CN116766891A - Vehicle windshield and vehicle - Google Patents

Abstract

The application provides a vehicle windshield and a vehicle, wherein the windshield comprises a laminated glass, a light transmission area and a coloring area, the laminated glass comprises an outer glass plate, an intermediate layer and an inner glass plate, the outer glass plate is provided with a first surface and a second surface which are opposite, the inner glass plate is provided with a third surface and a fourth surface which are opposite, and the intermediate layer is arranged between the second surface and the third surface; the visible light transmittance of the light-transmitting area is more than or equal to 70%; the coloring area is arranged along the transverse direction of the laminated glass, the coloring area is arranged near the top of the laminated glass, a coloring coating is further arranged on the laminated glass at the position corresponding to the coloring area, the coloring coating is arranged on the second surface of the outer glass plate and/or the third surface of the inner glass plate, and the visible light transmittance of the coloring coating is less than or equal to 50%; the interlayer of the laminated glass corresponding to the coloring area is a thermoplastic resin film with the visible light transmittance of 80% or more, thereby protecting the eyesight and driving safety of a driver and reducing the production cost.

Description

Vehicle windshield and vehicle

Technical Field

The application relates to the technical field of vehicle part manufacturing, in particular to a vehicle windshield and a vehicle.

Background

Vehicles have long been one of the important vehicles for human society. In order to ensure safe driving of a driver, colored polyvinyl butyral (PVB) is generally disposed above a windshield of the vehicle to block a part of unwanted sunlight, so as to prevent strong light from irradiating eyes of the driver, causing eye fatigue of the driver, and further protect eyesight and driving safety of the driver.

However, in the current large direction of development of intelligent vehicles, on-board sensors are necessary hardware for supporting the automatic driving, and sensors installed above the windshield of the vehicle generally have high requirements for visible light transmittance, so that the on-board sensors required for the automatic driving are contradictory to the requirements for protecting the vision and driving safety of the driver. At present, the color PVB is removed from the corresponding position on the vehicle windshield in the related art, and is replaced by the common PVB with high light transmittance, so that the requirements of a vehicle-mounted sensor for protecting the eyesight of a driver and driving safety are met, certain dimensional deviation exists between the color PVB and the common PVB, and obvious bright line defects exist in a gap at the joint of the color PVB and the common PVB, so that the recognition accuracy of the vehicle-mounted sensor on light is influenced, and the overall aesthetic degree of the vehicle windshield is also influenced.

Disclosure of Invention

The application discloses a vehicle windshield, which can solve the technical problem that the requirements of a vehicle-mounted sensor and protecting the eyesight and driving safety of a driver cannot be met at the same time.

In a first aspect, the present application provides a vehicle windscreen comprising:

a laminated glass comprising an outer glass sheet having first and second opposed surfaces, an interlayer, and an inner glass sheet having third and fourth opposed surfaces, the second and third surfaces being opposed, the interlayer being disposed between the second and third surfaces;

a light-transmitting region having a visible light transmittance of 70% or more;

the coloring area is arranged along the transverse direction of the laminated glass, the coloring area is positioned above the light transmission area, a coloring coating is arranged in the coloring area, the coloring coating is arranged on the second surface of the outer glass plate and/or the third surface of the inner glass plate, and the visible light transmittance of the coloring coating is less than or equal to 50%;

the visible light transmittance of the intermediate layer of the laminated glass corresponding to the colored region is 80% or more.

In the application, the coloring area is arranged along the transverse direction of the laminated glass, the coloring area is arranged near the top of the laminated glass, the position of the laminated glass corresponding to the coloring area is also provided with a coloring coating, the coloring coating is arranged on the second surface of the outer glass plate and/or the third surface of the inner glass plate, and the visible light transmittance of the coloring coating is less than or equal to 50 percent. That is, the colored coating can be used to absorb a portion of visible light (e.g., sunlight) to protect the vision and driving safety of the driver. In addition, the colored coating can also be used to replace colored PVB in the prior art to reduce production cost and improve production efficiency.

Optionally, the thickness of the colored coating is 5 μm to 15 μm.

Optionally, the vehicle windshield further comprises at least one sensor window, wherein the sensor window is an area on the laminated glass corresponding to the acquisition range of a sensor in the vehicle;

the visible light transmittance of the sensor window is greater than or equal to 70%;

the sensor window at least partially overlaps the colored region, and the colored coating is not disposed within the sensor window. That is, the colored coating disposed on the colored region is disposed on the second surface of the outer glass sheet and/or the third surface of the inner glass sheet to avoid the sensor window.

