Black-border display glass, black-border display system and vehicle

Abstract

Provided in the present application are black-border display glass, a black-border display system and a vehicle. The black-border display glass comprises an outer glass plate, a first bonding layer and an inner glass plate, wherein the outer glass plate comprises a first surface and a second surface, which face away from each other; the inner glass plate comprises a third surface and a fourth surface, which face away from each other; and the first bonding layer is connected between the second surface and the third surface. The black-border display glass has a light-transmitting area and a shielding area; and at least one display area is provided in the shielding area. The black-border display glass further comprises a second bonding layer and a functional reflecting layer, wherein the second bonding layer is located in the shielding area and is connected to the fourth surface; and the functional reflecting layer is connected to the second bonding layer and is located on the side of the second bonding layer facing away from the fourth surface, and the functional reflecting layer covers at least the display area. The present application can prevent the formation of a ghost image, prevents unnecessary interference caused by the ghost image to the sightlines of drivers and passengers, and facilitates the drivers and passengers in seeing a clearer display image, thereby improving the driving safety and visual comfort.

Description

Black border display glass, black border display system and vehicle

[0001] The present application claims priority to the Chinese patent application No. 202410859258.0, filed on June 28, 2024, entitled "Black border display glass, black border display system and vehicle", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicle, in particular to a black border display glass, a black border display system and a vehicle. BACKGROUND

[0003] With the development of vehicle intelligentization, automation and networking technologies, vehicles can provide various information to drivers and passengers, such as vehicle information, road information, social media information and even entertainment information, etc. Generally, head-up display systems (HUD), instrument panels, center screens, co-pilot display screens and their combinations can be used to achieve multi-form, long-short multi-level display requirements, thereby bringing more comfortable, safe, intelligent experience and rich information to drivers and passengers.

[0004] For the display of instrument panels, center screens, etc., drivers and passengers need to look down to observe, and the line of sight of the human eye will temporarily leave the road surface, thereby causing a driving safety hazard. For traditional head-up displays (HUD), the HUD image is displayed on the light transmission area of the front windshield, and the environment outside the vehicle serves as the display background of the HUD image. The brightness of the environment outside the vehicle and other interfering light will affect the observation of the HUD image by the driver, thereby reducing driving safety and visual comfort. SUMMARY

[0005] The purpose of the present application is to provide a black border display glass, a black border display system and a vehicle, which can avoid the influence of the brightness of the environment outside the vehicle and other interfering light on the observation of the HUD image by the driver, thereby improving driving safety and visual comfort.

[0006] The embodiment of the present application provides a black border display glass, which comprises an outer glass plate, a first bonding layer and an inner glass plate, the outer glass plate comprises a first surface and a second surface arranged oppositely, the inner glass plate comprises a third surface and a fourth surface arranged oppositely, and the first bonding layer is connected between the second surface and the third surface. The black border display glass has a light transmission area and a shielding area, the visible light transmittance of the light transmission area is greater than or equal to 70%, the visible light transmittance of the shielding area is less than or equal to 5%, and at least one display area is arranged in the shielding area. The black border display glass further comprises a second bonding layer and a functional reflection layer, the second bonding layer is located in the shielding area and connected to the fourth surface, the functional reflection layer is connected to the second bonding layer and located on a side of the second bonding layer away from the fourth surface, and the functional reflection layer covers at least the display area. The display area has a P light reflectance Rp for P polarized light with a wavelength of 380-780 nm at an incident angle of 69°, and the P light reflectance Rp is greater than or equal to 20%.

[0007] In an embodiment, the shielding area comprises a bottom shielding area located below the light transmission area, and the display area is located in the bottom shielding area. The ratio of the total area of the display area to the area of the bottom shielding area is 10%-110%, or 15%-105%, or 20%-100%, or 30%-95%, or 40%-90%.

[0008] In an embodiment, the black border display glass further comprises a shielding layer, the shielding layer is arranged in the shielding area, the shielding layer is located between the outer glass plate and the functional reflection layer, and the material of the shielding layer is selected from at least one of a dark ink, an opaque polymer film and a light control film.

[0009] In an embodiment, the shielding layer in the bottom shielding area is composed of a first shielding sublayer and a second shielding sublayer, the material of the first shielding sublayer is a dark ink, and the material of the second shielding sublayer is an opaque polymer film or a light control film.

[0010] In an embodiment, the thickness of the second bonding layer is less than or equal to the thickness of the first bonding layer, the thickness of the second bonding layer is 0.1-0.5 mm, the material of the second bonding layer is selected from at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, polyurethane, ionic polymer, OCA optical glue, SCA optical glue and OCR optical transparent resin, and the bonding force between the second bonding layer and the functional reflection layer is greater than or equal to 1 MPa. The visible light transmittance of the second bonding layer is greater than or equal to 70%. Alternatively, the visible light transmittance of the second bonding layer is less than or equal to 50%.

[0011] In one embodiment, the black border display glass further comprises a protective substrate comprising a fifth surface and a sixth surface disposed opposite to each other, the protective substrate is located on a side of the second adhesive layer away from the fourth surface, and the functional reflective layer is a mirror ink layer, a high-low refractive index stack, a metal stack, a holographic film, or a stacked polymer film.

[0012] In one embodiment, the material of the protective substrate is soda lime glass, high alumina glass, lithium alumina glass, borosilicate glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate. The thickness of the protective substrate is 0.05 mm to 1.6 mm, or 0.1 mm to 1.0 mm.

[0013] In one embodiment, the functional reflective layer is a mirror ink layer, a high-low refractive index stack, or a metal stack. The functional reflective layer is disposed on the fifth surface, and the visible light transmittance of the protective substrate is greater than or equal to 70%. Alternatively, the functional reflective layer is disposed on the sixth surface, and the visible light transmittance of the protective substrate is less than or equal to 50%.

[0014] In one embodiment, the black border display glass further comprises an anti-fog coating, an anti-fingerprint coating, an anti-glare film, an anti-reflective coating, an S-polarization film, or a first electric heating element, the anti-fog coating, the anti-fingerprint coating, the anti-glare film, the anti-reflective coating, or the S-polarization film is disposed on the sixth surface, and the first electric heating element is disposed on the fifth surface or the sixth surface.

[0015] In one embodiment, the ratio between the thickness of the second adhesive layer and the thickness of the protective substrate is 0.3 to 4, and the ratio between the visible light transmittance of the second adhesive layer and the visible light transmittance of the protective substrate is less than or equal to 1.

[0016] In one embodiment, the protective substrate has a wedge-shaped cross-sectional profile, and the wedge angle of the wedge-shaped cross-sectional profile is 0.05 mrad to 0.5 mrad.

[0017] In one embodiment, the functional reflective layer is a holographic film or a stacked polymer film, and the black border display glass further comprises a third adhesive layer connected to the functional reflective layer and located on a side of the functional reflective layer away from the second adhesive layer, and the fifth surface is connected to the third adhesive layer and located on a side of the third adhesive layer away from the functional reflective layer.

[0018] In one embodiment, the third adhesive layer has a thickness of 0.01mm to 0.1mm, a visible light transmittance greater than or equal to 80%, and a haze less than or equal to 1%. In one embodiment, the third adhesive layer has a wedge-shaped cross-sectional profile with a wedge angle of 0.05mrad to 0.5mrad.

[0019] In one embodiment, the third adhesive layer is made of at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, polyurethane, ionic polymer, OCA optical glue, SCA optical glue, or OCR optical transparent resin. The third adhesive layer has an adhesive strength with the protective substrate greater than or equal to 1MPa.

[0020] In one embodiment, the ratio of the thickness of the second adhesive layer to the thickness of the third adhesive layer is greater than or equal to 3, and the ratio of the visible light transmittance of the second adhesive layer to the visible light transmittance of the third adhesive layer is less than or equal to 1.

[0021] In one embodiment, the sum of the thickness of the third adhesive layer and the thickness of the protective substrate is less than or equal to 1.38mm. Alternatively, the sum of the thickness of the third adhesive layer and the thickness of the protective substrate is less than or equal to 1.1mm. Alternatively, the sum of the thickness of the third adhesive layer and the thickness of the protective substrate is less than or equal to 0.9mm.

[0022] In one embodiment, the black border display glass further comprises a heat insulation layer selected from at least one of a single silver nano-coating, a double silver nano-coating, a triple silver nano-coating, a quadruple silver nano-coating, an ITO nano-coating, an FTO nano-coating, and an infrared blocking micron-coating, and the total solar energy transmittance of the black border display glass with the heat insulation layer is less than or equal to 55%.

[0023] In one embodiment, the black border display glass further comprises an electric heating element and at least two busbars, the busbars are electrically connected to the electric heating element, the electric heating element is a single silver electric heating coating, a double silver electric heating coating, a triple silver electric heating coating, a quadruple silver electric heating coating, a five-silver electric heating coating, a TCO electric heating coating, a metal wire, a printed silver paste line, a nano-silver line, a carbon fiber wire, a metal mesh, or a graphene heating sheet, and the electric heating element can make the black border display glass have a heating power density of at least 400W / m 2 .

