the performance of the vehicle window glass 100 of this embodiment.

[0105] Example 1:

[0106] The vehicle window glass 100 provided in Example 1 includes a glass body 10 and a tinted layer 20. The glass body 10 includes an outer glass panel 12, an intermediate layer 13, and an inner glass panel 14 stacked sequentially. Both the outer glass panel 12 and the inner glass panel 14 are ultra-clear glass. The tinted layer 20 connects the outer glass panel 12 and the intermediate layer 13 and is used to adjust the color of the vehicle window glass 100 and block near-infrared rays. The reflectance color Lab value of the vehicle window glass 100 measured from the outside of the vehicle has an L value of 39.39, an a value of -3.88, and a b value of -6.32.

[0107] Example 2:

[0108] The parts that are the same as those in Example 1 will not be repeated here. The difference between Example 2 and Example 1 is that the L value of the reflectance color Lab value of the car window glass 100 measured from the outside of the car is set to 40.55, the a value is set to -5.16, and the b value is set to -5.71.

[0109] Example 3:

[0110] The parts that are the same as those in Example 1 in Example 3 will not be repeated. The difference between Example 3 and Example 1 is that the L value of the reflectance color Lab value of the car window glass 100 measured from the outside of the car is set to 41.69, the a value is set to -6.64, and the b value is set to -5.38.

[0111] Example 4:

[0112] The parts of Example 4 that are the same as those in Example 1 will not be repeated. The difference between Example 4 and Example 1 is that the L value of the reflectance color Lab value of the car window glass 100 measured from the outside of the car is set to 43.54, the a value is set to -8.74, and the b value is set to -3.90.

[0113] Example 5:

[0114] The parts of Example 5 that are the same as those in Example 1 will not be repeated here. The difference between Example 5 and Example 1 is that the L value of the Lab value of the reflectance color of the car window glass 100 measured from the outside of the car is set to 44, the a value is set to -9.79, and the b value is set to -3.39.

[0115] Comparative Example 1:

[0116] The vehicle window glass 100 provided in Comparative Example 1 only includes the glass body 10. The glass body 10 includes an outer glass panel 12, a middle layer 13, and an inner glass panel 14 stacked sequentially. Both the outer glass panel 12 and the inner glass panel 14 are green glass. The reflectance color Lab values ​​of the vehicle window glass 100, measured from the outside of the vehicle, have an L value of 34.80, an a value of -2.60, and a b value of -0.28.

[0117] Comparative Example 2:

[0118] The vehicle window glass 100 provided in Comparative Example 2 only includes the glass body 10. The glass body 10 includes an outer glass panel 12, a middle layer 13, and an inner glass panel 14 stacked sequentially. One of the outer glass panel 12 and the inner glass panel 14 is green glass, and the other is clear glass. The reflectance color Lab values ​​of the vehicle window glass 100 measured from the outside of the vehicle have an a value of -3.45 and a b value of -9.04.

[0119] The vehicle window glass 100 of Examples 1-5 and Comparative Examples 1-2 were integrated with optical sensor 220 respectively. The L value, a value and b value of the Lab value of the reflected color of the vehicle window glass 100, as well as the Y value and visible light transmittance TL, were measured from the outside of the vehicle.

[0120] Visible light transmittance TL: calculated according to ISO 9050.

[0121] The Lab value of the reflected color of the car window glass 100 refers to the Lab value of the reflected color of the car window glass 100 measured from the outside of the car.

[0122] The L, a, and b values ​​in the Lab value of reflected color: In the field of color measurement and analysis, Lab values ​​are commonly used to calculate color difference. The L value is the lightness value, used to represent the brightness of the glass, ranging from [0, 100], representing pure black to pure white. The a and b values ​​are both color values. The a value represents the range from red to green, ranging from [127, -128]. The b value represents the range from yellow to blue, ranging from [127, -128].

[0123] Y-value: Characterizes the reflectance and transmittance of visible light. The range of Y-value is [0, 100].

[0124] The measurement results of Comparative Examples 1-2 and Examples 1-5 are included in Table 1.

[0125] Table 1: Measurement results of vehicle window glass 100 in Comparative Examples 1-2 and Examples 1-5

[0126]

[0127] Based on test data from multiple embodiments, in the Lab value of the reflected color of the vehicle window glass 100 measured from the outside of the vehicle, the a value can be less than -2.6, for example, the a value can be -3.88, -5.16, -6.64, -8.74, -9.79, etc. The b value is in the range of -9.04 to -0.28, including the endpoints -9.04 and -0.28, for example, the b value can be -6.32, -5.71, -5.38, -3.90, -3.39, etc. Furthermore, in the Lab value of the reflected color of the vehicle window glass 100 measured from the outside of the vehicle, the a value can be less than -3.45, and the b value is in the range of -9.04 to -0.28, including the endpoints -9.04 and -0.28.

[0128] In other words, the 'a' value in the Lab value of the window glass 100 measured from the outside of the vehicle is lower than the 'a' value of a conventional glass combination, while the 'b' value falls between the 'b' value of a green glass + green glass combination and the 'b' value of a green glass + clear glass combination. In color evaluation, 'a' and 'b' values ​​within this range make the color of the window glass 100 made using a high-transparency glass combination closer to the color of the window glass 100 made using a conventional glass combination. That is, 'a' and 'b' values ​​within this range are more effective in reducing the color difference between the high-transparency glass combination and the conventional glass combination, achieving color consistency between them.

[0129] Furthermore, test data from multiple embodiments shows that the L value can be in the range of 39.39 to 44, including the endpoints 39.39 and 44. For example, the L value can be 39.39, 40.55, 41.69, 43.54, 44, etc. An L value within this range allows the vehicle window glass 100 to maintain suitable transparency without being too dark or too clear.

