Column glass and vehicle

Abstract

The invention provides stand column glass and a vehicle, and relates to the technical field of automobile glass products, and the stand column glass comprises a glass substrate which is provided with a signal transmission area for optical signal transmission; the functional patch is arranged in a first area on the glass substrate, and the first area at least completely covers the signal transmission area; the functional patch is sequentially provided with an infrared high-transmittance ink layer, a substrate and an infrared antireflection film in a stacked mode, the infrared high-transmittance ink layer is arranged on the surface, facing the glass substrate, of the substrate, and the infrared antireflection film is arranged on the surface, deviating from the glass substrate, of the substrate. According to the application, the infrared high-transmittance ink layer is printed on the functional patch, so that the functional patch obtains an effect of stopping infrared transmission by visible light, the use amount of the infrared high-transmittance ink can be greatly reduced, and the cost is reduced; moreover, the infrared antireflection film does not generate high reflection of visible light, and does not affect the normal work of an adjacent RGB camera.

Description

Technical Field

[0001] The present application relates to the technical field of automobile glass products, and in particular to a pillar glass and a vehicle. Background Art

[0002] With the development of the automobile manufacturing industry, the intelligence level of automobiles is also constantly improving. In existing automobiles, sensors such as cameras and radars are usually installed on the inner side of the B-pillar glass of the automobile so that the automobile can realize assisted driving functions, face recognition functions, and surround view functions.

[0003] At present, there are two structures of B-pillar glass that realize this function: one is a single-layer glass structure pillar glass, the surface facing the outside of the car is the outer surface, the surface facing the inside of the car is the inner surface, and then a high-infrared transmittance ink layer is printed on the entire inner surface of the pillar glass. Another existing pillar glass is to use an adhesive layer to attach a functional patch (the functional layer is a visible light cutoff infrared transmittance film) to a glass substrate.

[0004] However, in actual use, the above two technical solutions still have the following defects:

[0005] The infrared high-transmittance ink layer used in the first structure mentioned above is much more expensive than ordinary shielding ink, resulting in low customer acceptance. In addition, the infrared high-transmittance ink layer has poor UV aging resistance and a short service life under a single-layer glass structure.

[0006] The second structure mentioned above is that when there are adjacent IR cameras and RGB cameras in the pillar glass, when looking from the outside of the car to the inside of the car, the signal transmission area and the ink shielding area are the same color, and the infrared band transmittance can be greater than 90%. However, since the functional patch is coated with a visible light cutoff infrared transmission film on the side facing the inside of the car, its reflectivity in the visible light band is greater than 70%, which will significantly deteriorate the function of the RGB camera. Summary of the invention

[0007] In view of this, the present application provides a pillar glass and a vehicle to solve the above-mentioned technical problems in the prior art.

[0008] In order to achieve the above objectives, this application adopts the following scheme:

[0009] According to a first aspect of the present application, a column glass is provided, the column glass comprising:

[0010] a glass substrate having a signal transmission area for transmitting an optical signal of a sensor; and

[0011] A functional patch, wherein the functional patch is disposed in a first area on the glass substrate, and the first area at least completely covers the signal transmission area;

[0012] The functional patch includes an infrared high-transmittance ink layer, a substrate and an infrared anti-reflection film which are stacked in sequence. The infrared high-transmittance ink layer is arranged on the surface of the substrate facing the glass substrate, and the infrared anti-reflection film is arranged on the surface of the substrate facing away from the glass substrate.

[0013] As an embodiment of the present invention, the pillar glass further includes a shielding layer, and the shielding layer is disposed in a second area of ​​the glass substrate, the second area does not overlap with the signal transmission area, and the second area partially overlaps with the first area.

[0014] As an embodiment of the present invention, the visible light transmittance of the glass substrate is greater than or equal to 70%, and the visible light transmittance of the shielding layer is less than or equal to 10%.

[0015] As an embodiment of the present invention, the optical transmittance of the infrared high-transmittance ink layer in the wavelength range of 380nm-780nm is less than or equal to 20%, and the optical transmittance in the wavelength range of 920nm-980nm is greater than or equal to 85%.