[0024] The embodiment of the present application provides a black border display system, the black border display system comprises a projection device and the black border display glass, the projection device is used for emitting projection light with a wavelength of 380nm-780nm, the projection light contains at least 80% of P-polarized light, and the projection light is incident to the functional reflection layer at an incident angle of 65°-75°.

[0025] The embodiment of the present application also provides a vehicle, the vehicle comprises a vehicle body and the black border display system, the black border display glass is installed at an opening of the vehicle body, and the projection device is installed inside the vehicle body.

[0026] In the related art, for the display of an instrument panel, a central control screen and the like, a driver or a passenger needs to lower his / her head to observe, and the line of sight of the human eye is temporarily away from the road surface, thereby bringing a driving safety hazard. For a traditional HUD, a HUD image is displayed in a light transmission area of a front windshield, and an environment outside the vehicle serves as a display background of the HUD image, and the brightness of the environment outside the vehicle and other interfering light all affect the observation of the HUD image by a driver, and thus the driving safety and the visual comfort are reduced. In the embodiment of the present application, the display area is arranged in the shielding area, and the functional reflection layer covers at least the display area, so that the brightness of the environment outside the vehicle and other interfering light do not affect the observation of the HUD image by the driver, and this is conducive to making the field of view of the driver better and the line of sight of the driver be used for observing the real-time situation outside the vehicle for a longer time, so that the driver can more easily obtain necessary information such as driving information, entertainment information and the like for assisting driving, and the driving safety and the visual comfort are improved, so that the traditional instrument panel can be partially replaced or even completely replaced, and the traditional instrument panel can be even cancelled.

[0027] On the other hand, in the related art, because the inner glass plate has a certain thickness, the display image and the secondary image usually have a deviation angle, and the deviation angle is too large to easily form ghosting between the display image and the secondary image, the ghosting easily causes the driver or the passenger to be dizzy, also easily affects the field of view of the driver or the passenger, causes unnecessary interference to the line of sight of the driver or the passenger, and reduces the driving safety and the visual comfort. In the embodiment of the present application, the functional reflection layer is arranged on the side of the inner glass plate facing the inside of the vehicle, so that the projection light can not be affected by the thickness of the inner glass plate, the inner glass plate weakens the secondary image of the projection light incident at a high-angle incident angle greater than 60°, thereby preventing the deviation angle between the secondary image and the display image from being too large to form ghosting, and even eliminating the secondary image, and this is conducive to the driver being able to observe the clear and ghost-free display image formed by the reflection of the projection light on the functional reflection layer, and further improves the driving safety and the visual comfort. BRIEF DESCRIPTION OF DRAWINGS

[0028] FIG. 1 is a structural schematic diagram of a vehicle provided by the present application;

[0029] FIG. 2 is a structural schematic diagram of a black border display system provided by the present application;

[0030] Fig. 3 is a schematic view of a structure of the black border display glass according to the present application;

[0031] Fig. 4 is a schematic view of another structure of the black border display glass according to the present application;

[0032] Fig. 5 is a schematic view of a partial cross section of a second embodiment of the black border display glass according to the present application;

[0033] Fig. 6 is a schematic view of a partial cross section of a third embodiment of the black border display glass according to the present application;

[0034] Fig. 7 is a schematic view of a partial cross section of a fourth embodiment of the black border display glass according to the present application;

[0035] Fig. 8 is a schematic view of a partial cross section of a fifth embodiment of the black border display glass according to the present application;

[0036] Fig. 9 is a schematic view of a partial cross section of a sixth embodiment of the black border display glass according to the present application;

[0037] Fig. 10 is a schematic view of a partial cross section of a seventh embodiment of the black border display glass according to the present application;

[0038] Fig. 11 is a schematic view of a cross section of the black border display glass with a thermal insulation layer according to the present application;

[0039] Fig. 12 is a schematic view of a cross section of the black border display glass with a second electric heating element according to the present application.

[0040] The corresponding terms of the reference numerals in the figures are as follows: vehicle 1000, black border display system 100, black border display glass 10, light transmission area 11, shielding area 12, bottom shielding area 121, left shielding area 122, top shielding area 123, right shielding area 124, display area 13, functional reflection layer 14, outer glass sheet 15, first surface 151, second surface 152, first adhesive layer 16, inner glass sheet 17, third surface 171, fourth surface 172, shielding layer 18, first shielding sub-layer 181, second shielding sub-layer 182, second adhesive layer 19, third adhesive layer 20, protective substrate 21, fifth surface 211, sixth surface 212, thermal insulation layer 22, second electric heating element 23, second busbar 24, first electric heating element 25, first busbar 26, protective layer 27, projection device 200, projection light 201, vehicle body 300. DETAILED DESCRIPTION

[0041] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0042] In the embodiments of the present application, the terms "first", "second", and the like are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. And "multiple" in the present application means two or more.

[0043] Please refer to FIG. 1 and FIG. 2, FIG. 1 is a structural schematic diagram of a vehicle provided by the present application, and FIG. 2 is a structural schematic diagram of a black border display system provided by the present application.

[0044] The embodiments of the present application provide a vehicle 1000.

[0045] The vehicle 1000 comprises a vehicle body 300 and a black border display system 100. The black border display system 100 comprises a black border display glass 10 and a projection device 200. The black border display glass 10 is installed at an opening of the vehicle body 300, and the black border display glass 10 divides the vehicle body 300 into an outside of the vehicle body 300 and an inside of the vehicle body 300. The projection device 200 is installed in the inside of the vehicle body 300, and the projection device 200 is used for emitting projection light 201 with a wavelength of 380nm-780nm. The projection light 201 is incident to the black border display glass 10 at an incident angle of 65°-75°. The black border display glass 10 reflects the projection light 201 into the eyes of a driver or a passenger to form a display image. Therefore, the driver or the passenger can observe the display image without lowering the head, the field of view of the driver or the passenger is better, and the line of sight of the driver or the passenger is used for observing the real-time situation of the outside of the vehicle body 300 for a longer time. At the same time, the driver or the passenger can more easily obtain necessary information for assisting driving, such as driving information, entertainment information, and the like, and the driving safety is greatly improved. Therefore, the traditional instrument panel can be partially or even completely replaced, and the traditional instrument panel can be even cancelled.

[0046] The projection light 201 can contain at least 80% P-polarized light. The higher the proportion of P-polarized light in the projection light 201, the more conducive to meeting the use requirements of drivers wearing sunglasses and the easier to eliminate the visual ghosting phenomenon of the display image. For example, the projection light 201 contains at least 85% P-polarized light, or the projection light 201 contains at least 90% P-polarized light, or the projection light 201 contains at least 95% P-polarized light, or the projection light 201 is 100% P-polarized light, i.e. the projection light 201 is essentially pure P-polarized light.

[0047] The vehicle 1000 can be, but is not limited to, a car, a multi-purpose vehicle (MPV), a sport / suburban utility vehicle (SUV), an off-road vehicle (ORV), a pickup truck, a van, a bus, a truck, etc. In order to provide more display application scenarios for the vehicle 1000, the black border display glass 10 can be used as the front windshield, rear windshield, side window glass, or corner window glass of the vehicle 1000. In the specific embodiments of the present application, only the black border display glass 10 as the front windshield is described as an example.

[0048] For ease of description, in the present application, the length direction of the vehicle 1000 shown in FIG. 1 is defined as the X-axis direction, the width direction is defined as the Y-axis direction, and the height direction is defined as the Z-axis direction, wherein the X-axis, Y-axis and Z-axis directions are perpendicular to each other.

[0049] It should be noted that the "top", "bottom", "left", "right", "front" and "rear" and other orientation words mentioned in the description are described according to the orientation of the vehicle 1000 shown in FIG. 1 of the drawings, and the forward direction in the length direction of the vehicle 1000 is the positive direction of the X-axis, the direction from the left side to the right side in the width direction of the vehicle 1000 is the positive direction of the Y-axis, and the direction away from the ground in the width direction of the vehicle 1000 is the positive direction of the Z-axis.

[0050] Please refer to FIG. 3 and FIG. 4, FIG. 3 is a structural schematic diagram of the black border display glass according to the present application, and FIG. 4 is another structural schematic diagram of the black border display glass according to the present application. It should be noted that FIG. 3 and FIG. 4 are structural schematic diagrams of the black border display glass 10 viewed from the inside of the vehicle 1000.