[0130] Furthermore, the test results of the five sets of embodiments show that the visible light transmittance of the window glass 100 is greater than 80%, and the Y value is also greater than that of the conventional glass combination. This indicates that the window glass 100 has high transparency.

[0131] In summary, it can be understood that in this embodiment, both the outer glass panel 12 and the inner glass panel 14 are high-transparency glass. Compared to ordinary glass, high-transparency glass has a higher light transmittance, presenting a clearer and more transparent visual effect. Therefore, by providing a colored layer 20 in the window glass 100, the color of the colored layer 20 can directly affect the display color of the window glass 100. Furthermore, by adjusting the colored layer 20, thereby adjusting the Lab value of the reflected color of the window glass 100, the color of the window glass 100 can be precisely adjusted, thereby reducing the color difference between the high-transparency glass combination and the traditional glass combination in the same vehicle 200 (or vehicles 200 of the same series but different configurations), maintaining color consistency between them, and improving the overall aesthetics of the vehicle 200.

[0132] Furthermore, it is understood that in this embodiment, in order to improve the transmittance of the window glass 100 to the signal of the optical sensor 220, both the outer glass panel 12 and the inner glass panel 14 are made of high-transmittance glass with high near-infrared transmittance. However, compared with conventional window glass 100, this high-transmittance glass with high near-infrared transmittance is often accompanied by an increase in ultraviolet transmittance, which increases the probability and risk of ultraviolet rays damaging the optical sensor 220 through the window glass 100. Therefore, this embodiment needs to enhance the ultraviolet resistance of the window glass 100. The following will explain how this embodiment enhances the ultraviolet resistance of the window glass 100 through three specific application scenarios.

[0133] In the first possible application scenario, please continue reading. Figure 2 The intermediate layer 13 can be configured as an enhanced ultraviolet (UV) absorption layer. Specifically, in this application scenario, the intermediate layer 13 can absorb UV light with wavelengths less than or equal to 410 nm, and its transmittance for UV light with wavelengths less than or equal to 410 nm is less than or equal to 2%. Further, the intermediate layer 13 can also absorb only UV light with wavelengths less than or equal to 400 nm, and its transmittance for UV light with wavelengths less than or equal to 400 nm is less than or equal to 2%.

[0134] In this application scenario, the material of the intermediate layer 13 can be polyvinyl butyral (PVB) or ethylene-vinyl acetate copolymer (EVA), etc.

[0135] Understandably, in the laminated structure of traditional car window glass, although the middle layer has a certain UV protection capability, it can generally only absorb ultraviolet rays with wavelengths less than 380nm, and its absorption capability for long-wave ultraviolet rays with stronger penetrating power in the wavelength range of 380nm to 400nm is poor.

[0136] Therefore, in this application scenario, by enabling the intermediate layer 13 to block ultraviolet rays with wavelengths below 410nm and having a transmittance of less than or equal to 2% for ultraviolet rays with wavelengths less than or equal to 410nm, the car window glass 100 can block long-wave ultraviolet rays with stronger penetrating power in the wavelength range of 380nm to 400nm. This expands the wavelength range of ultraviolet rays that the car window glass 100 can absorb, enhances the ultraviolet absorption capacity of the intermediate layer 13, and further enhances the ultraviolet absorption capacity of the car window glass 100. As a result, sunlight that passes through the car window glass 100 and shines on the optical sensor 220 can be filtered out by the intermediate layer 13 inside the car window glass 100, greatly reducing the transmittance of ultraviolet rays on the car window glass 100 and the probability of ultraviolet rays shining on the optical sensor 220.

[0137] In this application scenario, the colored layer 20 can be connected between the outer glass plate 12 and the intermediate layer 13 (e.g., Figure 2 (As shown). And / or, the tinted layer 20 is connected between the intermediate layer 13 and the inner glass panel 14. The tinted layer 20 is a single-layer structure and is used to adjust the color of the window glass 100 and block near-infrared rays.

[0138] For the second possible application scenario, please refer to Figure 3 , Figure 3 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the structure of the window glass 100 of the first embodiment, obtained by cutting along the cutting line AA.

[0139] In this application scenario, the content identical to that in the first application scenario will not be repeated. The difference is that the intermediate layer 13 is not an enhanced ultraviolet (UV) absorption layer. The vehicle window glass 100 may include an enhanced UV absorption layer 30. The enhanced UV absorption layer 30 is connected between the outer glass panel 12 and the inner glass panel 14, and the projection of the enhanced UV absorption layer 30 onto the glass body 10 along the thickness direction of the glass body 10 at least covers the signal transmission area 11, so that sunlight passing through the vehicle window glass 100 and illuminating the optical sensor 220 can be filtered out by the enhanced UV absorption layer 30 within the vehicle window glass 100. That is, an additional independent enhanced UV absorption layer is provided in this application scenario. However, it should be understood that in this application scenario, the intermediate layer 13 can still be a layer structure with a certain UV absorption capability. Optionally, the enhanced UV absorption layer 30 can be connected between the intermediate layer 13 and the inner glass panel 14. And / or, the enhanced UV absorption layer 30 can also be connected between the outer glass panel 12 and the intermediate layer 13. For example, as shown... Figure 3 As shown, the enhanced ultraviolet absorption layer 30 is connected between the intermediate layer 13 and the inner glass plate 14.

[0140] The enhanced ultraviolet absorption layer 30 can absorb ultraviolet rays with wavelengths less than or equal to 410 nm, and its transmittance for ultraviolet rays with wavelengths less than or equal to 410 nm is less than or equal to 2%. Furthermore, the enhanced ultraviolet absorption layer 30 can also absorb only ultraviolet rays with wavelengths less than or equal to 400 nm, and its transmittance for ultraviolet rays with wavelengths less than or equal to 400 nm is less than or equal to 2%.