In the application, the coloring coating is arranged on the second surface of the outer glass plate and/or the third surface of the inner glass plate, avoiding the sensor window, so as to ensure that the vehicle-mounted sensor can receive light through the sensor window; simultaneously, colored coating can avoid colored PVB and ordinary PVB in the prior art two junction bright line defects, avoids vehicle windshield influences on the recognition accuracy of on-vehicle sensor light, has improved vehicle windshield's aesthetic measure.

Optionally, the coating has a notch completely surrounding the sensor window, the notch being contoured as a closed pattern.

Optionally, the coating has a notch partially surrounding the sensor window, the notch having a semi-closed profile.

Optionally, the laminated glass further comprises a shielding layer, the shielding layer is arranged on the second surface of the outer glass plate and/or the fourth surface of the inner glass plate in a way of avoiding the sensor window, and the shielding layer is positioned at the peripheral edge of the laminated glass.

Optionally, the visible light transmittance of the colored coating layer is equal to the visible light transmittance of the shielding layer, and the colored coating layer is made of the same material as the shielding layer.

Optionally, the visible light transmittance of the coloring coating and the shielding layer is 0.1% -1.5%.

Optionally, the visible light transmittance of the coloring coating layer is greater than the visible light transmittance of the shielding layer, and the coloring coating layer is made of a material different from that of the shielding layer.

Optionally, the material of the coloring coating comprises a color material and/or a light absorbing material, and the color material and/or the light absorbing material can at least absorb visible light with the wavelength ranging from 605nm to 700 nm.

Optionally, the colored coating includes a thickness gradient portion, and the thickness of the thickness gradient portion gradually decreases from the colored region toward the light-transmitting region.

In a second aspect, the application also provides a vehicle comprising a frame for carrying a vehicle windscreen as described in the first aspect, and a vehicle windscreen.

Optionally, the vehicle includes a rain sensing module and a camera module, and the orthographic projection ranges of the rain sensing module and the camera module on the inner glass plate are respectively and completely covered by one sensor window.

Drawings

For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic top view of a vehicle windshield according to an embodiment of the present application.

Fig. 2 is a schematic view of fig. 1 in partial cross-section along line I-I.

FIG. 3 is a schematic view in partial section along line II-II of FIG. 1.

Fig. 4 is a schematic cross-sectional view of one possible vehicle windshield of the related art.

Fig. 5 is a schematic cross-sectional view of a vehicle windshield according to an embodiment of the present application.

Fig. 6 is a schematic cross-sectional view of a vehicle windshield according to another embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of a vehicle windshield according to yet another embodiment of the present application.

Fig. 8 is a schematic cross-sectional view of a vehicle windshield according to still another embodiment of the present application.

Fig. 9 is a schematic cross-sectional view of a vehicle windshield according to an alternative embodiment of the present application.

Fig. 10 is a schematic cross-sectional view of a vehicle windshield according to another alternative embodiment of the present application.

Fig. 11 is a schematic top view of a vehicle windshield according to another embodiment of the present application.

Fig. 12 is a schematic top view of a vehicle windshield according to yet another embodiment of the present application.

Fig. 13 is a schematic view in partial section along line iii-iii of fig. 12.

Fig. 14 is a schematic top view of a vehicle according to an embodiment of the application.

Fig. 15 is a schematic cross-sectional view of a vehicle according to an embodiment of the present application.

Reference numerals illustrate: the vehicle windshield comprises a vehicle windshield body-1, an outer glass plate-11, a first surface-111, a second surface-112, an inner glass plate-12, a third surface-121, a fourth surface-122, a coloring coating layer-13, a notch-131, a thickness gradual part-132, an intermediate layer-14, a shielding layer-15, a light-transmitting area-1 a, a coloring area-1 b, a sensor window-1 c, a vehicle-2, a frame-21, a rain sensing module-22, an image pickup module-23, a colored PVB-10, a standard PVB-20 and a welding gap-30.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to fall within the scope of the present application.

The application provides a vehicle windshield 1, please refer to fig. 1, fig. 2 and fig. 3 together, fig. 1 is a schematic top view of a vehicle windshield according to an embodiment of the application; FIG. 2 is a schematic view in partial section along line I-I of FIG. 1; FIG. 3 is a schematic view in partial section along line II-II of FIG. 1. The vehicle windshield 1 comprises a laminated glass, a light-transmitting region 1a, a colored region 1b and at least one sensor window 1c. Wherein:

the laminated glass comprises an outer glass plate 11, an inner glass plate 12 and an intermediate layer 14, wherein the intermediate layer 14 is arranged between the inner glass plate 12 and the outer glass plate 11, and the intermediate layer 14 is used for bonding the inner glass plate 12 and the outer glass plate 11. Specifically, the outer glass sheet 11 has a first surface 111 and a second surface 112 that are opposite, the inner glass sheet 12 has a third surface 121 and a fourth surface 122 that are opposite, the second surface 112 is opposite to the third surface 121, and the intermediate layer 14 is disposed between the second surface 112 and the third surface 121.