[0051] The black border display glass 10 described in the present application has a light transmission area 11 and a shielding area 12. The shielding area 12 is arranged around the periphery of the light transmission area 11, the visible light transmittance of the light transmission area 11 is greater than or equal to 70%, so as to facilitate the observation of the environment outside the vehicle by the people inside the vehicle through the light transmission area 11. The visible light transmittance of the shielding area 12 is less than or equal to 5%, so as to facilitate the shielding, protection and overall aesthetics, etc. Preferably, the visible light transmittance of the shielding area 12 is less than or equal to 3%, more preferably less than or equal to 1%, further less than or equal to 0.5%, and even almost equal to 0, that is, non-transmission.

[0052] At least one display area 13 is arranged in the shielding area 12 described in the present application, and the display area 13 is used to reflect the incident projection light 201 to form a display image. The display image can display vehicle driving information, various patterns or play videos, etc., and can be used for various scenes such as welcoming, creating atmosphere, watching movies and office work. Specifically, the display image is used to display driving parameters, including vehicle speed, engine revolutions, fuel consumption, tire pressure, warning information, driving mileage, etc., and can also be used to display weather temperature, entertainment information, and can also be used as dynamic navigation, night vision, real scene map, etc. The display area 13 is located in the shielding area 12, and the number of the display area 13 can be one as shown in FIG. 3, or eight as shown in FIG. 4, and other numbers such as two, three or even more can be designed according to actual products.

[0053] The display area 13 is completely arranged in the shielding area 12, that is, the projection of the display area 13 along the thickness direction of the black border display glass 10 is completely located in the shielding area 12, and the display area 13 is surrounded by the shielding area 12. Specifically, along the height direction of the black border display glass 10, the shielding area 12 includes a bottom shielding area 121 located below the light transmission area 11. In the embodiment, the display area 13 is located in the bottom shielding area 121. Alternatively, the shielding area 12 further includes a left shielding area 122 located on the left side of the light transmission area 11, a top shielding area 123 located above the light transmission area 11, and a right shielding area 124 located on the right side of the light transmission area 11.

[0054] In order to improve the shielding effect of the shielding area 12 and facilitate the observation of the display area 13 by the people inside the vehicle, the ratio of the total area of the shielding area 12 to the area of the black border display glass 10 is preferably 5% to 50%. Specifically, it can be exemplified as 5%, 8%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, etc. More preferably, the ratio of the total area of the shielding area 12 to the area of the black border display glass 10 is 10% to 45%, or 15% to 40%, or 20% to 35%, so as to better balance the shielding effect of the shielding area 12 and the overall aesthetics of the black border display glass 10.

[0055] In order to improve the display effect of the display area 13 and facilitate the observation of the display area 13 by the person inside the vehicle, the ratio of the total area of the display area 13 to the area of the bottom shielding area 121 is preferably 10% to 110%, or 15% to 105%, or 20% to 100%, or 30% to 95%, or 40% to 90%, so that the display effect of the display area 13 and the overall aesthetics of the black border display glass 10 can be well balanced. Specifically, the ratio can be 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 100%, 105%, or 110%, etc. When the number of display areas 13 is greater than or equal to two, the total area of the display area 13 is equal to the sum of the areas of all display areas 13.

[0056] In FIG. 3, the display area 13 is a whole and the ratio of the total area of the display area 13 to the area of the bottom shielding area 121 is greater than or equal to 75%, or even almost covers the entire bottom shielding area 121, to form a through panoramic display effect from the A-pillar to the A-pillar.

[0057] It should be noted that the shape of the display area 13 and the number of display areas 13 can be set according to the actual application requirements of the vehicle 1000, and are not limited to the shape and number of display areas 13 shown in FIGS. 3 and 4.

[0058] The display area 13 described in the present application has a P light reflectance Rp for P polarized light with a wavelength of 380 nm to 780 nm at an incident angle of 69°, and the P light reflectance Rp is greater than or equal to 20%. Specifically, the P light reflectance Rp can be 20%, 25%, 30%, 35%, 40%, 42%, 45%, 48%, 50%, 55%, etc.; preferably, the P light reflectance Rp is 25% to 50%, so that the brightness of the projection display can be enhanced, the energy utilization rate of the projection device 200 can be improved, and the energy consumption of the projection device 200 can be reduced, which is beneficial to the miniaturization and heat dissipation design of the projection device 200.

[0059] Please refer to FIG. 2 again, which is a structural schematic diagram of the black border display system described in the present application, and FIG. 2 specifically shows a cross-sectional schematic diagram of the first embodiment of the black border display glass 10.

[0060] The black border display glass 10 is a laminated glass structure. The black border display glass 10 includes an outer glass sheet 15, a first bonding layer 16, and an inner glass sheet 17. Along the thickness direction of the black border display glass 10, the outer glass sheet 15, the first bonding layer 16, and the inner glass sheet 17 are sequentially connected, and the first bonding layer 16 connects the outer glass sheet 15 and the inner glass sheet 17. When the black border display glass 10 is installed on the vehicle body 300, the outer glass sheet 15 faces the outside of the vehicle 1000, and the inner glass sheet 17 faces the inside of the vehicle 1000.

[0061] The outer glass sheet 15 includes a first surface 151 and a second surface 152. The first surface 151 and the second surface 152 are oppositely arranged along the thickness direction of the outer glass sheet 15. When the black border display glass 10 is installed on the vehicle body 300, the first surface 151 of the outer glass sheet 15 faces the outside of the vehicle 1000, and serves as the outer surface of the black border display glass 10. The second surface 152 of the outer glass sheet 15 faces the first adhesive layer 16.

[0062] The inner glass sheet 17 includes a third surface 171 and a fourth surface 172. The third surface 171 and the fourth surface 172 are oppositely arranged along the thickness direction of the inner glass sheet 17. When the black border display glass 10 is installed on the vehicle body 300, the third surface 171 of the inner glass sheet 17 faces the first adhesive layer 16. The fourth surface 172 of the inner glass sheet 17 faces the inside of the vehicle 1000. The fourth surface 172 serves as the inner surface of the black border display glass 10. The first adhesive layer 16 connects the second surface 152 and the third surface 171.

[0063] The black border display glass 10 further includes a second adhesive layer 19 and a functional reflection layer 14. The second adhesive layer 19 is located in the shielding area 12 and connected to the fourth surface 172. The functional reflection layer 14 is connected to the second adhesive layer 19 and located on the side of the second adhesive layer 19 away from the fourth surface 172. The functional reflection layer 14 covers at least the display area 13, that is, the area of the functional reflection layer 14 is greater than or equal to the total area of the display area 13. The functional reflection layer 14 is used to improve the reflectivity of the display area 13 to P-polarized light. The projection light 201 is incident on the display area 13, and the functional reflection layer 14 in the display area 13 reflects the projection light 201 to form a display image that can be observed by the person inside the vehicle. The second adhesive layer 19 and the functional reflection layer 14 are both located in the bottom shielding area 121.

[0064] The black border display glass 10 further includes a shielding layer 18. The shielding layer 18 is arranged in the shielding area 12 and located between the outer glass sheet 15 and the functional reflection layer 14. The shielding area 12 is also commonly referred to as a black border area. In the present application, the functional reflection layer 14 is arranged in the shielding area 12 and the shielding layer 18 is located between the outer glass sheet 15 and the functional reflection layer 14. The shielding layer 18 can shield the functional reflection layer 14 in the thickness direction of the black border display glass 10, so that the shielding layer 18 can serve as a display background for image display, better shield external environmental light, avoid unnecessary interference of the line of sight, improve the contrast of the display image and the display background, achieve a higher color gamut, and make the image display clearer.

[0065] And, the functional reflection layer 14 is connected to the fourth surface 172 through the second bonding layer 19, so that the projection light 201 can not be affected by the thickness of the inner glass plate 17, and the inner glass plate 17 can avoid generating a sub-image for the projection light 201 with a high angle of incidence greater than 60°, thereby improving the clarity of the display image. Correspondingly, the present application has greater freedom in selecting the thickness of the inner glass plate 17, and can design more product combinations.

[0066] The outer glass plate 15 is transparent glass or colored glass, the thickness of the outer glass plate 15 is 0.7mm-4mm, and the visible light transmittance of the outer glass plate 15 is greater than or equal to 80%. The inner glass plate 17 is transparent glass or colored glass, the thickness of the inner glass plate 17 is 0.7mm-4mm, and the visible light transmittance of the inner glass plate 17 is greater than or equal to 80%. The total iron content (calculated as Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, further less than or equal to 0.01%, and the visible light transmittance of the transparent glass is 80%-95%. The total iron content (calculated as Fe2O3) of the colored glass is 0.1%-0.8%, preferably 0.1%-0.5%, and the visible light transmittance of the colored glass is 80%-90%. For example, the outer glass plate 15 can be transparent glass with a thickness of 2.1mm and a visible light transmittance of 89%, and the inner glass plate 17 can be green glass with a thickness of 1.6mm and a visible light transmittance of 83%, or green glass with a thickness of 2.1mm and a visible light transmittance of 80%.