[0141] In this application scenario, the material for enhancing the ultraviolet absorption layer 30 can be polyvinylbutyral (PVB) or ethylene-vinyl acetate copolymer (EVA), etc.

[0142] Understandably, this application scenario can also expand the wavelength range of ultraviolet rays that the window glass 100 can absorb, thereby enhancing the UV resistance of the window glass 100.

[0143] In the third possible application scenario, please refer to the relevant documentation. Figure 4 , Figure 5 and Figure 6 , Figure 4 It is along Figure 1 The diagram shows a third cross-sectional view of a portion of the structure of the vehicle window glass 100 in the first embodiment, obtained by cutting along section line AA. Figure 5 It is along Figure 1 The diagram shows a fourth cross-sectional view of a portion of the structure of the vehicle window glass 100 in the first embodiment, obtained by cutting along section line AA. Figure 6 It is along Figure 1 The diagram shows a fifth cross-sectional view of a portion of the structure of the window glass 100 of the first embodiment, obtained by cutting along the cutting line AA.

[0144] In this application scenario, the content that is the same as in the second application scenario will not be repeated. The difference from the second application scenario is that the enhanced ultraviolet absorption layer 30 is connected to the side of the inner glass plate 14 away from the intermediate layer 13. The projection of the enhanced ultraviolet absorption layer 30 on the glass body 10 along the thickness direction of the glass body 10 at least covers the signal transmission area 11, so that all sunlight passing through the window glass 100 and shining on the optical sensor 220 can be filtered out by the enhanced ultraviolet absorption layer 30 inside the window glass 100.

[0145] For example, such as Figure 4 As shown, the enhanced ultraviolet absorption layer 30 is attached to the surface of the inner glass plate 14 facing away from the intermediate layer 13. The projection of the enhanced ultraviolet absorption layer 30 onto the glass body 10 along the thickness direction of the glass body 10 covers the entire surface of the inner glass plate 14 facing away from the intermediate layer 13. Or, as... Figure 5As shown, the enhanced ultraviolet absorption layer 30 is attached to the surface of the inner glass plate 14 facing away from the intermediate layer 13. The projection of the enhanced ultraviolet absorption layer 30 onto the glass body 10 along the thickness direction of the glass body 10 exactly covers the signal transmission area 11. Or, as... Figure 6 As shown, the enhanced ultraviolet absorption layer 30 is connected to the side of the inner glass plate 14 away from the intermediate layer 13, but is not directly connected to the surface of the inner glass plate 14 away from the intermediate layer 13. Other layer structures may be provided between the enhanced ultraviolet absorption layer 30 and the inner glass plate 14.

[0146] Please continue reading. Figures 2-6 In this embodiment, the vehicle window glass 100 may further include an anti-reflection layer 40. The anti-reflection layer 40 is attached to the side of the inner glass panel 14 facing away from the intermediate layer 13. Exemplarily, the anti-reflection layer 40 may be installed on the side of the inner glass panel 14 facing away from the intermediate layer 13 by means of a film, patch, or coating. The projection of the anti-reflection layer 40 onto the glass body 10 along the thickness direction of the glass body 10 at least covers the signal transmission area 11. The anti-reflection layer 40 is used to reduce near-infrared reflection. Since the wavelength of the optical sensor 220 signal in this embodiment is similar to that of near-infrared light, the anti-reflection layer 40 is also used to reduce the reflection of the optical sensor 220 signal.

[0147] Understandably, when the signal from the optical sensor 220 is transmitted from inside the vehicle 200 to the outside, the signal is reflected when it passes the surface of the inner glass panel 14 away from the intermediate layer 13, resulting in a decrease in the transmittance of the optical sensor 220 signal on the window glass 100. This embodiment addresses this by providing an anti-reflection layer 40 on the surface of the inner glass panel 14 away from the intermediate layer 13, thereby reducing the reflection of the optical sensor 220 signal when it passes this surface and increasing the transmittance of the optical sensor 220 signal on the window glass 100, enabling the optical sensor 220 to detect signals effectively.

[0148] Furthermore, the anti-reflective layer 40 can also be used to adjust the color of the window glass 100.

[0149] Understandably, please refer to Figure 2When the colored layer 20 is a single-layer structure, and its projection along the thickness direction of the glass body 10 is misaligned with the signal transmission area 11, the colored layer 20 is not present in the signal transmission area 11 of the window glass 100, making color adjustment difficult. Therefore, by using an anti-reflective layer 40 to cover the signal transmission area 11 and adjusting the color of the window glass 100, the color gap in the signal transmission area 11 of the window glass 100 can be filled, allowing the color of the entire area of ​​the window glass 100 to be adjustable. This helps reduce the color difference between high-transparency glass combinations and traditional glass combinations, improving the overall aesthetics of the vehicle 200.

[0150] For example, such as Figure 2 As shown, when the intermediate layer 13 is an enhanced ultraviolet-absorbing layer, the antireflective layer 40 is attached to the surface of the inner glass plate 14 away from the intermediate layer 13.

[0151] Or, such as Figure 3 As shown, when the intermediate layer 13 is a non-enhanced ultraviolet-absorbing layer, and an independent enhanced ultraviolet-absorbing layer 30 is provided on the window glass 100, the enhanced ultraviolet-absorbing layer 30 is connected between the intermediate layer 13 and the inner glass panel 14, and the anti-reflection layer 40 is connected to the surface of the inner glass panel 14 away from the intermediate layer 13.