In the present embodiment, the laminated glass is laminated via the outer glass plate 11 and the inner glass plate 12, and is bonded via the interlayer 14. The present application is exemplified by the outer glass plate 11 being a transparent glass near the outside of the vehicle, and the inner glass plate 12 being a transparent glass near the inside of the vehicle.

The light-transmitting region 1a is a transparent region transmitting visible light, and the visible light transmittance of the light-transmitting region 1a is 70% or more. Specifically, the light-transmitting area 1a provides a driver with a field of view for normal driving to meet safety driving and regulatory requirements. Alternatively, the visible light transmittance of the light-transmitting area 1a may be greater than or equal to 72%, 77%, 83%, 88%, 90%, 95%, and the visible light transmittance of the light-transmitting area 1a may be adjusted according to the actual situation, which is not limited in the present application.

In general, visible light (for example, sunlight) may be incident into the vehicle from the top of the vehicle windshield 1, and therefore, the colored region 1b is arranged in the lateral direction of the laminated glass, the colored region 1b is disposed near the top of the laminated glass, a colored coating layer 13 is further provided on the laminated glass at a position corresponding to the colored region 1b, and the colored coating layer 13 covers the colored region 1b in the projection of the colored region 1b in the thickness direction of the laminated glass; the colored coating 13 is disposed on the second surface 112 of the outer glass plate 11 and/or the third surface 121 of the inner glass plate 12, and the visible light transmittance of the colored coating 13 is less than or equal to 50%. That is, the colored coating 13 on the colored region 1b is disposed near the top of the laminated glass to absorb a part of unnecessary visible light for the purpose of protecting the vision of the driver and driving safety. As shown in fig. 1, the light-transmitting area 1a is connected to the edge of the colored area 1b, and the area of the light-transmitting area 1a is larger than the area of the colored area 1b in order not to affect the normal driving of the driver.

In this embodiment, the visible light transmittance of the colored coating 13 is 50% or less, so as to achieve the purpose of protecting the eyesight of the driver and driving safety. Optionally, the visible light transmittance of the colored coating 13 may be less than or equal to 45%, 40%, 35%, 30%, 25%, 20%, 15%, 12%, 10%, 5%, 3%, 1.5%, 1%, 0.5%, 0.3%, 0.1%. It will be appreciated that the colored coating 13 does not absorb all light, and that some visible light may be transmitted through the colored coating 13 to provide a certain amount of light to the driver. The color coating 13 may be adjusted according to the actual situation to obtain a corresponding percentage value of visible light transmittance, which is not limited by the present application.

It will be appreciated that the interlayer 14 is capable of joining the outer pane 11 and the inner pane 12 such that the vehicle windscreen 1 as a whole assumes a sandwich structure to improve the safety of the vehicle windscreen 1, meeting the safety standards and regulatory requirements of the vehicle windscreen 1. The material of the intermediate layer 14 may include one or a combination of two or more of polyvinyl butyral (PVB), ethylene Vinyl Acetate (EVA), thermoplastic polyurethane elastomer (TPU), polyolefin elastomer (POE), polyurethane (PU), and ionomer film (SGP). The intermediate layer 14 may be a single-layer structure or a multi-layer structure, and examples of the multi-layer structure include a double-layer structure, a three-layer structure, a four-layer structure, a five-layer structure, and the like. In the present embodiment, the intermediate layer 14 corresponding to the colored region 1b in the laminated glass is a thermoplastic resin film having a visible light transmittance of 80% or more. Preferably, the interlayer 14 is made of PVB (polyvinyl butyral), in particular standard PVB. The standard PVB can play a role in bonding, and on the other hand, the cost of the laminated glass can be obviously reduced, and the product competitiveness is improved.