[0016] As an embodiment of the present invention, the reflectivity of the infrared anti-reflection film in the wavelength range of 380nm-780nm is less than or equal to 15%.

[0017] As an embodiment of the present invention, the pillar glass further includes an adhesive layer disposed in the first region on the glass substrate, and the adhesive layer is connected between the glass substrate and the functional patch.

[0018] As an embodiment of the present invention, the bonding layer is optical glue, and the thickness of the optical glue is between 150 μm and 300 μm.

[0019] As an embodiment of the present invention, the adhesive layer is selected from at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, ionomer, acrylic acid, polyurethane, ionomer resin, silicone resin, and polyvinyl acetate; and / or

[0020] The thickness of the bonding layer is between 300 μm and 800 μm.

[0021] As an embodiment of the present invention, the glass substrate is ultra-white glass, and the absorption coefficient of the ultra-white glass in the wavelength range of 920nm-980nm is within the range of 5m -1 -50m -1 between.

[0022] As an embodiment of the present invention, the thickness of the substrate is less than or equal to 1.1 mm.

[0023] As an embodiment of the present invention, the transmittance of the substrate in the wavelength range of 920nm-980nm is greater than or equal to 90%.

[0024] As an embodiment of the present invention, the number of the functional patch is at least one.

[0025] According to a second aspect of the present application, a vehicle is provided, comprising a vehicle body, a sensor and the pillar glass as described above, wherein the pillar glass and the sensor are both mounted on the vehicle body, the sensor is located on a side of the pillar glass facing the vehicle body, and is spaced apart from and arranged opposite to the functional patch.

[0026] As an embodiment of the present invention, the sensor includes a signal receiving surface, which is arranged toward the pillar glass and is spaced apart and opposite to the functional patch. The angle between the normal of the signal receiving surface and the pillar glass is equal to or greater than 65°.

[0027] The sensor includes an IR camera, and the IR camera is spaced apart from and arranged opposite to the functional patch.

[0028] From the above description, it can be seen that the present application provides a pillar glass and a vehicle, in which the functional patch of the pillar glass is spaced apart and arranged opposite to the IR camera inside the vehicle, and the infrared high-transmittance ink layer is printed on the functional patch, so that the functional patch obtains the effect of visible light cutting off infrared transmission, which can greatly reduce the amount of infrared high-transmittance ink used and reduce costs without affecting the appearance and operation of the IR camera; in addition, the glass patch of the present application uses an infrared anti-reflection film on the side facing the interior of the vehicle, thereby eliminating the problem of high visible light reflection caused by the traditional visible light cutting off infrared transmission film, thereby not affecting the normal operation of the adjacent RGB camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0031] Figure 2 For Figure 1 The cross-sectional structure diagram of the vehicle shown is cut along AA;

[0032] Figure 3 A schematic diagram of the structure of a column glass provided in an embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the structure of the column glass provided in an embodiment of the present application at another angle. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiments of the present application and their descriptions are used to explain the present application, but are not intended to limit the present application. Obviously, the described embodiments are only embodiments of a part of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work should belong to the scope of protection of the present application.

[0035] In actual applications, the cost of printing an infrared high-transmittance ink layer on the inner surface of the column glass is too high, and the infrared high-transmittance ink layer has poor UV aging resistance and a short service life under a single-layer glass structure; and the technology using functional patches has a visible light cutoff infrared transmission film coated on the side of the functional patch facing the inside of the vehicle, and its high reflectivity in the visible light band will significantly deteriorate the function of the RGB camera. Therefore, the purpose of this application is to provide a column glass and a vehicle to solve the above technical defects in the prior art.

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of a vehicle 100 provided in an embodiment of the present application. Figure 2 yes Figure 1 The cross-sectional structure diagram of the vehicle 100 is shown after being cut along line AA, wherein "cut along line AA" means cutting along the plane where line AA is located.