[0152] Or, such as Figure 4 and Figure 5 As shown, when the intermediate layer 13 is a non-enhanced ultraviolet-absorbing layer, and an independent enhanced ultraviolet-absorbing layer 30 is provided on the window glass 100, the enhanced ultraviolet-absorbing layer 30 is connected to the surface of the inner glass panel 14 facing away from the intermediate layer 13. The anti-reflective layer 40 is connected to the surface of the enhanced ultraviolet-absorbing layer 30 facing away from the inner glass panel 14.

[0153] Or, such as Figure 6 As shown, when the intermediate layer 13 is a non-enhanced ultraviolet-absorbing layer, and an independent enhanced ultraviolet-absorbing layer 30 is provided on the window glass 100, the anti-reflection layer 40 is connected to the surface of the inner glass panel 14 away from the intermediate layer 13, and the enhanced ultraviolet-absorbing layer 30 is connected to the surface of the anti-reflection layer 40 away from the surface of the inner glass panel 14.

[0154] In this embodiment, at the vehicle mounting angle (i.e., when the window glass 100 is mounted on the body sheet metal 210), the transmittance of the optical sensor 220 signal with a wavelength in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) on the window glass 100 is greater than or equal to 80%. Furthermore, since all optical sensor 220 signals pass through the signal transmission area 11 of the window glass 100, at the vehicle mounting angle, the transmittance of the optical sensor 220 signal with a wavelength in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) within the signal transmission area 11 of the window glass 100 is greater than or equal to 80%. For example, at the vehicle mounting angle, the transmittance of the 905nm wavelength optical sensor 220 signal within the signal transmission area 11 of the window glass 100 is greater than or equal to 80%; or, at the vehicle mounting angle, the transmittance of the 1550nm wavelength optical sensor 220 signal within the signal transmission area 11 of the window glass 100 is greater than or equal to 80%. Furthermore, since the wavelength of near-infrared light is similar to that of the optical sensor 220 signal, the transmittance of near-infrared light with wavelengths in the range of 800nm ​​to 1600nm (inclusive of the endpoints 800nm ​​and 1600nm) within the signal transmission area 11 of the window glass 100 is greater than or equal to 80%.

[0155] In this embodiment, preferably, at the vehicle mounting angle, the transmittance of the optical sensor 220 signal with a wavelength in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) within the signal transmission area 11 of the vehicle window glass 100 is greater than or equal to 85%. More preferably, at the vehicle mounting angle, the transmittance of the optical sensor 220 signal with a wavelength in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) within the signal transmission area 11 of the vehicle window glass 100 is greater than or equal to 90%. Even more preferably, at the vehicle mounting angle, the transmittance of the optical sensor 220 signal with a wavelength in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) within the signal transmission area 11 of the vehicle window glass 100 is greater than or equal to 95%.

[0156] It should be noted that the mounting angle is the angle between the window glass 100 and the horizontal plane. The horizontal plane is a plane parallel to the length and width directions of the vehicle 200. When the window glass 100 serves as the windshield of the vehicle 200, the mounting angle is typically 20°-40°, such as 20°, 25°, 30°, 35°, 40°, etc. The optical sensor 220 is typically horizontally mounted (i.e., the optical sensor 220 is typically set parallel to the horizontal plane mentioned above). The incident angle of the optical sensor 220 signal on the window glass 100 is approximately 50°-70°, such as 50°, 55°, 60°, 65°, 70°, etc. That is, in this embodiment, the transmittance of the signal transmission area 11 of the window glass 100 for near-infrared light with wavelengths in the range of 800nm-1600nm (inclusive of the endpoints 800nm ​​and 1600nm) incident at an incident angle of 50°-70° is greater than or equal to 80%.

[0157] In some other embodiments, when the transmittance of the optical sensor 220 signal with a wavelength in the range of 800nm-1600nm (including the endpoint values ​​of 800nm ​​and 1600nm) on the window glass 100 is greater than or equal to 80% at the vehicle mounting angle (i.e., when the window glass 100 is mounted on the body sheet metal 210), the anti-reflection layer 40 may not be provided.

[0158] Understandably, the reflectivity of the optical sensor 220 signal passing through the window glass 100 varies at different angles. The greater the tilt angle of the window glass 100, the greater the reflectivity of the optical sensor 220 signal. When the optical sensor 220 signal passes perpendicularly through the window glass 100 (i.e., the optical sensor 220 signal passes through the window glass 100 along its thickness), the reflectivity is minimum and the transmittance is maximum. In contrast, after the window glass 100 is mounted on the body sheet metal 210, the tilt angle of the window glass 100 increases, leading to an increase in the reflectivity of the optical sensor 220 signal and a decrease in its transmittance. Therefore, if the transmittance of the optical sensor 220 signal on the window glass 100 can reach or exceed 80% at the installation angle, it means that even without the help of the anti-reflection layer 40, an optical sensor 220 signal transmittance of not less than 80% can enable the optical sensor 220 to perform effective detection.

[0159] Second embodiment:

[0160] Please refer to the following: Figure 7 and Figure 8 , Figure 7 It is along Figure 1The diagram shows a first cross-sectional view of a portion of the structure of the vehicle window glass 100 of the second embodiment, obtained by cutting along section line AA. Figure 8 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the structure of the window glass 100 of the second embodiment, obtained by cutting along the cutting line AA.

[0161] In this embodiment, the contents that are the same as in the first embodiment will not be repeated. The difference from the first embodiment is that this embodiment does not have an additional independent enhanced ultraviolet absorption layer 30, nor does it set the intermediate layer 13 as an enhanced ultraviolet absorption layer. Furthermore, in this embodiment, the tinted layer 20 is connected between the outer glass panel 12 and the inner glass panel 14. And / or, the tinted layer 20 is connected to the side of the inner glass panel 14 opposite to the intermediate layer 13. The tinted layer 20 is used to adjust the color of the window glass 100 and block ultraviolet rays. The tinted layer 20 is a single-layer structure. Additionally, the description of the window glass 100 below can be applied to the first embodiment above, unless otherwise specified.