In the present embodiment, if the vehicle windshield 1 is curved, the outer glass plate 11 and the inner glass plate 12 are coated with the coloring coat layer 13 after being curved. For example, typical temperatures for glass bending are 500 ℃ to 700 ℃. Preferably, the outer glass sheet 11 and the inner glass sheet 12 are bent in unison (i.e., simultaneously and using the same tool) because the shapes of the glass sheets are thereby optimally matched to one another for later lamination. The colored coating 13 is applied to the second surface 112 of the outer glass pane 11 and/or the third surface 121 of the inner glass pane 12. Thereafter, the at least one interlayer 14 is disposed between the outer glass sheet 11 and the inner glass sheet 12, and the outer glass sheet 11 and the inner glass sheet 12 are joined by lamination via the at least one interlayer 14 (i.e., standard PVB). That is, in the present embodiment, after the glass sheet is bent, the coloring coat 13 is applied, and the inner glass sheet 12 and the outer glass sheet 11 are bonded to each other by standard PVB to form a laminated glass. The vehicle windshield 1 of the present application utilizes the colored coating 13 instead of the colored PVB of the prior art for absorbing a portion of the unwanted visible light for the purpose of protecting the driver's vision and driving safety. In addition, compared with the use of colored PVB as an interlayer, the vehicle windshield 1 can adopt the traditional standard PVB to bond the inner glass plate and the outer glass plate to form the laminated glass, thereby reducing the production cost of the laminated glass and improving the competitiveness of the product.

It will be appreciated that the visible light transmittance of the intermediate layer 14 is inversely related to the thickness of the intermediate layer 14 in the stacking direction, that is, the greater the thickness of the intermediate layer 14 in the stacking direction, the less the visible light transmittance of the intermediate layer 14, and vice versa. It can be seen that the thickness of the intermediate layer 14 in the lamination direction is not excessively large for the view of normal driving of the driver and for providing light to the in-vehicle sensor through the sensor window 1c to sense the surrounding environment of the vehicle, and at the same time, the thickness of the intermediate layer 14 in the lamination direction is not excessively small for the purpose of adhering the outer glass plate 11 and the inner glass plate 12. In the present embodiment, the thickness of the intermediate layer 14 in the stacking direction ranges from 0.38mm to 0.76mm, and specifically, the thickness of the intermediate layer 14 in the stacking direction may range from 0.40mm, 0.45mm, 0.56mm, 0.67mm, 0.73mm, which is not limited in this application.

In the present embodiment, the thickness of the outer glass plate 11 and the inner glass plate 12 ranges from 1.6mm to 2.3mm. Specifically, the thickness of the outer glass plate 11 and the inner glass plate 12 may be 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm. The outer glass plate 11 and the inner glass plate 12 may be green or white in color, etc., so that the outer glass plate 11 and the inner glass plate 12 have high transmittance for visible light, which is advantageous for providing a normal driving vision for a driver to provide light for sensing the surrounding environment of the vehicle. The outer glass plate 11 and the inner glass plate 12 may be subjected to a heat strengthening or tempering process so that the outer glass plate 11 and the inner glass plate 12 have high supporting strength. It will be appreciated that in other possible embodiments, the thicknesses of the outer glass sheet 11 and the inner glass sheet 12 may be other values, and the colors, materials, properties, and treatments may be of other kinds, as the application is not limited in this regard.

In this embodiment, the sensor window 1c is an area of the laminated glass corresponding to an acquisition range of a sensor in a vehicle, a visible light transmittance of the sensor window 1c is 70% or more, the sensor window 1c and the colored area 1b are at least partially overlapped, and the colored coating 13 provided on the colored area 1b needs to avoid the sensor window 1c from being provided on the second surface 112 of the outer glass plate 11 and/or the third surface 121 of the inner glass plate 12.

In order to implement functions such as automatic driving of a vehicle, an in-vehicle sensor is generally required to sense the surrounding environment of the vehicle, wherein one sensing mode is that the in-vehicle sensor receives visible light through the reserved sensor window 1c so as to sense the surrounding environment of the vehicle. It will be appreciated that the sensor window 1c is typically located close to the top of the laminated glazing in the vehicle windscreen 1, so that the sensor window 1c is laterally provided with an onboard sensor to avoid obscuring the view of the driver's normal drive. In the present application, the sensor window 1c is disposed near the top of the vehicle windshield 1, and the sensor window 1c is still spaced from the upper edge of the laminated glass in the vehicle windshield 1. It can be seen that there is a conflict between the requirements of the colored coating 13 disposed near the top of the vehicle windshield 1 and the sensor window 1c, so in this embodiment, the colored coating 13 disposed on the colored region 1b needs to avoid the sensor window 1c, so as to avoid affecting the on-vehicle sensor to receive light through the sensor window 1c to sense the surrounding environment of the vehicle.