[0037] The vehicle 100 provided in the embodiment of the present application may be, but is not limited to, a sedan, a truck, a pickup truck, a commercial vehicle, a bus, or an off-road vehicle, and the present application does not impose any restrictions on this. In the present embodiment, the vehicle 100 may include a vehicle body 120, a column glass 110, and a sensor 130. The column glass 110 and the sensor 130 are both mounted on the vehicle body 120. Among them, the column glass 110 can provide a signal transmission area for the sensor 130 to observe the environment outside the vehicle or collect data on the environment outside the vehicle. The column glass 110 can be used as the A-column glass, B-column glass, C-column glass, or D-column glass of the vehicle 100. The column glass 110 will be used as the B-column glass of the vehicle 100 as an example for explanation below.

[0038] In this embodiment, the sensor 130 is located on the side of the pillar glass 110 facing the inside of the vehicle body 120, and is spaced apart from and arranged opposite to the pillar glass 110. The sensor 130 has a signal receiving surface 130a. The signal receiving surface 130a is arranged toward the pillar glass 110. The angle α between the normal line of the signal receiving surface 130a and the pillar glass 110 is greater than or equal to 65°, and the angle β between the normal line of the pillar glass 110 and the horizontal line is less than or equal to 25°.

[0039] It is understandable that the optical signal emitted by the sensor 130 can pass through the pillar glass 110 to collect the surrounding environment information of the vehicle 100, and the part of the optical signal reflected by the objects in the surrounding environment can pass through the pillar glass 110 again and be received by the sensor 130, or the sensor 130 receives the optical signal transmitted or reflected by the objects in the surrounding environment and passing through the pillar glass 110, so that the sensor 130 can sense the surrounding environment information of the vehicle 100, so that the vehicle 100 can realize the recognition, judgment and display of the surrounding environment information, and then the vehicle 100 can realize the functions of assisted driving, face recognition and surround view. In this embodiment, the sensor 130 includes at least one infrared sensor or IR camera. In this embodiment, the number of sensors 130 can be one or more, and the embodiments of the present application are not strictly limited to this. Exemplarily, the sensor 130 can be an infrared camera. In some other embodiments, the sensor 130 can also be a laser radar, etc.

[0040] The above-mentioned column glass 110 is further described in detail below. Figure 3 The structure diagram of the column glass 110 provided in the embodiment of the present application is shown as follows. Figure 3 It can be seen that the pillar glass 110 includes a glass substrate 10 and a functional patch 40 .

[0041] The glass substrate 10 has a signal transmission area 11, which is used to allow the optical signal of the sensor 130 to pass through, so that the sensor 130 can achieve signal transmission. Exemplarily, the signal transmission area 11 is a circular area. In some other embodiments, the signal transmission area 11 can also be a square area or other special-shaped areas. The functional patch 40 is arranged in the first area 12 on the inner surface of the glass substrate 10 through the adhesive layer 30, and the adhesive layer 30 is connected between the glass substrate 10 and the functional patch 40. That is, the functional patch 40 is connected to the inner surface of the glass substrate 10 through the adhesive layer 30, and the inner surface of the glass substrate 10 here refers to the surface of the glass substrate 10 facing the inside of the car. Along the thickness direction of the glass substrate 10, the first area 12 at least completely covers the signal transmission area 11. In other words, the first area 12 is equal to or larger than the signal transmission area 11.

[0042] In this embodiment, the glass substrate 10 is a laminated glass or a single glass. The glass substrate 10 is an ultra-white glass, and the absorption coefficient of the ultra-white glass in the wavelength range of 920nm-980nm is within the range of 5nm. -1 -50m -1 Between, specifically 5m -1 、15m -1 、20m -1 、25m -1 、30m -1 、35m -1 、40m -1 、45m -1 、50m -1 Etc. Its thickness ranges from 2mm to 6mm, preferably from 2.3mm to 5mm, and more preferably from 2.5mm to 3.5mm. The glass substrate 10 of the present application has a thickness range of 2mm to 6mm, which provides flexibility in design, and the appropriate thickness can be selected according to specific application requirements, such as limiting the thickness to between 2.3mm and 5mm, or even between 2.5mm and 3.5mm. This choice can ensure that the weight is reduced as much as possible while meeting the strength and transmittance requirements. In addition, the visible light transmittance of the glass substrate 10 of the present application is greater than or equal to 70%, which means that it has a high transparency and is suitable for applications requiring high transmittance, ensuring that light can effectively penetrate the glass.