[0162] It is understood that, in this embodiment, by adjusting the colored layer 20, the Lab value of the reflected color of the window glass 100 can be adjusted, thereby regulating the color of the window glass 100. This reduces the color difference between the high-transparency glass combination and the conventional glass combination in the same vehicle 200 (or vehicles 200 of the same series but different configurations), improving the aesthetics of the vehicle 200. Furthermore, the colored layer 20 in this embodiment can block ultraviolet rays, ensuring that sunlight passing through the window glass 100 and reaching the optical sensor 220 is filtered out by the colored layer 20, significantly reducing the probability of ultraviolet rays damaging the optical sensor 220.

[0163] In this embodiment, the colored layer 20 can absorb ultraviolet light with a wavelength less than or equal to 410 nm, and its transmittance to ultraviolet light with a wavelength less than or equal to 410 nm is less than or equal to 2%. Further, the colored layer 20 can also absorb only ultraviolet light with a wavelength less than or equal to 400 nm, and its transmittance to ultraviolet light with a wavelength less than or equal to 400 nm is less than or equal to 2%. Exemplarily, the material of the colored layer 20 can be polyvinyl butyral (PVB) or ethylene-vinyl acetate copolymer (EVA), etc.

[0164] In one possible implementation, please refer to Figure 7The tinted layer 20 is a single-layer structure. The tinted layer 20 is connected between the intermediate layer 13 and the inner glass panel 14, and is used to adjust the color of the window glass 100 and block ultraviolet rays. It is understood that the tinted layer 20 can also be connected between the outer glass panel 12 and the intermediate layer 13.

[0165] In another possible implementation, please refer to Figure 8 The colored layer 20 is a single-layer structure. The colored layer 20 is connected to the surface of the inner glass panel 14 opposite to the intermediate layer 13, and is used to adjust the color of the window glass 100 and block ultraviolet rays.

[0166] In this embodiment, since the outer glass panel 12 and / or the inner glass panel 14 have high near-infrared transmittance, it is necessary to enhance the near-infrared protection capability of the vehicle window glass 100 to avoid heat accumulation caused by near-infrared radiation. Specifically, the vehicle window glass 100 may include a near-infrared reflective layer 50. The near-infrared reflective layer 50 is connected between the outer glass panel 12 and the intermediate layer 13. And / or, the near-infrared reflective layer 50 is connected between the intermediate layer 13 and the inner glass panel 14. Furthermore, the projection of the near-infrared reflective layer 50 onto the glass body 10 along the thickness direction of the glass body 10 is offset from the signal transmission area 11. Exemplarily, the near-infrared reflective layer 50 may be a near-infrared reflective (IRR) coating layer. The near-infrared transmittance of the near-infrared reflective layer 50 is less than or equal to 20%. The total solar transmittance (TTS) of the area covered by the near-infrared reflective layer 50 in the vehicle window glass 100 is less than or equal to 55%. Figure 7 and Figure 8 As shown, in this embodiment, the near-infrared reflective layer 50 is connected between the outer glass plate 12 and the intermediate layer 13.

[0167] It should be noted that, unless otherwise specified, the following embodiments are consistent with the following:

[0168] If the colored layer 20 can block near-infrared rays but not ultraviolet rays, then in this embodiment, it is not necessary to provide other layers for blocking near-infrared rays, but other layers for blocking ultraviolet rays are required (such as a separate ultraviolet-enhancing absorption layer 30 or setting the intermediate layer 13 as an enhanced ultraviolet-absorbing layer). The specific structure and characteristics of the colored layer 20 for blocking near-infrared rays can be referred to the characteristics of the colored layer 20 for blocking near-infrared rays in the first embodiment, and will not be repeated below.

[0169] If the colored layer 20 can block ultraviolet rays but not near-infrared rays, then in this embodiment, it is not necessary to provide another layer for blocking ultraviolet rays, but it is necessary to provide a layer for blocking near-infrared rays (such as the near-infrared reflective layer 50). The specific characteristics of the colored layer 20 for blocking ultraviolet rays can refer to the characteristics of the intermediate layer 13 for blocking ultraviolet rays or the ultraviolet absorption enhancement layer 30 in the first embodiment, and will not be repeated below.

[0170] If the colored layer 20 can block both near-infrared and ultraviolet rays, then in this embodiment, it is not necessary to provide other layers for blocking near-infrared rays or ultraviolet rays. The specific characteristics of the colored layer 20 for blocking near-infrared rays can refer to those of the colored layer 20 for blocking near-infrared rays in the first embodiment, and the specific characteristics of the colored layer 20 for blocking ultraviolet rays can refer to those of the intermediate layer 13 or the ultraviolet absorption enhancement layer 30 for blocking ultraviolet rays in the first embodiment, which will not be repeated below.

[0171] Third embodiment:

[0172] Please see Figure 9 , Figure 9 It is along Figure 1 The diagram shows a cross-sectional view of a portion of the structure of the window glass 100 of the third embodiment, obtained by cutting along the cutting line AA.

[0173] In this embodiment, the contents that are the same as in the second embodiment will not be repeated. The difference is that, unlike the second embodiment, all of the colored layers 20 can form part of the glass body 10. Specifically, all of the colored layers 20 form an intermediate layer 13. The colored layers 20 are single-layer structures. The colored layers 20 are adhesive to bond the outer glass panel 12 and the inner glass panel 14 together. The colored layers 20 are used to adjust the color of the window glass 100 and block ultraviolet rays.