Please refer to fig. 4, fig. 4 is a schematic cross-sectional view of a possible vehicle windshield according to the related art. In the related art, a colored PVB10 is generally disposed in the colored region 1b, and a material having a color can reduce the transmittance of visible light, thereby absorbing a part of unwanted visible light, preventing sunlight from directly irradiating eyes of a driver, and improving the driving safety of the driver. Whereas for the part of the sensor window 1c the coloured PVB is removed, a light-transmitting standard PVB20 is provided and welded to the coloured PVB 10. As shown in fig. 4, due to a certain dimensional deviation between the color PVB10 and the standard PVB20, the welding gap 30 exists at the joint of the color PVB10 and the standard PVB20 in this arrangement, which results in obvious bright line defects, and not only affects the recognition accuracy of the vehicle-mounted sensor to light, but also affects the overall aesthetic degree of the vehicle windshield 1.

In order to solve the above-mentioned problems in the related art, in one possible embodiment, please refer to fig. 1, 3, 5 and 6, fig. 5 is a schematic cross-sectional view of a vehicle windshield according to an embodiment of the present application; fig. 6 is a schematic cross-sectional view of a vehicle windshield according to another embodiment of the present application. In the present embodiment, the colored coating 13 disposed in the colored region 1b is disposed along the lateral direction of the laminated glass, the colored coating 13 is disposed near the top of the laminated glass, and the colored coating 13 is disposed avoiding the sensor window 1c on the second surface 112 of the outer glass plate 11 and/or the third surface 121 of the inner glass plate 12, thereby avoiding affecting the on-vehicle sensor to receive light through the sensor window 1c to sense the surrounding environment of the vehicle. Meanwhile, the colored coating 13 can absorb a part of unwanted visible light (such as sunlight), so that strong light is prevented from irradiating eyes, and the purposes of protecting the eyesight of a driver and driving safety are achieved. As shown in fig. 3, the colored coating 13 is disposed on the second surface 112 of the outer glass pane 11; as shown in fig. 5, the colored coating 13 is disposed on the third surface 121 of the inner glass sheet 12; as shown in fig. 6, the colored coating 13 can be disposed on the second surface 112 of the outer glass sheet 11 and the third surface 121 of the inner glass sheet 12. It will be appreciated that the colored coating 13 may be disposed on the fourth surface 122 of the inner glass pane 12, and the disposed position of the colored coating 13 may be adjusted as required in practice, so as to achieve the desired visible light transmittance of the colored coating 13, which is not limited in the present application.

In this embodiment, when the colored coating 13 is formed on the second surface 112 of the outer glass plate 11 and/or the third surface 121 of the inner glass plate 12, the colored coating 13 is shielded to prevent the sensor window 1c from affecting the transmission of light by the sensor window 1 c; alternatively, after the second surface 112 of the outer glass plate 11 and/or the third surface 121 of the inner glass plate 12 are coated to form the coloring coating 13, a laser film removing manner is adopted on the sensor window 1c portion to avoid that the coloring coating 13 affects the transmission of light by the sensor window 1c. Thereafter, the at least one interlayer 14 is disposed between the outer glass plate 11 and the inner glass plate 12, and the outer glass plate 11 and the inner glass plate 12 are joined by lamination via the at least one interlayer 14. That is, in the present embodiment, the colored coating 13 is applied after the glass plate is bent, so that the occurrence of optical distortion in the vicinity of the sensor window 1c can be avoided, and the accuracy of recognizing light by the in-vehicle sensor is not affected. In addition, the colored coating 13 is used to replace the colored PVB10 in the related art, so that a welding gap 30 which affects the recognition accuracy of the light of the vehicle-mounted sensor is not present near the sensor window 1c, and therefore, the bright line defect at the joint of the colored PVB10 and the standard PVB20 in the related art is not generated, and the aesthetic degree of the vehicle windshield 1 is improved. It will be appreciated that in other possible embodiments, the process of preparing the colored coating 13 may be other processes, as the application is not limited in this regard.

In the present embodiment, the visible light transmittance of the sensor window 1c is greater than or equal to 70%, so that the light is provided to the vehicle-mounted sensor through the sensor window 1c to sense the surrounding environment of the vehicle. Optionally, the visible light transmittance of the sensor window 1c may be greater than or equal to 72%, 77%, 83%, 88%, 90%, 95%, and the visible light transmittance of the sensor window 1c may be adjusted according to the actual situation, which is not limited in the present application.