[0043] In this embodiment, the bonding layer 30 is selected from at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (SCA or EVA), ionomer (SGP), acrylic acid (AA), polyurethane (PU), ionomer resin, silicone resin, and polyvinyl acetate. The thickness of the bonding layer 30 is less than or equal to 900 μm, preferably between 100 μm and 800 μm, and more preferably between 200 μm and 700 μm.

[0044] Preferably, in this embodiment, the bonding layer 30 can be made of optical adhesive (OCA). OCA adhesive has excellent ultraviolet light blocking performance, so it can effectively intercept ultraviolet light and protect the infrared high-transmittance ink layer in the functional patch 40 from damage by ultraviolet rays. This protective effect greatly improves the working life of the infrared high-transmittance ink layer. In addition, OCA adhesive is an optically transparent adhesive that can be used in high-transparency applications. Its use ensures the optical performance of the entire sandwich structure in the functional patch 40 and does not affect the transparency and function of the signal transmission area 11. And as a bonding layer, OCA adhesive can stably connect the glass substrate and the functional patch to ensure the integrity and durability of the entire structure. In general, this application not only improves the durability of the infrared high-transmittance ink layer by using OCA adhesive, but also optimizes the optical performance and cost-effectiveness of the overall structure. The thickness of OCA adhesive is preferably between 150μm and 300μm, specifically 150μm, 200μm, 250μm, 300μm, etc.

[0045] In this embodiment, the functional patch 40 includes an infrared high-transmittance ink layer 41, a substrate 42, and an infrared anti-reflection film 43 which are stacked in sequence. The infrared high-transmittance ink layer 41 is on the surface of the substrate 42 facing the glass substrate 10, and the infrared anti-reflection film 43 is arranged on the surface of the substrate 42 facing away from the glass substrate 10. That is, the functional patch 40 of the present application is composed of the infrared high-transmittance ink layer 41, the substrate 42, and the infrared anti-reflection film 43 stacked in sequence. If the side of the substrate 42 facing the glass substrate 10 is taken as the first main surface, and the side opposite to the first main surface is taken as the second main surface, that is, the infrared high-transmittance ink layer 41 is located on the first main surface of the substrate 42, and the infrared anti-reflection film 43 is located on the second main surface of the substrate 42. It should be pointed out that the infrared anti-reflection film 43 can just completely cover the second main surface of the substrate 42, that is, the shape and size of the covering surface between them are just the same, and the infrared high-transmittance ink layer 41 also completely covers the first main surface of the substrate 42, and the shape and size of the covering surface between them are also just the same. The infrared high-transmittance ink layer 41 is in contact with the adhesive layer 30 , so that the functional patch 40 can be attached to the inner surface of the pillar glass 110 .

[0046] Preferably, the pillar glass 110 further includes a shielding layer 20, which is disposed in the second area of ​​the glass substrate 10, the second area does not overlap with the signal transmission area 11, and the second area partially overlaps with the first area 12. The shielding layer 20 located on the second area can avoid the optical signal emitted by the sensor 130, thereby preventing the shielding layer 20 from affecting the signal transmission of the sensor 130. The shielding layer 20 of the present application is also disposed on the inner surface of the glass substrate 10. The visible light transmittance of the shielding layer 20 is less than or equal to 10%, preferably, the visible light transmittance of the shielding layer 20 is less than or equal to 5%, more preferably less than or equal to 3%, further preferably less than or equal to 1%, even less than or equal to 0.5%, or substantially 0%, that is, it is not transparent to visible light. The shielding layer 20 can be used to shield and protect the parts inside the vehicle 100.

[0047] In this embodiment, the shielding layer 20 is usually formed by ceramic ink or ultraviolet ink by screen printing, inkjet printing, etc., and is formed by high-temperature sintering or UV curing. The shielding layer 20 is arranged around the edge area of ​​the inner surface. The color of the shielding layer 20 is usually a dark color, including but not limited to black, brown, brown, etc., to achieve a shielding effect. The thickness of the shielding layer 20 is preferably 15μm-40μm, specifically 15μm, 20μm, 25μm, 30μm, 35μm, 40μm, 45μm, etc.