[0174] Fourth embodiment:

[0175] Please see Figure 10 , Figure 10 It is along Figure 1 The diagram shows a cross-sectional view of a portion of the structure of the window glass 100 of the fourth embodiment, obtained by cutting along the cutting line AA shown.

[0176] In this embodiment, the colored layer 20 is used to block near-infrared rays. The same content as in the first embodiment will not be repeated. The difference from the first embodiment is that the colored layer 20 includes at least two layers. Specifically, the colored layer 20 may include a two-layer structure. The colored layer 20 includes a first sub-layer 21 and a second sub-layer 22. The first sub-layer 21 is only used to block near-infrared rays and is not used to adjust the color of the window glass 100. The second sub-layer 22 is only used to adjust the color of the window glass 100 and is not used to block near-infrared rays.

[0177] In this embodiment, the first sub-layer 21 is connected between the outer glass plate 12 and the intermediate layer 13. And / or, the first sub-layer 21 is connected between the intermediate layer 13 and the inner glass plate 14. Furthermore, the projection of the first sub-layer 21 onto the glass body 10 along the thickness direction of the glass body 10 is offset from the signal transmission area 11. Exemplarily, the first sub-layer 21 can be a near-infrared reflective (IRR) coating layer. The transmittance of the first sub-layer 21 for near-infrared light can be less than or equal to 20%. The total solar transmittance (TTS) of the area covered by the first sub-layer 21 in the vehicle window glass 100 is less than or equal to 55%.

[0178] In this embodiment, the second sub-layer 22 is connected between the outer glass plate 12 and the intermediate layer 13. And / or, the second sub-layer 22 is connected between the intermediate layer 13 and the inner glass plate 14. And / or, the second sub-layer 22 is connected to the side of the inner glass plate 14 opposite to the intermediate layer 13.

[0179] In one possible implementation, please refer to Figure 10 The colored layer 20 includes a first sub-layer 21 and a second sub-layer 22 stacked together. The first sub-layer 21 is connected to the surface of the outer glass panel 12 facing the intermediate layer 13. The projection of the first sub-layer 21 onto the glass body 10 along the thickness direction of the glass body 10 is offset from the signal transmission area 11. The second sub-layer 22 is connected between the first sub-layer 21 and the intermediate layer 13. In this embodiment, the projection of the second sub-layer 22 onto the glass body 10 along the thickness direction of the glass body 10 covers the entire surface of the outer glass panel 12 near the intermediate layer 13. For example, the second sub-layer 22 can be a color-changing coating. That is, in this embodiment, the color of the vehicle window glass 100 is adjusted by adjusting the color of the second sub-layer 22.

[0180] In summary, in this embodiment, the two-layer structure of the colored layer 20 is used to realize the functions of blocking near-infrared rays and adjusting the color of the window glass 100, respectively.

[0181] Fifth embodiment:

[0182] Please refer to the following: Figure 11 and Figure 12 , Figure 11It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the structure of the vehicle window glass 100 in the fifth embodiment, obtained by cutting along section line AA. Figure 12 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the structure of the window glass 100 of the fifth embodiment, obtained by cutting along the cutting line AA shown.

[0183] In this embodiment, the contents that are the same as in the fourth embodiment will not be repeated. The difference is that the colored layer 20 is used to adjust the color of the window glass 100 and block ultraviolet and near-infrared rays. Specifically, the first sub-layer 21 is used to adjust the color of the window glass 100 and block near-infrared rays, and the second sub-layer 22 is used to adjust the color of the window glass 100 and block ultraviolet rays. Furthermore, the description of the window glass 100 below can be applied to the first to fourth embodiments described above, unless otherwise specified.

[0184] In one possible implementation, please refer to Figure 11 The colored layer 20 includes a first sub-layer 21 and a second sub-layer 22. The first sub-layer 21 is connected between the outer glass panel 12 and the intermediate layer 13, and is used to adjust the color of the window glass 100 and block near-infrared rays. The second sub-layer 22 is connected between the intermediate layer 13 and the inner glass panel 14, and is used to adjust the color of the window glass 100 and block ultraviolet rays. That is, in this embodiment, the color of the window glass 100 is adjusted by jointly adjusting the colors of the first sub-layer 21 and the second sub-layer 22.

[0185] In another possible implementation, please refer to Figure 12 The colored layer 20 may include a first sub-layer 21 and a second sub-layer 22. The first sub-layer 21 is connected between the outer glass panel 12 and the intermediate layer 13, and is used to adjust the color of the window glass 100 and block near-infrared rays. The second sub-layer 22 is connected to the surface of the inner glass panel 14 opposite to the intermediate layer 13, and is used to adjust the color of the window glass 100 and block ultraviolet rays. That is, in this embodiment, the color of the window glass 100 is adjusted by jointly adjusting the colors of the first sub-layer 21 and the second sub-layer 22.

[0186] Sixth embodiment:

[0187] Please see Figure 13 , Figure 13 It is along Figure 1 The diagram shows a cross-sectional view of a portion of the structure of the window glass 100 of the sixth embodiment, obtained by cutting along the cutting line AA.

[0188] In this embodiment, the contents that are the same as in the fifth embodiment will not be repeated. The difference from the fifth embodiment is that a portion of the colored layer 20 forms the intermediate layer 13. The colored layer 20 is used to adjust the color of the window glass 100 and to block ultraviolet and near-infrared rays. In addition, the description of the window glass 100 below can be applied to the first to fifth embodiments above, unless otherwise specified.