The electrical connection of the vehicle-mounted sensor may be provided between the outer glass plate 11 and the inner glass plate 12, thereby avoiding the mess of the lines in the vehicle. In one possible embodiment, please refer to fig. 5, fig. 7 and fig. 8 together, fig. 7 is a schematic cross-sectional view of a vehicle windshield according to another embodiment of the present application; fig. 8 is a schematic cross-sectional view of a vehicle windshield according to still another embodiment of the present application. Typically, the vehicle windshield 1 further comprises a shielding layer 15, the shielding layer 15 being arranged on the second surface 112 of the outer glass pane 11 and/or the fourth surface 122 of the inner glass pane 12 avoiding the sensor window 1c, and the shielding layer 15 being arranged at the peripheral edge of the laminated glass. The shielding layer 15 is used for shielding an electrical connection circuit arranged in the vehicle windshield 1, so that the electrical connection circuit in the vehicle windshield 1 is prevented from being directly observed from the outside, and the aesthetic degree of the vehicle windshield 1 is improved. In addition, the shielding layer 15 is designed to avoid the sensor window 1c, so that the influence on the light received by the vehicle-mounted sensor through the sensor window 1c can be avoided. As shown in fig. 7, the shielding layer 15 is disposed on the second surface 112 of the outer glass plate 11. As shown in fig. 5, the masking layer 15 may also be disposed on the fourth surface 122 of the inner glass pane 12. As shown in fig. 8, the shielding layer 15 may also be disposed on both the second surface 112 of the outer glass sheet 11 and the fourth surface 122 of the inner glass sheet 12. It is to be understood that the color of the shielding layer 15 is not limited to black, but may be gray, brown, or the like, as long as the shielding effect of the shielding layer 15 is not affected. Optionally, the shielding layer 15 may also be disposed on the third surface 121 of the inner glass sheet 12.

In one possible embodiment, please refer to fig. 9 and fig. 10 together, fig. 9 is a schematic cross-sectional view of a vehicle windshield according to an alternative embodiment of the present application; fig. 10 is a schematic cross-sectional view of a vehicle windshield according to another alternative embodiment of the present application. The shielding layer 15 is provided on the second surface 112 of the outer glass plate 11 as shown in fig. 9, and the colored coating 13 is provided on a side surface of the shielding layer 15 facing away from the outer glass plate 11. As shown in fig. 10, the shielding layer 15 is disposed on the second surface 112 of the outer glass plate 11 and the fourth surface 122 of the inner glass plate 12, and the colored coating 13 is disposed on a side surface of the shielding layer 15 facing away from the outer glass plate 11.

In one possible embodiment, referring to fig. 1, the colored coating 13 has a notch 131 completely surrounding the sensor window 1c, and the contour of the notch 131 is a closed figure. The front projection range of the notch 131 on the inner glass plate 12 completely covers the sensor window 1c in the thickness direction of the laminated glass. Specifically, the profile of the notch 131 is a closed pattern, which means a pattern in a closed state in the dimension. The outline of the notch 131 is a closed pattern, so that the light transmission area of the sensor window 1c can be increased, so as to increase the transmittance of visible light of the sensor window 1c. The vehicle windshield 1 has at least one sensor window 1c, and the colored coating 13 includes at least one notch 131, and the notches 131 are in one-to-one correspondence with the sensor windows 1c, that is, the number of the notches 131 is the same as the number of the sensor windows 1c.

It will be appreciated that in other possible embodiments, the profile of the notch 131 may be other shapes, as long as it does not affect the orthographic projection of the notch 131 onto the inner glass plate 12 to completely cover the sensor window 1c, which the present application is not limited to.

In one possible embodiment, please refer to fig. 11, fig. 11 is a schematic top view of a vehicle windshield according to another embodiment of the present application. The colored coating 13 has a notch 131 partially surrounding the sensor window 1c, the contour of the notch 131 being a semi-closed pattern. Specifically, the profile of the notch 131 is a semi-closed pattern, which means a pattern in a semi-closed state in the dimension. It will be appreciated that the present application is different from the previous embodiment in that the notch 131 of the coloring coating 13 partially overlaps the sensor window 1c, as shown in fig. 11, and this arrangement corresponds to different arrangement positions of the sensor window 1c, and can also increase the light transmission area of the sensor window 1c, thereby increasing the visible light transmittance of the sensor window 1c. The vehicle windshield 1 has at least one sensor window 1c, and the colored coating 13 includes at least one notch 131, and the position of the notch 131 corresponds to the sensor window 1c, that is, the number of the notches 131 is the same as the number of the sensor windows 1c.

It will be appreciated that in other possible embodiments, the profile of the notch 131 may be other shapes, as long as the visible light transmission of the sensor window 1c is not affected, as the application is not limited in this respect.

In one possible embodiment, the material of the coloring coating layer 13 includes a color material and/or a light absorbing material.