[0067] The first adhesive layer 16 is a transparent thermoplastic polymer film or a colored thermoplastic polymer film, and the thickness of the first adhesive layer 16 is 0.38 mm to 2.28 mm. For example, the thickness of the first adhesive layer 16 can be, but is not limited to, 0.38 mm, or 0.76 mm, or 1.14 mm, or 1.52 mm, or 1.9 mm, or 2.28 mm, or other values between 0.38 mm and 2.28 mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionomer (SGP). When the first adhesive layer 16 is a transparent thermoplastic polymer, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 80%. For example, the visible light transmittance of the first adhesive layer 16 can be, but is not limited to, 80%, or 85%, or 90%, or 95%, etc. When the first adhesive layer 16 is a colored thermoplastic polymer film, the visible light transmittance of the colored thermoplastic polymer film is greater than or equal to 80%. For example, the visible light transmittance of the first adhesive layer 16 can be, but is not limited to, 80%, or 85%, or 90%, etc. The colored thermoplastic polymer film can be a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film. For example, the first adhesive layer 16 can be a single-layer structure or a multi-layer structure, such as a double-layer structure, a triple-layer structure, a four-layer structure, a five-layer structure, etc. The first adhesive layer 16 can also have other functions, such as providing at least one colored area as a shadow band to reduce the interference of sunlight on the human eye, or adding an infrared absorber to have a sunscreen or heat insulation function, or adding an ultraviolet absorber to have an ultraviolet shielding function, or having a higher plasticizer content in at least one layer of the multi-layer structure to have a sound insulation function.

[0068] The material of the shielding layer 18 is selected from at least one of a dark ink, an opaque polymer film, and a light control film. The shielding layer 18 can be connected to the second surface 152 of the outer glass sheet 15, and / or connected to the third surface 171 of the inner glass sheet 17, and / or connected to the fourth surface 172 of the inner glass sheet 17, and / or embedded in the first adhesive layer 16. In FIG. 2, the shielding layer 18 is connected to the second surface 152 of the outer glass sheet 15 and connected to the fourth surface 172 of the inner glass sheet 17.

[0069] The dark ink can be a ceramic ink or a UV ink. The ceramic ink or the UV ink is printed on the second surface 152, the third surface 171, and / or the fourth surface 172 by a screen printing, inkjet printing, etc. process, and forms the shielding layer 18 after curing or high-temperature sintering. The thickness of the shielding layer 18 formed by the dark ink is 5 μm to 40 μm.

[0070] The opaque polymer film can be a bulk-colored polymer film, such as adding black or brown coloring components in the polymer film manufacturing process, etc.; can be a polymer film printed with surface ink, paint or pigment, such as printing black ink, black paint or brown pigment on the surface of the polymer film, etc.; can also be a dyed or colored polymer film, such as coloring the polymer film with black or brown dye, etc.; the material of the polymer film can be polyvinyl butyral (PVB), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polycarbonate (PC), polymethyl methacrylate (PMMA), etc.; the opaque polymer film is embedded in the first adhesive layer 16, for example, the first adhesive layer 16 can be two pieces of thermoplastic polymer film, and the opaque polymer film is sandwiched between the two pieces of thermoplastic polymer film.

[0071] The dimming film can be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), etc. The minimum visible light transmittance of the dimming film is less than or equal to 3%, such as 3%, 2%, 1%, 0.5%, 0%. In addition, the maximum visible light transmittance of the dimming film is set as needed, such as 10%, 20%, 30%, 50%, 70%, 80%, etc. Specifically, for example: the visible light transmittance of the dimming film can be adjusted between 0% and 20%, or between 0.5% and 50%, or between 0% and 70%, etc. The dimming film can meet the requirements of visible light transmittance in multiple scenarios, such as when black border display is required, the dimming film is in an opaque state (visible light transmittance is less than or equal to 3%, or even 0%), to improve the contrast between the display image and the display background, and when no display is required, the dimming film is in a transparent state (visible light transmittance is greater than or equal to 70%), to achieve greater area transparency of the vehicle window glass; the dimming film is embedded in the first adhesive layer 16, for example, the first adhesive layer 16 can be two pieces of thermoplastic polymer film, and the dimming film is sandwiched between the two pieces of thermoplastic polymer film.

[0072] In some embodiments, the second adhesive layer 19 can be directly connected to the fourth surface 172 of the bottom shielding area 121. In other embodiments, the fourth surface 172 of the bottom shielding area 121 is provided with a shielding layer 18, and the second adhesive layer 19 can be directly connected to the shielding layer 18 of the fourth surface 172 of the bottom shielding area 121. The thickness of the second adhesive layer 19 is less than or equal to the thickness of the first adhesive layer 16, to reduce the overall thickness of the black border display glass 10, simplify the production process of the black border display glass 10, and reduce the production cost of the black border display glass 10. Preferably, the thickness of the second adhesive layer 19 is 0.1mm-0.5mm, and specific examples can be 0.1mm, 0.2mm, 0.3mm, 0.38mm, 0.45mm, 0.5mm, etc.

[0073] The material of the second bonding layer 19 can be selected from at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), ionomer (SGP), OCA (Optically Clear Adhesive), SCA (Solid Optically Clear Adhesive), OCR (Optical Clear Resin), and the like. In order to ensure the firmness of the functional reflective layer 14, the bonding force between the second bonding layer 19 and the functional reflective layer 14 is greater than or equal to 1 MPa; alternatively, the bonding force between the second bonding layer 19 and the functional reflective layer 14 is greater than or equal to 2 MPa; or alternatively, the bonding force between the second bonding layer 19 and the functional reflective layer 14 is greater than or equal to 5 MPa; or alternatively, the bonding force between the second bonding layer 19 and the functional reflective layer 14 is greater than or equal to 8 MPa; or even, the bonding force between the second bonding layer 19 and the functional reflective layer 14 is greater than or equal to 10 MPa.

[0074] In some embodiments, the visible light transmittance of the second bonding layer 19 is greater than or equal to 70%, for example, greater than or equal to 80%, or for example, greater than or equal to 85%, which is conducive to lower cost. In other embodiments, the visible light transmittance of the second bonding layer 19 is less than or equal to 50%, preferably less than or equal to 30%, more preferably less than or equal to 10%, further preferably less than or equal to 5%, or even less than or equal to 1%, which can block the projection light 201 from being incident on the fourth surface 172, the third surface 171, or even the second surface 152 to some extent, so that the projection light 201 can not be affected by the thickness of the outer glass sheet 15 and the inner glass sheet 17, avoiding the generation of a secondary image by the projection light 201 incident at a high angle of incidence of greater than 60°, and enabling the second bonding layer 19 to serve as part of the bottom shielding area 121, which can save the use of material of the shielding layer 18 to some extent and even partially replace the shielding layer 18, and is also conducive to reducing the manufacturing cost of the black border display glass 10.

[0075] The functional reflective layer 14 is used to increase the reflectivity of the display area 13 to P-polarized light, and can be exemplified by a mirror ink layer, a high-low refractive index stack, a metal stack, a holographic film, a stacked polymer film, and the like. The functional reflective layer 14 of the present application is connected to the fourth surface 172 through the second bonding layer 19, and in some embodiments, the black border display glass 10 further comprises a protective substrate 21 for protecting the functional reflective layer 14 and / or serving as a carrier for the functional reflective layer 14. The protective substrate 21 has a fifth surface 211 and a sixth surface 212 disposed opposite to each other, the fifth surface 211 faces the fourth surface 172, and the sixth surface 212 faces the interior of the vehicle 1000.

[0076] The thickness of the protective substrate 21 is 0.05mm to 1.6mm, and can be exemplified by 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm. In order to weaken or even eliminate the sub-image generated by the protective substrate 21 to the projection light 201 with a high angle of incidence greater than 60°, and considering the production difficulty and cost, the thickness of the protective substrate 21 is preferably 0.1mm to 1.0mm. The material of the protective substrate 21 is soda-lime glass, high-alumina glass, lithium-alumina glass, borosilicate glass, polyethylene terephthalate (PET), polymethyl methacrylate (PMMA) or polycarbonate (PC) and the like.

[0077] When the functional reflection layer 14 is a mirror ink layer, a high-low refractive index stack or a metal stack, the functional reflection layer 14 is arranged on the fifth surface 211 or the sixth surface 212. In some embodiments, the functional reflection layer 14 is arranged on the fifth surface 211, the visible light transmittance of the protective substrate 21 is greater than or equal to 70%, which is conducive to lower cost, and the projection light 201 is incident to the functional reflection layer 14 as much as possible. In other embodiments, the functional reflection layer 14 is arranged on the sixth surface 212, the visible light transmittance of the protective substrate 21 is less than or equal to 50%, preferably less than or equal to 40%, more preferably less than or equal to 30%, even less than or equal to 20%, which can block the projection light 201 from being incident to the fourth surface 172, the third surface 171 and even the second surface 152 to some extent, so that the projection light 201 can not be affected by the thickness of the outer glass plate 15 and the inner glass plate 17, avoiding the generation of sub-image by the projection light 201 with a high angle of incidence greater than 60°.