[0189] For one possible implementation, please refer to Figure 13 The colored layer 20 may include a first sub-layer 21 and a second sub-layer 22 stacked together. The first sub-layer 21 forms an intermediate layer 13 and is used to adjust the color of the window glass 100 and block ultraviolet rays. The second sub-layer 22 connects the first sub-layer 21 and the outer glass panel 12 and is used to adjust the color of the window glass 100 and block near-infrared rays. That is, in this embodiment, the color of the window glass 100 is adjusted by jointly adjusting the colors of the first sub-layer 21 and the second sub-layer 22.

[0190] Seventh embodiment:

[0191] Please refer to the following: Figure 14 and Figure 15 , Figure 14 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the structure of the vehicle window glass 100 in the seventh embodiment, obtained by cutting along section line AA. Figure 15 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the structure of the window glass 100 of the seventh embodiment, obtained by cutting along the cutting line AA shown.

[0192] In this embodiment, the contents identical to those in the sixth embodiment will not be repeated. The difference is that, unlike the sixth embodiment, the colored layer 20 is used to adjust the color of the window glass 100 and block ultraviolet rays. Specifically, the first sub-layer 21 forms the intermediate layer 13 and is used only for blocking ultraviolet rays. The second sub-layer 22 is used only for adjusting the color of the window glass 100. In this embodiment, the second sub-layer 22 is connected between the outer glass panel 12 and the intermediate layer 13. And / or, the second sub-layer 22 is connected between the intermediate layer 13 and the inner glass panel 14. And / or, the second sub-layer 22 is connected to the side of the inner glass panel 14 opposite to the intermediate layer 13. Furthermore, the description of the window glass 100 below can be applied to the first to sixth embodiments described above, unless otherwise specified.

[0193] For one possible implementation, please refer to Figure 14The colored layer 20 may include a first sub-layer 21 and a second sub-layer 22 stacked together. The first sub-layer 21 forms an intermediate layer 13 and is used solely to block ultraviolet rays. The second sub-layer 22 connects the first sub-layer 21 and the inner glass panel 14 and is used solely to adjust the color of the vehicle window glass 100. That is, in this embodiment, the color of the vehicle window glass 100 is adjusted by adjusting the color of the second sub-layer 22.

[0194] For another possible implementation, please refer to Figure 15 The colored layer 20 may include a first sub-layer 21 and a second sub-layer 22 stacked together. The first sub-layer 21 forms an intermediate layer 13 and is used solely to block ultraviolet rays. The second sub-layer 22 is attached to the surface of the inner glass panel 14 opposite to the intermediate layer 13 and is used solely to adjust the color of the window glass 100. In this embodiment, the color of the window glass 100 is adjusted by adjusting the color of the second sub-layer 22.

[0195] Eighth embodiment:

[0196] Please refer to the following: Figure 16 and Figure 17 , Figure 16 It is along Figure 1 The diagram shows a first cross-sectional view of a portion of the structure of the vehicle window glass 100 in the eighth embodiment, obtained by cutting along section line AA. Figure 17 It is along Figure 1 The diagram shows a second cross-sectional view of a portion of the structure of the vehicle window glass 100 of the eighth embodiment, obtained by cutting along the cutting line AA shown.

[0197] In this embodiment, the colored layer 20 is used to adjust the color of the window glass 100 and block ultraviolet rays. The colored layer 20 may include at least two layers. Specifically, the colored layer 20 includes a first sub-layer 21 and a second sub-layer 22. The first sub-layer 21 is only used to block ultraviolet rays and not to adjust the color of the window glass 100. The second sub-layer 22 is only used to adjust the color of the window glass 100 and not to block ultraviolet rays. The same content as in the seventh embodiment will not be repeated. The difference from the seventh embodiment is that the first sub-layer 21 does not form an intermediate layer 13. The first sub-layer 21 is connected between the outer glass panel 12 and the intermediate layer 13. And / or, the first sub-layer 21 is connected between the intermediate layer 13 and the inner glass panel 14. And / or, the first sub-layer 21 is connected to the side of the inner glass panel 14 opposite to the intermediate layer 13.

[0198] In this embodiment, the second sub-layer 22 is connected between the outer glass plate 12 and the intermediate layer 13. And / or, the second sub-layer 22 is connected between the intermediate layer 13 and the inner glass plate 14. And / or, the second sub-layer 22 is connected to the side of the inner glass plate 14 opposite to the intermediate layer 13.

[0199] For one possible implementation, please refer to Figure 16 The colored layer 20 includes a first sub-layer 21 and a second sub-layer 22 stacked together. The first sub-layer 21 is connected to the surface of the intermediate layer 13 facing the inner glass panel 14 and is used only to block ultraviolet rays, not to adjust the color of the window glass 100. The second sub-layer 22 is connected between the first sub-layer 21 and the inner glass panel 14 and is used only to adjust the color of the window glass 100, not to block ultraviolet rays. For example, the second sub-layer 22 may be a color-changing coating. That is, in this embodiment, the color of the window glass 100 is adjusted by changing the color of the second sub-layer 22.

[0200] For another possible implementation, please refer to Figure 17 The colored layer 20 includes a first sub-layer 21 and a second sub-layer 22 stacked together. The first sub-layer 21 is connected to the surface of the inner glass panel 14 facing away from the intermediate layer 13 and is used only to block ultraviolet rays, not to adjust the color of the window glass 100. The second sub-layer 22 is connected to the surface of the first sub-layer 21 facing away from the inner glass panel 14 and is used only to adjust the color of the window glass 100, not to block ultraviolet rays. That is, in this embodiment, the color of the window glass 100 is adjusted by adjusting the color of the second sub-layer 22.

[0201] In summary, in this embodiment, the two-layer structure of the colored layer 20 is used to realize the functions of blocking ultraviolet rays and adjusting the color of the window glass 100, respectively.