In the present embodiment, the colored coating layer 13 has a property of absorbing part of visible light by incorporating a coloring material in the colored coating layer 13 so that the colored coating layer 13 is colored, the material having a color may reduce the transmittance of visible light, or by incorporating a light absorbing material in the colored coating layer 13 so that the colored coating layer 13 has a light absorbing capability. It will be appreciated that the effect on the transmittance of visible light of the colored coating 13 is also different for the incorporation of color materials of different colors, for example, the visible light color in sunlight includes red, orange, yellow, green, blue, indigo, violet, wherein the wavelength range of visible light of red color is longest, between 605nm and 700nm, and therefore, incorporation of red color materials in the colored coating 13 can effectively reduce the transmittance of visible light; whereas the proportion of light absorbing material incorporated in the colored coating 13 is inversely related to the transmittance of visible light, i.e., the more the proportion of light absorbing material incorporated in the colored coating 13, the lower the transmittance of visible light.

It will be appreciated that in other possible embodiments, the material composition in the color coating layer 13 may be adjusted according to the actual situation, so as to adjust the transmittance of the visible light of the color coating layer 13, and the absorption of part of the visible light by the color coating layer 13 may be implemented in other manners, so as to achieve the reduction of the transmittance of the visible light of the color coating layer 13, which is not limited in the present application.

In one possible embodiment, the visible light transmittance of the colored coating layer 13 is equal to the visible light transmittance of the shielding layer 15, and the colored coating layer 13 is made of the same material as the shielding layer 15. The shielding layer 15 is a shielding region at a position corresponding to the vehicle windshield 1. In this way, the colored region 1b and the shielding region have the same color, which not only can avoid visual differences, but also facilitates the integrated molding of the vehicle windshield 1. Preferably, the visible light transmittance of the colored coating layer 13 and the shielding layer 15 is 0.1% -1.5%.

In one possible embodiment, the visible light transmittance of the colored coating layer 13 is greater than the visible light transmittance of the shielding layer 15, and the colored coating layer 13 is made of a material different from that of the shielding layer 15. In this way, the colored region 1b and the shielded region have different colors, so that the surface appearance of the vehicle windshield 1 has different colors in different regions.

In the present embodiment, by providing the coloring coat layer 13 on the second surface 112 of the outer glass plate 11 and/or the third surface 121 of the inner glass plate 12, the thickness of the coloring coat layer 13 in the lamination direction of the outer glass plate 11 and the inner glass plate 12, which is indicated by arrows in fig. 3, 5 and 6, can be controlled. It will be appreciated that the thickness of the colored coating layer 13 in the lamination direction is inversely related to the visible light transmittance of the colored coating layer 13, that is, the greater the thickness of the colored coating layer 13 in the lamination direction, the smaller the visible light transmittance of the colored coating layer 13, and vice versa. Therefore, in order to secure the effect of the colored coating 13 absorbing part of the visible light, the thickness of the colored coating 13 should not be too small. However, the thickness of the colored coating layer 13 is not preferably excessively large, which would otherwise easily cause surface irregularities of the colored coating layer 13, thereby affecting the optical performance and product quality of the vehicle windshield 1. In this embodiment, the thickness of the colored coating layer 13 is 5 μm to 15 μm (inclusive of the end points 5 μm and 15 μm). Specifically, the thickness of the colored coating layer 13 may be 6.0 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, which is not limited in the present application.

Since the thickness of the colored coating layer 13 in the lamination direction and the visible light transmittance of the colored coating layer 13 are inversely related. Accordingly, in one possible embodiment, referring to fig. 12 and 13 together, fig. 12 is a schematic top view of a vehicle windshield according to still another embodiment of the present application, and fig. 13 is a schematic partial cross-sectional view taken along line iii-iii in fig. 12. The colored coating 13 includes a thickness-gradual-change portion 132, and the thickness of the thickness-gradual-change portion 132 gradually decreases from the colored region 1b toward the light-transmitting region 1 a. In this way, the visual effect is better by gradually transitioning from the low visible light transmittance of the colored region 1b to the high visible light transmittance of the light-transmitting region 1 a. Preferably, the thickness-gradual-change portion 132 is provided on the colored region 1b at a portion near the light-transmitting region 1 a.

The application further provides a vehicle 2, referring to fig. 14, fig. 14 is a schematic top view of a vehicle according to an embodiment of the application. The vehicle 2 comprises a frame 21 and a vehicle windscreen 1 as described above, the frame 21 being for carrying the vehicle windscreen 1. Specifically, the vehicle windshield 1 is described above, and will not be described herein.