[0048] Preferably, the infrared high-transmittance ink layer 41 in this embodiment has an optical transmittance of less than or equal to 20% in the wavelength range of 380nm-780nm, and an optical transmittance of greater than or equal to 85% in the wavelength range of 920nm-980nm. By keeping the visible light transmittance below 20%, the infrared high-transmittance ink layer 41 can act as a shield in the visible light range. This feature is very useful for concealing devices such as infrared sensors and IR cameras, because most of these devices do not require visible light. It also shows that the functional patch 40 of the present application cannot be applied to RGB cameras. RGB cameras need to have another functional patch window that matches it, such as a functional patch window using a visible light anti-reflection film. The optical transmittance of the infrared high-transmittance ink layer 41 in the near-infrared band (920nm-980nm) is greater than or equal to 85%, which is crucial for those devices that rely on infrared light, such as IR cameras and infrared sensors. The high transmittance ensures the effectiveness and sensitivity of the device in these bands, and there will be no performance degradation due to the influence of the functional patch 40. Preferably, the range of the second area and the signal transmission area 11 constitutes the inner surface of the entire glass substrate 10. The infrared high-transmittance ink layer 41 in the functional patch 40 has an optical transmittance of less than or equal to 20% in the visible light band (380nm-780nm), which complements the function of the shielding layer 20 to block visible light. The infrared high-transmittance ink layer 41 and the shielding layer 20 have the same color, thereby visually ensuring the appearance consistency and aesthetics of the column glass 110, avoiding visual incoordination caused by uneven light transmittance between different areas, and making the surface of the column glass 110 look more harmonious and beautiful.

[0049] Preferably, the main function of the infrared anti-reflection film 43 of this embodiment is to improve the optical transmittance in the near-infrared band (920nm-980nm), which is crucial for the normal operation of the IR camera and the infrared sensor, because it ensures that the near-infrared signal can effectively penetrate the column glass 110. For example, by using the infrared anti-reflection film 43, the optical transmittance of the signal transmission area 11 of the column glass 110 of the present application in the near-infrared band (920nm-980nm) can be increased to more than 90%, or even to more than 94%. This high transmittance ensures the efficient operation of the IR camera. In this embodiment, by using the infrared anti-reflection film 43, the problem of high visible light reflection caused by the traditional visible light cut-off infrared transmission film is eliminated, thereby not affecting the normal operation of the adjacent RGB camera. For example, the reflectivity of the infrared anti-reflection film 43 of the present application in the wavelength range of 380nm-780nm is less than or equal to 15%, specifically, the reflectivity is less than or equal to 10%, less than or equal to 5%, less than or equal to 3%, less than or equal to 1%, less than or equal to 0.5%, less than or equal to 0.3%, less than or equal to 0.2%, less than or equal to 0.1%, etc. The low transmittance of the infrared high-transmittance ink layer 41 in the visible light band and the high infrared transmittance of the infrared anti-reflection film 43 complement each other to ensure the optical performance of the overall structure. That is, the infrared anti-reflection film 43, the infrared high-transmittance ink layer 41 and the substrate 42 are combined to form an efficient optical system. In addition, the infrared anti-reflection film 43 is designed to replace the traditional visible light cut-off infrared transmission film, which can reduce the difficulty and cost of the coating process while reducing the thin film layer.

[0050] In the present embodiment, the thickness of substrate 42 is less than or equal to 1.1mm, preferably less than or equal to 0.7mm, and more preferably less than or equal to 0.5mm. In the present embodiment, the design and selection of the thickness of substrate 42 are carefully optimized to meet the requirements of high transmittance, light distortion and lightweight. Less than or equal to 1.1mm, this thickness provides basic mechanical strength and optical performance. When preferably less than or equal to 0.7mm, the weight of functional patch 40 is significantly reduced, which contributes to the lightweight of the overall structure, and this thickness can still provide enough mechanical strength. When more preferably less than or equal to 0.5mm, the weight of functional patch 40 can be reduced to the maximum extent, while keeping high transmittance and light distortion image small.