[0078] The functional reflection layer 14 can be a mirror ink layer, so that the reflectivity of the display area 13 to the projection light 201 is greater than or equal to 20%, and the visible light transmittance of the mirror ink layer is less than or equal to 5%, which can be exemplified by 5%, 4%, 3%, 2%, 1%, 0%, so that the mirror ink layer can be used as part of the bottom shielding area 121, which can save the use of material of the shielding layer 18 to some extent and even partially replace the shielding layer 18, which is conducive to reducing the manufacturing cost of the black border display glass 10. The mirror ink layer can be printed on the fifth surface 211 or the sixth surface 212 by printing process. Preferably, the surface roughness Ra of the mirror ink layer is less than or equal to 0.1μm, more preferably less than or equal to 0.05μm, and further preferably less than or equal to 0.025μm. The material of the mirror ink layer can be obtained in the market, for example, it can be purchased from Ferro Company, Johnson Matthey Company, Fenzi Company and the like.

[0079] The functional reflection layer 14 can be a high-low refractive index stack, which comprises at least one stack structure, each stack structure comprising a high refractive index layer and a low refractive index layer stacked in sequence, the high refractive index layer having a refractive index greater than or equal to 1.9, the low refractive index layer having a refractive index less than 1.8, and the high-low refractive index stack having a physical thickness of 100 nm to 800 nm. The high refractive index layer and the low refractive index layer can be deposited onto the fifth surface 211 or the sixth surface 212 by a physical vapor deposition process (PVD), in particular a magnetron sputtering process. The high-low refractive index stack can consist of only one stack structure of “high refractive index layer / low refractive index layer”, or can comprise at least two stack structures, for example two, three or four stack structures. The material of the high refractive index layer can include oxides or alloy oxides or nitrides or oxynitrides of zirconium (Zr), niobium (Nb), silicon (Si), antimony (Sb), tin (Sn), zinc (Zn), indium (In), aluminum (Al), nickel (Ni), chromium (Cr), magnesium (Mg), manganese (Mn), vanadium (V), tungsten (W), hafnium (Hf), tantalum (Ta), molybdenum (Mo), gallium (Ga), yttrium (Y), bismuth (Bi), titanium (Ti), etc., and can be exemplified by, for example, zinc tin oxide (ZnSnO x ), titanium oxide (TiO x ), niobium oxide (NbO x ), silicon nitride (SiN x ), silicon aluminum nitride (SiAlN x ), silicon zirconium nitride (SiZrN x ), etc. In order to better achieve the optical performance, mechanical performance, and appearance color of the functional reflection layer 14 to meet the comprehensive requirements of the vehicle window glass, the high refractive index layer can be a single layer structure, or a multi-layer structure including at least two high refractive index sub-layers, and the difference between the refractive indices of the two adjacent high refractive index sub-layers can be greater than or equal to 0.1. The material of the low refractive index layer can include oxides or alloy oxides or oxynitrides or carbides or fluorides of silicon (Si), aluminum (Al), magnesium (Mg), zirconium (Zr), etc., and can be exemplified by, for example, silicon oxide (SiO2), silicon aluminum oxide (SiAlO x ), silicon zirconium oxide (SiZrO x ), aluminum oxide (Al2O3), magnesium oxide (MgO), magnesium fluoride (MgF), etc. In order to better achieve the optical performance, mechanical performance, and appearance color of the functional reflection layer 14 to meet the comprehensive requirements of the vehicle window glass, the low refractive index layer can be a single layer structure, or a multi-layer structure including at least two low refractive index sub-layers.

[0080] The functional reflective layer 14 can be a metal stack including at least two dielectric layers and at least one metal layer, each metal layer being located between two adjacent dielectric layers, the physical thickness of the metal stack being 100 nm to 500 nm, the metal layers and the dielectric layers being deposited to the fifth surface 211 by a physical vapor deposition process (PVD), in particular a magnetron sputtering process. The number of metal layers can be, for example, 1, 2, 3, 4 or 5, etc., the material of the metal layers being selected from at least one of silver (Ag), gold (Au), copper (Cu) and aluminum (Al), the material of the metal layers being preferably silver or a silver alloy. The silver alloy is an alloy of silver and at least one of copper (Cu), gold (Au), platinum (Pt), nickel (Ni), chromium (Cr), titanium (Ti), aluminum (Al), indium (In), zinc (Zn), tin (Sn), the content of silver in the silver alloy being greater than or equal to 90%, preferably greater than or equal to 95%. The material of the dielectric layers is selected from oxides, nitrides or oxynitrides of at least one of Zn, Ti, Si, Al, Sn, Se, Zr, Ni, In, Cr, W, Ca, Y, Nb, Cu, Sm, for example, zinc tin oxide (ZnSnO x ), aluminum-doped zinc oxide (AZO), titanium oxide (TiO x ), silicon zirconium nitride (SiZrN), silicon aluminum nitride (SiALN), silicon aluminum oxide (SiAlO), etc.

[0081] When the functional reflective layer 14 is a holographic film or a laminated polymer film, the black border display glass 10 further includes a third adhesive layer 20 connected to the functional reflective layer 14 and located on the side of the functional reflective layer 14 away from the second adhesive layer 19, the fifth surface 211 being connected to the third adhesive layer 20 and located on the side of the third adhesive layer 20 away from the functional reflective layer 14. In the thickness direction of the black border display glass 10, the second adhesive layer 19, the functional reflective layer 14, the third adhesive layer 20 and the protective substrate 21 are sequentially stacked.

[0082] The functional reflective layer 14 can be a holographic film. The holographic (HOE) film refers to a film based on the principle of holographic action. An interference pattern is formed in the holographic film. After the projection light 201 is incident on the holographic film, diffraction occurs under the action of the interference pattern to form an image that can be observed by the person in the vehicle. Selecting the holographic film is beneficial to improve the geometric design freedom of the incidence angle of the projection light 201 and to weaken or even eliminate ghosting. The black border display glass further comprises a third adhesive layer 20 connected to the functional reflective layer 14 and located on the side of the functional reflective layer 14 away from the second adhesive layer 19. The fifth surface 211 is connected to the third adhesive layer 20 and located on the side of the third adhesive layer 20 away from the functional reflective layer 14. In the thickness direction of the black border display glass 10, the second adhesive layer 19, the holographic film, the third adhesive layer 20, and the protective substrate 21 are sequentially stacked. Preferably, the thickness of the holographic film is preferably 100 μm to 600 μm, and specific examples can be 100 μm, 120 μm, 150 μm, 180 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm, 500 μm, 550 μm, 600 μm, and more preferably 50 μm to 300 μm.

[0083] The functional reflective layer 14 can be a laminated polymer film. The thickness of the laminated polymer film is preferably 20 μm to 500 μm, and specific examples can be 20 μm, 50 μm, 80 μm, 100 μm, 120 μm, 150 μm, 180 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm, 500 μm, and more preferably 50 μm to 300 μm. The black border display glass further comprises a third adhesive layer 20 connected to the functional reflective layer 14 and located on the side of the functional reflective layer 14 away from the second adhesive layer 19. The fifth surface 211 is connected to the third adhesive layer 20 and located on the side of the third adhesive layer 20 away from the functional reflective layer 14. In the thickness direction of the black border display glass 10, the second adhesive layer 19, the laminated polymer film, the third adhesive layer 20, and the protective substrate 21 are sequentially stacked. The laminated polymer film is composed of tens, hundreds or even thousands of layers of resin films with different refractive indexes alternately stacked together. The material of the resin film can be at least one of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), syndiotactic polystyrene (sPS), polybutylene terephthalate (PBT), poly(cyclohexylene dimethylene terephthalate) (PCT), polyetherimide (PEI), and polymethyl methacrylimide (PMI). The laminated polymer film can be obtained on the market, for example, from 3M Company, Toray Industries, Inc., Shizuoka Chemical Industry Co., Ltd., and Eastman Chemical Company.

[0084] The material of the third bonding layer 20 can be selected from at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), ionomer (SGP), OCA (Optically Clear Adhesive), SCA (Solid Optically Clear Adhesive), OCR (Optical Clear Resin), etc. In order to ensure the firmness of the protective substrate 21, the bonding force between the third bonding layer 20 and the protective substrate 21 is greater than or equal to 1 MPa; alternatively, the bonding force between the third bonding layer 20 and the protective substrate 21 is greater than or equal to 2 MPa; or alternatively, the bonding force between the third bonding layer 20 and the protective substrate 21 is greater than or equal to 5 MPa; or alternatively, the bonding force between the third bonding layer 20 and the protective substrate 21 is greater than or equal to 8 MPa; or even, the bonding force between the third bonding layer 20 and the protective substrate 21 is greater than or equal to 10 MPa.