In the present embodiment, the in-vehicle sensor is at least one selected from the group consisting of a visible light camera, an infrared camera, a laser radar, a rain sensor, and a touch sensor. In the present embodiment, please refer to fig. 15, fig. 15 is a schematic cross-sectional view of a vehicle according to an embodiment of the present application. Specifically, the vehicle-mounted sensor mounted on the vehicle 2 may be the rain sensing module 22 and the camera module 23, where the rain sensing module 22 is configured to sense whether there is rain falling on the vehicle windshield 1 through the sensor window 1c, so as to provide a clearer driving field of view or a more comfortable driving environment for a driver in cooperation with a wiper, an air conditioning system, and the like in the vehicle 2; the camera module 23 is configured to obtain a view in front of the vehicle windshield 1 through the sensor window 1c, thereby assisting and prompting a driver to drive the vehicle 2, and improving a safety factor of the driver to drive the vehicle 2. The vehicle 2 includes a rain sensing module 22 and an image pickup module 23, and the front projection ranges of the rain sensing module 22 and the image pickup module 23 on the inner glass plate 12 are respectively covered by one of the sensor windows 1c.

The front projection ranges of the rain sensing module 22 and the image pickup module 23 on the inner glass plate 12 are respectively covered by one sensor window 1c, and the coloring coating 13 is arranged on the second surface 112 of the outer glass plate 11 and/or the third surface 121 of the inner glass plate 12 avoiding the sensor window 1c, so that the rain sensing module 22 and the image pickup module 23 can acquire light through the sensor window 1c to sense whether rainwater falls on the vehicle windshield 1 or acquire the view in front of the vehicle windshield 1. It will be appreciated that in other possible embodiments, the vehicle 2 may also include other types of onboard sensors, as the application is not limited in this regard.

The principles and embodiments of the present application have been described herein with reference to specific examples, the description of the above embodiments being only for the purpose of aiding in the understanding of the core concept of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (12)

1. A vehicle windshield comprising:

a laminated glass comprising an outer glass sheet having first and second opposed surfaces, an interlayer, and an inner glass sheet having third and fourth opposed surfaces, the second and third surfaces being opposed, the interlayer being disposed between the second and third surfaces;

a light-transmitting region having a visible light transmittance of 70% or more;

the coloring area is arranged along the transverse direction of the laminated glass, the coloring area is positioned above the light transmission area, a coloring coating is arranged in the coloring area, the coloring coating is arranged on the second surface of the outer glass plate and/or the third surface of the inner glass plate, and the visible light transmittance of the coloring coating is less than or equal to 50%;

the visible light transmittance of the intermediate layer of the laminated glass corresponding to the colored region is 80% or more.

2. The vehicle windshield according to claim 1, wherein the thickness of the colored coating is 5 μm to 15 μm.

3. The vehicle windshield of claim 1, further comprising at least one sensor window, the sensor window being an area of the laminated glass corresponding to an acquisition range of a sensor in a vehicle;

the visible light transmittance of the sensor window is greater than or equal to 70%;

the sensor window at least partially overlaps the colored region, and the colored coating is not disposed within the sensor window.

4. A vehicle windscreen as set forth in claim 3 wherein said coating has a notch completely surrounding said sensor window, said notch being contoured as a closed figure.

5. A vehicle windshield as claimed in claim 3, wherein the coating has a notch partially surrounding the sensor window, the notch being profiled in a semi-closed pattern.

6. A vehicle windscreen as set forth in claim 3 wherein said laminated glass further includes a masking layer disposed on said second surface of said outer glass pane and/or said fourth surface of said inner glass pane away from said sensor window, and said masking layer is disposed on a peripheral edge of said laminated glass.

7. The vehicle windshield according to claim 6, wherein the colored coating has a visible light transmittance equal to that of the shielding layer, and the colored coating is of the same material as the shielding layer.

8. The vehicle windshield of claim 7, wherein the colored coating and the masking layer each have a visible light transmission of 0.1% to 1.5%.

9. The vehicle windshield of claim 6, wherein the colored coating has a visible light transmittance that is greater than a visible light transmittance of the masking layer.

10. A vehicle windscreen according to claim 1, wherein the material of the coloured coating comprises a coloured material and/or a light absorbing material capable of absorbing at least visible light in the wavelength range 605nm to 700 nm.

11. The vehicle windshield of claim 1, wherein the colored coating includes a thickness taper that tapers in thickness from the colored region toward the light-transmitting region.

12. A vehicle comprising a frame for carrying a vehicle windscreen as claimed in any one of claims 1 to 11 and a vehicle windscreen.