[0051] In the present embodiment, the optical transmittance of the substrate 42 in the near-infrared band (920nm-980nm) is greater than or equal to 90%, and preferably can be greater than 91%. The transmittance in the near-infrared band is greater than or equal to 90%, which ensures that the optical signal can be efficiently transmitted in the near-infrared band of 920-980nm, and is suitable for the application of infrared sensors. Preferably, the transmittance is greater than 91%, providing a higher transmittance, further reducing light loss, and ensuring that the sensor receives a clearer signal. Therefore, by optimizing the thickness and transmittance of the substrate 42, the present embodiment achieves a good balance between optical performance, weight and durability. In the present embodiment, the material of the substrate 42 can be glass or plastic, preferably glass. That is, the substrate 42 of the present application is preferably a glass sheet.

[0052] Preferably, in this embodiment, when the glass substrate 10 is 3.2 mm ultra-white glass and the thickness of the substrate 42 is 0.7 mm, the optical transmittance of the patch sandwich structure composed of the glass substrate 10, the adhesive layer 30, the infrared high-transmittance ink layer 41 and the substrate 42 in the near-infrared band (920nm-980nm) is between 85% and 89%, and more preferably between 86% and 88%. At the same time, after adding the infrared anti-reflection film 43, the optical transmittance of the patch sandwich structure composed of the glass substrate 10, the adhesive layer 30, the infrared high-transmittance ink layer 41, the substrate 42 and the infrared anti-reflection film 43 in the near-infrared band (920nm-980nm) can be increased to more than 90%, preferably to more than 92%, and more preferably to more than 94%.

[0053] In this embodiment, along the thickness direction perpendicular to the glass substrate 10, the projection of the functional patch 40 partially overlaps with the projection of the shielding layer 20. For details, please refer to Figure 3 and Figure 4 ,in Figure 4 It is a top view of the surface of the glass substrate 10 (taking the signal transmission area 11 as a circle as an example), the first area 12 completely covers the signal transmission area 11, and the first area 12 and the second area are provided with an overlapping area 13, and the spacing of the overlapping area 13 in the direction parallel to the inner surface of the glass substrate 10 is set to d, 4mm≤d≤12mm, and d is specifically 4mm, 6mm, 8mm, 10mm, 12mm, etc. Optionally, the overlapping area 13 is arranged circumferentially around the signal transmission area 11. This is because optical distortion is easily generated when the optical signal passes through the edge of the functional patch 40, and the shielding layer 20 is required to shield the optical distortion at the edge of the functional patch 40 to prevent affecting the signal transmission of the sensor 130.

[0054] In this embodiment, the adhesive layer 30 covers the signal transmission area 11 and the overlapping area 13, that is, at least part of the adhesive layer 30 overlaps with the shielding layer 20. When d < 4 mm, since the light distortion area caused by the edge of the functional patch 14 is not completely covered by the shielding layer 20, the optical distortion value of the signal transmission area 11 of the pillar glass 110 exceeds the standard range; when d > 12 mm, since the overlapping area of ​​the adhesive layer 30 and the shielding layer 20 is large, the thickness uniformity of the adhesive layer 30 in the overlapping area 13 will also cause optical distortion, and its optical distortion area will infringe the signal transmission area 11 of the pillar glass 110.

[0055] In this embodiment, the maximum optical distortion value of the signal transmission area 11 of the pillar glass 110 is less than 150 mpdt, and may be less than 120 mpdt, less than 100 mpdt, less than 80 mpdt, less than 60 mpdt, less than 40 mpdt, etc. It should be understood that when the functional patch 40 is attached to the glass substrate 10 through the adhesive layer 30, the pillar glass 110 is easily optically distorted due to factors such as the edge of the functional patch 40 and the filling rate of the adhesive layer 30. By making the maximum optical distortion value of the signal transmission area 11 of the pillar glass 110 less than 150 mdpt, the pillar glass 110 is prevented from optical distortion, thereby preventing the optical signal of the sensor 130 from being distorted after passing through the pillar glass 110, thereby ensuring that the signal transmission quality of the sensor 130 is better.