[0085] In order to ensure that the projection light 201 is incident to the functional reflection layer 14 as much as possible, the visible light transmittance of the protective substrate 21 is greater than or equal to 70%, preferably greater than or equal to 80%, and more preferably greater than or equal to 90%. At the same time, the thickness of the third bonding layer 20 is 0.01 mm to 0.1 mm, and can be exemplified by 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, etc.; the visible light transmittance of the third bonding layer 20 is greater than or equal to 80%, preferably greater than or equal to 90%, and more preferably greater than or equal to 95%; the haze of the third bonding layer 20 is less than or equal to 1%, preferably less than or equal to 0.5%, and more preferably less than or equal to 0.3%; which is more conducive to the observation of the display image by the person inside the vehicle.

[0086] In order to weaken or even eliminate the sub-image generated by the protective substrate 21 to the projection light 201 incident at a high angle of incidence greater than 60°, it is preferred that the sum of the thickness of the third bonding layer 20 and the thickness of the protective substrate 21 is less than or equal to 1.38 mm, more preferably less than or equal to 1.1 mm, further preferably less than or equal to 0.9 mm, and even preferably less than or equal to 0.7 mm, so as to facilitate the partial overlap of the sub-image generated by the reflection of the projection light 201 by the protective substrate 21 and the display image generated by the reflection of the projection light 201 by the functional reflection layer 14, i.e. to reduce the deviation angle between the sub-image and the display image to less than or equal to 2.1′.

[0087] In order to weaken or even eliminate the sub-image generated by the protective substrate 21 to the projection light 201 incident at a high angle of incidence greater than 60°, the third adhesive layer 20 or the protective substrate 21 preferably has a wedge-shaped cross-sectional profile, the wedge angle of the wedge-shaped cross-sectional profile is 0.05 mrad-0.2 mrad, and the wedge angle can make the sub-image generated by the reflection of the projection light 201 by the protective substrate 21 and the display image generated by the reflection of the projection light 201 by the functional reflection layer 14 partially overlap or even completely overlap with each other, that is, the deviation angle between the sub-image and the display image is reduced to less than or equal to 2.1'. When the deviation angle is greater than 2.1', ghosting will occur between the display image and the sub-image, and the greater the deviation angle between the display image and the sub-image, the more serious the ghosting phenomenon observed by the driver. Preferably, the deviation angle between the sub-image and the display image is less than or equal to 1.8', more preferably the deviation angle between the sub-image and the display image is less than or equal to 1.5', thereby reducing the degree of deviation between the sub-image and the display image, avoiding ghosting between the sub-image and the display image, preventing the driver's line of sight from being unnecessarily disturbed, helping the driver to see a clearer display image, and improving driving safety and visual comfort.

[0088] The ratio between the thickness of the second adhesive layer 19 and the thickness of the third adhesive layer 20 is greater than or equal to 3, preferably greater than or equal to 5, and more preferably greater than or equal to 7.5, which can not only ensure the overall bonding strength of the functional reflection layer 14, but also reduce the deviation angle between the sub-image and the display image as much as possible; the ratio between the visible light transmittance of the second adhesive layer 19 and the visible light transmittance of the third adhesive layer 20 is less than or equal to 1, preferably less than or equal to 0.8, and more preferably less than or equal to 0.5, which can not only ensure that as much projection light 201 as possible is incident to the functional reflection layer 14, but also make as little projection light 201 as possible incident to the fourth surface 172.

[0089] The ratio between the thickness of the second adhesive layer 19 and the thickness of the protective substrate 21 is 0.3-4, which can be specifically exemplified as 0.3, 0.4, 0.54, 0.6, 0.7, 0.8, 0.9, 1, 1.5, 1.8, 2, 2.2, 2.5, 2.8, 3, 3.5, 4, etc., and is preferably 0.5-2, which can not only ensure the overall bonding strength of the functional reflection layer 14, but also reduce the deviation angle between the sub-image and the display image as much as possible; the ratio between the visible light transmittance of the second adhesive layer 19 and the visible light transmittance of the protective substrate 21 is less than or equal to 1, preferably less than or equal to 0.8, and more preferably less than or equal to 0.5, which can not only ensure that as much projection light 201 as possible is incident to the functional reflection layer 14, but also make as little projection light 201 as possible incident to the fourth surface 172.

[0090] The present application takes the black border display glass shown in FIG. 2 as an example, selects different thicknesses of the second bonding layer 19 and the third bonding layer 20 and the protective substrate 21 for testing, counts the deviation angle between the secondary image and the display image into Table 1, and determines whether the ghosting is formed between the display image and the secondary image by determining whether the deviation angle exceeds 2.1′.

[0091] Table 1: Deviation angle between the display image and the secondary image of the four tests

[0092] From Table 1, it can be seen that:

[0093] In Comparative Example 1 and Examples 1-2, the thickness of the second bonding layer 19 is 0.38 mm, the thickness of the third bonding layer 20 is 0.05 mm, the third bonding layer 20 has a rectangular cross-sectional profile with a wedge angle equal to 0, the ratio between the thickness of the second bonding layer 19 and the thickness of the third bonding layer 20 is 1, and the size of the deviation angle between the secondary image and the display image is determined by changing the thickness of the protective substrate 21. From the test results, it can be seen that: in Comparative Example 1, the ratio between the thickness of the second bonding layer 19 and the thickness of the protective substrate 21 is less than 0.3, the sum of the thickness of the third bonding layer 20 and the thickness of the protective substrate 21 is greater than 1.38 mm, which makes the deviation angle of Comparative Example 1 greater than 3′, and there is obvious ghosting. In Example 1, the ratio between the thickness of the second bonding layer 19 and the thickness of the protective substrate 21 is 0.38, the sum of the thickness of the third bonding layer 20 and the thickness of the protective substrate 21 is less than or equal to 1.05 mm, which makes the deviation angle of Example 1 less than or equal to 2.1′, and there is no visually visible ghosting. In Example 2, the ratio between the thickness of the second bonding layer 19 and the thickness of the protective substrate 21 is 0.54, the sum of the thickness of the third bonding layer 20 and the thickness of the protective substrate 21 is less than or equal to 0.75 mm, which makes the deviation angle of Example 2 less than or equal to 1.6′, and there is no visually visible ghosting.

[0094] In Comparative Example 2 and Examples 3-4, the thickness of the second adhesive layer 19 is 0.38 mm, the thickness of the third adhesive layer 20 is 0.38 mm, the third adhesive layer 20 has a wedge-shaped cross-sectional profile with a wedge angle equal to 0.5 mrad or 0.7 mrad, the ratio between the thickness of the second adhesive layer 19 and the thickness of the third adhesive layer 20 is 7.6, and the size of the deviation angle between the secondary image and the display image is determined by changing the thickness of the protective substrate 21. According to the test results, in Comparative Example 2, the ratio between the thickness of the second adhesive layer 19 and the thickness of the protective substrate 21 is less than 0.3, the sum of the thickness of the third adhesive layer 20 and the thickness of the protective substrate 21 is greater than 1.38 mm, and even if the third adhesive layer 20 has a wedge angle of 0.7 mrad, the deviation angle of Comparative Example 2 is still greater than 2.5', and there is obvious ghosting. In Example 3, the ratio between the thickness of the second adhesive layer 19 and the thickness of the protective substrate 21 is 0.38, the sum of the thickness of the third adhesive layer 20 and the thickness of the protective substrate 21 is less than or equal to 1.38 mm, and the third adhesive layer 20 has a smaller wedge angle, so that the deviation angle of Example 3 is less than or equal to 1.9', and there is no visually visible ghosting. In Example 4, the ratio between the thickness of the second adhesive layer 19 and the thickness of the protective substrate 21 is 0.54, the sum of the thickness of the third adhesive layer 20 and the thickness of the protective substrate 21 is less than or equal to 1.08 mm, and the third adhesive layer 20 has a smaller wedge angle, so that the deviation angle of Example 2 is less than or equal to 1.4', and there is no visually visible ghosting.

[0095] The projection device 200 can be a projector or a display screen. The projection device 200 can be, for example, a Thin Film Transistor (TFT) display screen, an Organic Light-Emitting Diode (OLED) display screen, a Liquid Crystal On Silicon (LCOS) display screen, a Digital Light Processing (DLP) display screen, a Mini Light Emitting Diode (Mini LED) display screen, a Micro Light Emitting Diode (Micro LED) display screen, or the like. In this embodiment, the projection device 200 is a projector, and the projector is aligned with the functional reflection layer 14 located in the display area 13 of the black border display glass 10.

[0096] It should be noted that the projection light 201 emitted by the projection device 200 to the black border display glass 10 is projected into the display area 13 of the bottom shielding area 121 at an incident angle of 65° to 75°. Exemplarily, the projection light 201 emitted by the projection device 200 can be projected into the display area 13 of the bottom shielding area 121 at an incident angle of 68°, 69° or 70°.