[0202] 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 type of vehicle window glass, characterized in that, The vehicle window glass includes a glass body and a colored layer. The glass body has a signal transmission area, and the signal transmission area has a transmittance of greater than or equal to 80% for near-infrared light with wavelengths in the range of 800nm-1600nm that is incident at an incident angle of 50°-70°. The glass body includes an outer glass plate, a middle layer and an inner glass plate stacked sequentially, wherein the middle layer connects the outer glass plate and the inner glass plate; Both the outer glass plate and the inner glass plate are high-transmittance glass, and the transmittance of the outer glass plate and / or the inner glass plate for near-infrared light with a wavelength in the range of 800nm-1600nm that is incident perpendicularly is greater than or equal to 90%. The colored layer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer; The colored layer is used to block near-infrared rays and / or block ultraviolet rays; Of the Lab values ​​of the reflected color of the window glass measured from the outside of the vehicle, a value is less than -2.6 and b value is between -9.04 and -0.

28.

2. The vehicle window glass according to claim 1, characterized in that, The colored layer is connected between the outer glass plate and the intermediate layer, and / or the colored layer is connected between the intermediate layer and the inner glass plate; The colored layer is used to block near-infrared rays, and the projection of the colored layer on the glass body along the thickness direction of the glass body is offset from the signal transmission area.

3. The vehicle window glass according to claim 2, characterized in that, The window glass also includes an enhanced ultraviolet absorption layer; The enhanced ultraviolet absorption layer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer.

4. The vehicle window glass according to claim 1, characterized in that, The colored layer is connected between the intermediate layer and the inner glass plate, and / or between the outer glass plate and the intermediate layer, and / or connected to the side of the inner glass plate opposite to the intermediate layer; The colored layer is used to block ultraviolet rays.

5. The vehicle window glass according to claim 1, characterized in that, The colored layer forms the intermediate layer and is used to block ultraviolet rays.

6. The vehicle window glass according to any one of claims 2-5, characterized in that, The colored layer has a single-layer structure.

7. The vehicle window glass according to claim 1, characterized in that, The colored layer includes a first sub-layer and a second sub-layer, wherein the first sub-layer is connected between the outer glass plate and the intermediate layer, and / or connected between the intermediate layer and the inner glass plate; The second sub-layer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer; The first sub-layer is used to block near-infrared rays, and the projection of the first sub-layer onto the glass body along the thickness direction of the glass body is offset from the signal transmission area.

8. The vehicle window glass according to claim 7, characterized in that, The second sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer; The second sub-layer is used to adjust the color of the window glass.

9. The vehicle window glass according to claim 7, characterized in that, The second sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer; The second sublayer is used to block ultraviolet rays.

10. The vehicle window glass according to claim 1, characterized in that, The colored layer includes a first sub-layer and a second sub-layer; The first sub-layer forms the intermediate layer and is used to block ultraviolet rays; The second sublayer is located between the outer glass plate and the inner glass plate, and / or on the side of the inner glass plate opposite to the intermediate layer.

11. The vehicle window glass according to claim 10, characterized in that, The second sublayer is connected between the first sublayer and the outer glass plate, and / or between the first sublayer and the inner glass plate; The second sub-layer is used to block near-infrared rays, and the projection of the second sub-layer onto the glass body along the thickness direction of the glass body is offset from the signal transmission area.

12. The vehicle window glass according to claim 10, characterized in that, The second sub-layer is connected between the first sub-layer and the outer glass plate, and / or between the first sub-layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer; The second sub-layer is used to adjust the color of the window glass.

13. The vehicle window glass according to claim 1, characterized in that, The colored layer includes a first sub-layer and a second sub-layer; The first sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer; The second sub-layer is connected between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate, and / or connected to the side of the inner glass plate opposite to the intermediate layer; One of the first sub-layer and the second sub-layer is used to block ultraviolet rays, and the other is used to adjust the color of the window glass.

14. The vehicle window glass according to claim 4, 5, 12, or 13, characterized in that, The vehicle window glass also includes a near-infrared reflective layer; The near-infrared reflective layer is located between the outer glass plate and the intermediate layer, and / or between the intermediate layer and the inner glass plate; The projection of the near-infrared reflective layer onto the glass body along the thickness direction of the glass body is offset from the signal transmission area.

15. The vehicle window glass according to any one of claims 2, 3, 7-9, and 11, characterized in that, The near-infrared transmittance of the colored layer is less than or equal to 20%; and / or, The total solar transmittance of the area covered by the colored layer in the vehicle window glass is less than or equal to 55%.

16. The vehicle window glass according to claim 14, characterized in that, The near-infrared transmittance of the near-infrared reflective layer is less than or equal to 20%; and / or, The total solar transmittance of the area covered by the near-infrared reflective layer in the vehicle window glass is less than or equal to 55%.

17. The vehicle window glass according to any one of claims 4-5 and 9-13, characterized in that, The colored layer has a transmittance of less than or equal to 2% for ultraviolet light with a wavelength less than or equal to 410 nm.

18. The vehicle window glass according to claim 3, characterized in that, The enhanced ultraviolet absorption layer has a transmittance of less than or equal to 2% for ultraviolet rays with a wavelength less than or equal to 410 nm.

19. The vehicle window glass according to claim 1, characterized in that, The vehicle window glass also includes an anti-reflective layer, which is connected to the side of the inner glass panel away from the intermediate layer. The projection of the anti-reflective layer on the glass body along the thickness direction of the glass body at least covers the signal transmission area. The anti-reflective layer is used to reduce near-infrared reflection.

20. The vehicle window glass according to claim 1, characterized in that, The outer glass panel and / or the inner glass panel are ultra-clear glass.

21. A vehicle, characterized in that, The vehicle includes a body panel and a window glass as described in any one of claims 1-20, wherein the window glass is mounted on the body panel.

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