[0056] In this embodiment, the number of functional patches 40 is at least one. That is, the number of functional patches 40 can be one or more. Specifically, when the number of functional patches 40 is one, the number of sensors 130 can be one. At this time, the functional patch 40 provides a window for signal transmission to one sensor 130. In some other embodiments, when the number of functional patches 40 is one, the number of sensors 130 can also be more than one. At this time, the functional patch 40 provides a window for signal transmission to multiple sensors 130.

[0057] From the above description, it can be seen that the pillar glass and vehicle provided by the present application print an infrared high-transmittance ink layer 41 on the functional patch 40, so that the functional patch 40 obtains the effect of visible light cutting off infrared transmission, which can greatly reduce the amount of infrared high-transmittance ink and reduce costs without affecting the appearance and operation of the IR camera; in addition, the functional patch 40 of the present application is coated with an infrared anti-reflection film 43 on the surface facing the interior of the vehicle. Compared with the visible light cutting off infrared transmission film in the prior art, the coating process difficulty of the infrared anti-reflection film 43 is reduced, the film layer is thinner, and the cost is further reduced; finally, the infrared anti-reflection film 43 of the present application does not produce high reflection of visible light, and will not affect the normal operation of adjacent RGB cameras.

[0058] The following two specific embodiments and a comparative example illustrate that both the IR camera and the RGB camera can work normally in the above effect:

[0059] Comparative Example 1:

[0060] The pillar glass of this comparative example only has an RGB camera window, which refers to a window in the pillar glass used for optical signal transmission of the RGB camera in the car. Among them, the RGB camera window: 3mm ultra-white glass substrate + 300μm OCA glue + 0.5mm glass sheet + visible light anti-reflection film. The RGB camera video signal signal-to-noise ratio measured by an oscilloscope is 51dB, the video image is clear and can be used normally.

[0061] Embodiment 1:

[0062] The pillar glass of this embodiment has both an RGB camera window and an IR camera window. The RGB camera window refers to a window in the pillar glass used for optical signal transmission of the RGB camera in the vehicle, and the IR camera window refers to a window in the pillar glass used for optical signal transmission of the IR camera in the vehicle. Among them, the RGB camera window: 3mm ultra-white glass substrate + 300μm OCA glue + 0.5mm glass sheet + visible light anti-reflection film; IR camera window: 3mm ultra-white glass substrate + 300μm OCA glue + 0.5mm glass sheet + visible light cut-off infrared transmission film; the distance between the RGB camera window and the IR camera window on the same ultra-white glass substrate is 10cm. The signal-to-noise ratio of the RGB camera video signal measured by an oscilloscope is 39dB, the video image is blurred, and it cannot be used normally; the signal-to-noise ratio of the IR camera video signal measured by an oscilloscope is 49dB, and the video graphics are clear and can be used normally.

[0063] By comparing Comparative Example 1 with Example 1, it can be seen that when the RGB camera window of Comparative Example 1 is used alone, the RGB video image is clear and can be used normally. However, when an IR camera and a corresponding IR camera window are added to the adjacent part of the RGB camera in Example 1, if the functional patch at the IR camera window adopts the existing technology, the RGB camera video image will become blurred and cannot be used normally.

[0064] Embodiment 2:

[0065] The pillar glass of this embodiment has both an RGB camera window and an IR camera window. The RGB camera window refers to a window in the pillar glass used for optical signal transmission of the RGB camera in the vehicle, and the IR camera window refers to a window in the pillar glass used for optical signal transmission of the IR camera in the vehicle. Among them, the RGB camera window: 3mm ultra-white glass substrate + 300μm OCA glue + 0.5mm glass sheet + visible light anti-reflection film; IR camera window: 3mm ultra-white glass substrate + 300μm OCA glue + infrared high-transmittance ink layer + 0.5mm glass sheet + infrared anti-reflection film; the distance between the RGB camera window and the IR camera window on the same ultra-white glass substrate is 10cm. The signal-to-noise ratio of the RGB camera video signal measured by an oscilloscope is 52dB, the video image is clear and can be used normally, and the signal-to-noise ratio of the IR camera video signal measured by an oscilloscope is 50dB, the video image is clear and can be used normally.