[0097] Referring to FIG. 5, FIG. 5 is a partial cross-sectional schematic view of a second embodiment of the black border display glass according to the present application, and FIG. 5 specifically shows a cross-sectional schematic view of the display area 13.

[0098] Different from the first embodiment shown in FIG. 2, the black border display glass 10 in the present embodiment is not provided with the third adhesive layer 20 and the protective substrate 21, and is also not provided with the shielding layer 18 on the fourth surface 172, and the second adhesive layer 19 is directly adhered to the fourth surface 172 of the bottom shielding area 121, the functional reflection layer 14 is a holographic film or a stacked polymer film, and the functional reflection layer 14 is directly adhered to the side of the second adhesive layer 19 away from the fourth surface 172, the projection light 201 is directly incident to the functional reflection layer 14 and is reflected by the functional reflection layer 14 to form a display image, and since it is not affected by the protective substrate 21 and the inner glass plate 17, a display image of higher quality, higher clarity and without ghosting can be obtained.

[0099] Referring to FIG. 6, FIG. 6 is a partial cross-sectional schematic view of a third embodiment of the black border display glass according to the present application, and FIG. 6 specifically shows a cross-sectional schematic view of the display area 13.

[0100] Different from the first embodiment shown in FIG. 2, the black border display glass 10 in the present embodiment is not provided with the third adhesive layer 20, and is also not provided with the shielding layer 18 on the fourth surface 172, and the second adhesive layer 19 is directly adhered to the fourth surface 172 of the bottom shielding area 121, the functional reflection layer 14 is a mirror ink layer, a high-low refractive index stack or a metal stack, the functional reflection layer 14 is directly printed or directly deposited on the fifth surface 211 of the protective substrate 21, the projection light 201 is directly incident to the sixth surface 212 of the protective substrate 21 and is transmitted to the functional reflection layer 14 and is reflected by the functional reflection layer 14 to form a display image, and since the projection light 201 is incident at a high incident angle greater than 60°, in order to weaken or even eliminate the secondary image generated by the reflection of the projection light 201 by the sixth surface 212, the protective substrate 21 with a wedge-shaped cross-sectional profile and / or the protective substrate 21 with a thickness of 0.1 mm to 1.0 mm can be selected.

[0101] Referring to FIG. 7, FIG. 7 is a partial cross-sectional schematic view of a fourth embodiment of the black border display glass according to the present application, and FIG. 7 specifically shows a cross-sectional schematic view of the display area 13.

[0102] Different from the first embodiment shown in FIG. 2, the black border display glass 10 in the present embodiment is not provided with the third adhesive layer 20, and the shielding layer 18 is not provided on the fourth surface 172, the second adhesive layer 19 is directly adhered to the fourth surface 172 of the bottom shielding area 121, the functional reflection layer 14 is a mirror ink layer, a high-low refractive index stack or a metal stack, the functional reflection layer 14 is directly printed or deposited on the sixth surface 212 of the protective substrate 21, the projection light 201 is directly incident on the functional reflection layer 14 and is reflected by the functional reflection layer 14 to form a display image, and since the protective substrate 21 and the inner glass plate 17 have no influence, a display image of higher quality, higher clarity and without ghosting can be obtained.

[0103] Optionally, the first electric heating element 25 and the at least two first bus bars 26 are additionally arranged between the fifth surface 211 and the second adhesive layer 19, one of the at least two first bus bars 26 is electrically connected to the positive pole of a power supply (not shown), the other of the at least two first bus bars 26 is electrically connected to the negative pole of the power supply (not shown), and the current of the power supply is input into the first electric heating element 25 through the at least two first bus bars 26 to heat the first electric heating element 25 and thereby heat the sixth surface 212 of the protective substrate 21 to achieve a defogging function, thereby avoiding the interference of fog to the display image and further improving the driving safety. The voltage of the power supply described in the present application is 12V to 380V.

[0104] Please refer to FIG. 8, which is a partial cross-sectional schematic view of the fifth embodiment of the black border display glass described in the present application, and FIG. 8 specifically shows a cross-sectional schematic view of the display area 13.

[0105] Different from the first embodiment shown in FIG. 2, the black border display glass 10 in the present embodiment is not provided with the third adhesive layer 20, and the shielding layer 18 is not provided on the fourth surface 172, the second adhesive layer 19 is directly adhered to the fourth surface 172 of the bottom shielding area 121, the functional reflection layer 14 is a mirror ink layer, a high-low refractive index stack or a metal stack, the functional reflection layer 14 is directly printed or deposited on the sixth surface 212 of the protective substrate 21, the projection light 201 is directly incident on the functional reflection layer 14 and is reflected by the functional reflection layer 14 to form a display image, and since the protective substrate 21 and the inner glass plate 17 have no influence, a display image of higher quality, higher clarity and without ghosting can be obtained.

[0106] Referring to FIG. 9, FIG. 9 is a partial cross-sectional schematic view of a sixth embodiment of the black border display glass according to the present application, and FIG. 9 specifically shows a cross-sectional schematic view of the display area 13.

[0107] Unlike the first embodiment shown in FIG. 2, the black border display glass 10 in the present embodiment does not have the shielding layer 18 disposed on the fourth surface 172, and the sixth surface 212 of the protective substrate 21 is provided with a protective layer 27. The protective layer 27 can be an anti-fog coating, an anti-fingerprint coating, an anti-glare film, an anti-reflective coating, or an S-polarized light polarizer. When the protective layer 27 is an anti-fog coating, the anti-fog coating is used to slow down or avoid the fogging of the sixth surface 212 of the protective substrate 21, thereby avoiding the interference of the fog with the display image, and further improving the driving safety. When the protective layer 27 is an anti-fingerprint coating, the anti-fingerprint coating can improve the anti-fingerprint and anti-oil stain abilities of the sixth surface 212 of the protective substrate 21, effectively prevent the residue of fingerprints and oil stains, and also improve the hardness and wear resistance of the optical surface. For example, the AF film can be a silicone coating, or an acrylic coating, or a polyurethane coating, or a polyacrylate coating, or an organosiloxane coating, etc. When the protective layer 27 is an anti-glare film, the anti-glare film can reduce the glare and reflection caused by the reflection of ambient light on the sixth surface 212 of the protective substrate 21, thereby improving the visual comfort and clarity of the driver and passenger. For example, the anti-glare film can be a diffuse reflection PET, etc. When the protective layer 27 is an anti-reflective coating, the anti-reflective coating can reduce the reflection and scattering of ambient light on the sixth surface 212 of the protective substrate 21, and can improve the light transmittance and color reproduction ability of the sixth surface 212 of the protective substrate 21, thereby improving the display effect of the display image. For example, the anti-reflective coating can be a porous silica coating, a high-low refractive index laminated coating, etc. When the protective layer 27 is an S-polarized light polarizer, the S-polarized light polarizer can filter the S-polarized light in the ambient light, thereby suppressing the interference of the reflection of ambient light on the functional reflection layer 14 with the display image, and improving the visual comfort and clarity of the driver and passenger.

[0108] Referring to FIG. 10, FIG. 10 is a partial cross-sectional schematic view of a seventh embodiment of the black border display glass according to the present application, and FIG. 10 specifically shows a cross-sectional schematic view of the display area 13.

[0109] The shielding layer 18 in the bottom shielding area 121 is composed of a first shielding sub-layer 181 and a second shielding sub-layer 182. The first shielding sub-layer 181 is directly disposed on the second surface 152, and the second shielding sub-layer 182 is disposed in the first adhesive layer 16. The first shielding sub-layer 181 and the second shielding sub-layer 182 at least partially overlap in the thickness direction of the black border display glass 10.

[0110] The material of the first shielding sub-layer 181 is dark ink, and the material of the second shielding sub-layer 182 is an opaque polymer film or a light-adjustable film. Preferably, the second shielding sub-layer 182 is a light-adjustable film, which can better meet the requirement of visible light transmittance in multiple scenarios. For example, when image display is required, the light-adjustable film is in an opaque state (visible light transmittance is less than or equal to 3%, or even 0%), which improves the contrast between the displayed image and the display background. When no display is required, the light-adjustable film is in a transparent state (visible light transmittance is greater than or equal to 70%), which realizes greater transparency of the black border display glass 10 and improves the field of view of the person inside the vehicle for observing the environment outside the vehicle. Specifically, it can be understood that other forms can also be set according to actual conditions, for example, the second shielding sub-layer 182 is arranged in the first adhesive layer 16, and the first shielding sub-layer 181 is directly arranged on the third surface 171. For another example, the second shielding sub-layer 182 is arranged in the first adhesive layer 16, and the first shielding sub-layer 181 is directly arranged on the fourth surface 172.