[0066] By comparing Comparative Example 1 with Example 2, it can be seen that when an IR camera and a corresponding IR camera window are added to the adjacent part of the RGB camera in Example 2, if the functional patch at the IR camera window adopts the structure of the solution of the present application, both the RGB camera and the IR camera can be used normally. Therefore, the functional patch of the present application can solve the technical problem pointed out in the background technology that the RGB camera is affected and cannot be used normally.

[0067] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0068] The descriptions with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The order of steps involved in each embodiment is used to schematically illustrate the implementation of the present application, and the order of steps therein is not limited and may be appropriately adjusted as needed.

[0069] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0070] In the description of this application, when selecting a numerical range, unless otherwise specified, the number of the range is included.

[0071] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A column glass, characterized in that: The column glass comprises: a glass substrate having a signal transmission area for transmitting an optical signal of a sensor; and A functional patch, wherein the functional patch is disposed in a first area on the glass substrate, and the first area at least completely covers the signal transmission area; The functional patch includes an infrared high-transmittance ink layer, a substrate and an infrared anti-reflection film which are stacked in sequence. The infrared high-transmittance ink layer is arranged on the surface of the substrate facing the glass substrate, and the infrared anti-reflection film is arranged on the surface of the substrate facing away from the glass substrate.

2. The column glass according to claim 1, characterized in that: The pillar glass further includes a shielding layer, and the shielding layer is disposed in a second area of ​​the glass substrate, the second area does not overlap with the signal transmission area, and the second area partially overlaps with the first area.

3. The column glass according to claim 2, characterized in that: The visible light transmittance of the glass substrate is greater than or equal to 70%, and the visible light transmittance of the shielding layer is less than or equal to 10%.

4. The column glass according to claim 1, characterized in that: The optical transmittance of the infrared high-transmittance ink layer within the wavelength range of 380nm-780nm is less than or equal to 20%, and the optical transmittance within the wavelength range of 920nm-980nm is greater than or equal to 85%.

5. The column glass according to claim 1, characterized in that: The reflectivity of the infrared anti-reflection film in the wavelength range of 380nm-780nm is less than or equal to 15%.

6. The column glass according to claim 1, characterized in that: The pillar glass further includes an adhesive layer disposed in the first region on the glass substrate, and the adhesive layer is connected between the glass substrate and the functional patch.

7. The column glass according to claim 6, characterized in that: The bonding layer is optical glue, and the thickness of the optical glue is between 150 μm and 300 μm.

8. The column glass according to claim 6, characterized in that: The adhesive layer is selected from at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, ionomer, acrylic acid, polyurethane, ionomer resin, silicone resin, and polyvinyl acetate; and / or The thickness of the bonding layer is between 300 μm and 800 μm.

9. The column glass according to claim 1, characterized in that: The glass substrate is ultra-white glass, and the absorption coefficient of the ultra-white glass in the wavelength range of 920nm-980nm is within the range of 5m -1 -50m -1 between.

10. The column glass according to claim 1, characterized in that: The thickness of the substrate is less than or equal to 1.1 mm.

11. The column glass according to claim 1, characterized in that: The transmittance of the substrate within the wavelength range of 920nm-980nm is greater than or equal to 90%.

12. The pillar glass according to claim 1, characterized in that: The number of the functional patch is at least one.

13. A vehicle, characterized in that: The vehicle comprises a vehicle body, a sensor and a pillar glass as claimed in any one of claims 1 to 12, wherein the pillar glass and the sensor are both mounted on the vehicle body, the sensor is located on a side of the pillar glass facing the vehicle body and is spaced apart from and arranged opposite to the functional patch.

14. The vehicle according to claim 13, characterized in that The sensor comprises a signal receiving surface, the signal receiving surface is arranged toward the pillar glass, and is spaced apart from and opposite to the functional patch, and an angle between a normal line of the signal receiving surface and the pillar glass is equal to or greater than 65°.

15. The vehicle according to claim 13, characterized in that The sensor includes an IR camera, and the IR camera is spaced apart from and arranged opposite to the functional patch.

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