[0111] Referring to FIG. 11, FIG. 11 is a sectional view of the black border display glass with a heat insulation layer according to the present application.

[0112] Different from the first embodiment shown in FIG. 2, the black border display glass 10 in the present embodiment is not provided with a shielding layer 18 on the fourth surface 172, and the third surface 171 of the inner glass plate 17 is provided with a heat insulation layer 22. The heat insulation layer 22 can make the black border display glass 10 have excellent heat insulation performance, thereby improving the thermal comfort of the environment inside the vehicle. Preferably, the total solar energy transmittance (TTS) of the black border display glass 10 with the heat insulation layer 22 is less than or equal to 55%, more preferably less than or equal to 50%, or even less than or equal to 45%. The lower the total solar energy transmittance, the better the heat insulation performance of the black border display glass 10. The heat insulation layer 22 can be arranged on the second surface 152, or arranged in the first adhesive layer 16, or arranged on the third surface 171, or arranged on the fourth surface 172.

[0113] The heat insulation layer 22 can be at least one selected from a single-silver nano coating, a double-silver nano coating, a triple-silver nano coating, a four-silver nano coating, an ITO nano coating, an FTO nano coating, and an infrared blocking micron coating.

[0114] The single silver nano coating, the double silver nano coating, the triple silver nano coating and the quadruple silver nano coating can be formed by a magnetron sputtering process, and the physical thickness of the single silver nano coating, the double silver nano coating, the triple silver nano coating and the quadruple silver nano coating is preferably 100 nm to 500 nm. The single silver nano coating is a transparent nano coating having one silver layer and at least two dielectric layers, the double silver nano coating is a transparent nano coating having two silver layers and at least three dielectric layers, the triple silver nano coating is a transparent nano coating having three silver layers and at least four dielectric layers, and the quadruple silver nano coating is a transparent nano coating having four silver layers and at least five dielectric layers. The material of the dielectric layer is selected from oxides, nitrides or oxynitrides of at least one of Zn, Ti, Si, Al, Sn, Se, Zr, Ni, In, Cr, W, Ca, Y, Nb, Cu and Sm.

[0115] The ITO nano coating can be formed by a magnetron sputtering process, and the physical thickness of the ITO nano coating is preferably 100 nm to 500 nm. The ITO nano coating is a transparent nano coating having at least one ITO (indium tin oxide) functional layer and at least two dielectric layers, and the material of the dielectric layer is selected from oxides, nitrides or oxynitrides of at least one of Zn, Ti, Si, Al, Sn, Se, Zr, Ni, In, Cr, W, Ca, Y, Nb, Cu and Sm. The FTO nano coating can be formed by a chemical vapor deposition process (CVD), and the physical thickness of the FTO nano coating is preferably 50 nm to 500 nm. The FTO nano coating is a transparent nano coating having at least one FTO (fluorine-doped tin oxide) functional layer.

[0116] The infrared barrier micron coating can be formed by a sol-gel method, and the thickness of the infrared barrier micron coating is 5 μm to 30 μm. The infrared barrier micron coating is a transparent micron coating having infrared barrier nano particles, and the material of the infrared barrier nano particles can be selected from at least one of ITO (indium tin oxide), FTO (fluorine-doped tin oxide), CWO (cesium-doped tungsten oxide), LaB6 and V2O5. The average particle size of the infrared barrier nano particles is 20 nm to 100 nm.

[0117] In some embodiments, the functional reflective layer 14 and the heat insulation layer 22 at least partially overlap in the thickness direction of the black border display glass 10, which is conducive to simplifying the production process of the heat insulation layer 22. In order to weaken or even eliminate the reflection of the heat insulation layer 22 to the projection light 201 to form a secondary image, a shielding layer 18 is preferably arranged on the heat insulation layer 22 and the functional reflective layer 14, or a second adhesive layer 19 with a visible light transmittance less than or equal to 50% is selected. In other embodiments, the functional reflective layer 14 and the heat insulation layer 22 do not overlap with each other in the thickness direction of the black border display glass 10, which can avoid the reflection of the heat insulation layer 22 to the projection light 201 to interfere with the display image formed by the functional reflective layer 14.

[0118] FIG. 12 is a cross-sectional view of the black border display glass with a second electric heating element according to the present application.

[0119] Unlike the first embodiment shown in FIG. 2, the black border display glass 10 in the present embodiment is not provided with the shielding layer 18 on the fourth surface 172, and the second electric heating element 23 and the at least two second bus bars 24 are additionally provided between the second surface 152 and the first adhesive layer 16. One of the at least two second bus bars 24 is electrically connected to the positive pole of the power supply (not shown), and the other of the at least two second bus bars 24 is electrically connected to the negative pole of the power supply (not shown). The current of the power supply is input into the second electric heating element 23 through the at least two second bus bars 24, so that the second electric heating element 23 generates heat to heat the black border display glass 10 to achieve the functions of defrosting, defogging, snow removal, and even ice removal, thereby further improving the driving safety. The second electric heating element 23 can be provided on the second surface 152, the third surface 171, the fourth surface 172, or embedded in the first adhesive layer 16. The second bus bars 24 are electrically connected to the second electric heating element 23. The voltage of the power supply according to the present application is 12V to 380V, and the second electric heating element 23 can enable the black border display glass 10 to have a heating power density of at least 400W / m 2 . Exemplarily, the second electric heating element 23 can enable the black border display glass 10 to have a heating power density of at least 800W / m 2 . Further exemplarily, the second electric heating element 23 can enable the black border display glass 10 to have a heating power density of at least 1000W / m 2 . Further exemplarily, the second electric heating element 23 can enable the black border display glass 10 to have a heating power density of at least 2000W / m 2 .

[0120] The second electric heating element 23 can be a single-silver electric heating coating, a double-silver electric heating coating, a triple-silver electric heating coating, a quadruple-silver electric heating coating, a quintuple-silver electric heating coating, a TCO electric heating coating, a metal wire, a printed silver paste wire, a nano-silver wire, a carbon fiber wire, a metal mesh or a graphene heating sheet, etc. The single-silver electric heating coating, the double-silver electric heating coating, the triple-silver electric heating coating, the quadruple-silver electric heating coating, the quintuple-silver electric heating coating and the TCO electric heating coating can be formed by a physical vapor deposition process (PVD) or a chemical vapor deposition process (CVD), and their physical thickness is preferably 100 nm to 500 nm. The single-silver electric heating coating is a transparent nano-coating with one silver layer and at least two dielectric layers, the double-silver electric heating coating is a transparent nano-coating with two silver layers and at least three dielectric layers, the triple-silver electric heating coating is a transparent nano-coating with three silver layers and at least four dielectric layers, the quadruple-silver electric heating coating is a transparent nano-coating with four silver layers and at least five dielectric layers, and the quintuple-silver electric heating coating is a transparent nano-coating with five silver layers and at least six dielectric layers. The TCO electric heating coating is a transparent nano-coating with at least one transparent conductive oxide (TCO) functional layer, the material of the TCO functional layer can be ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (aluminum-doped zinc oxide), etc., and the TCO electric heating coating can also include at least one dielectric layer. The material of the dielectric layer is selected from oxides, nitrides or oxynitrides of at least one of Zn, Ti, Si, Al, Sn, Se, Zr, Ni, In, Cr, W, Ca, Y, Nb, Cu and Sm. The metal wire can be at least one of a copper wire, a tungsten wire, an aluminum wire or a copper alloy wire, and the diameter of the metal wire is 0.01 mm-0.5 mm. The printed silver paste wire has a printed line width of 0.1 mm-1.0 mm and a printed thickness of 3 μm-20 μm. The nano-silver wire, the carbon fiber wire, the metal mesh or the graphene heating sheet can be obtained on the market.

[0121] The above has introduced the embodiments of the present application in detail, and the principles and implementation manners of the present application have been described by applying specific examples; the above description of the embodiments is only for helping to understand the method of the present application and its core idea; meanwhile, for the general technical personnel in the field, the specific implementation manners and application ranges will be changed according to the idea of the present application; in conclusion, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A black-bordered display glass, characterized in that, The black-edged display glass includes an outer glass panel, a first adhesive layer, and an inner glass panel. The outer glass panel includes a first surface and a second surface disposed opposite to each other. The inner glass panel includes a third surface and a fourth surface disposed opposite to each other. The first adhesive layer connects the second surface and the third surface. The black-edged display glass has a light-transmitting area and a shielding area. The visible light transmittance of the light-transmitting area is greater than or equal to 70%, and the visible light transmittance of the shielding area is less than or equal to 5%. At least one display area is provided in the shielding area. The black-edged display glass further includes a second adhesive layer and a functional reflective layer. The second adhesive layer is located within the shielding area and connected to the fourth surface. The functional reflective layer is connected to the second adhesive layer and located on the side of the second adhesive layer opposite to the fourth surface. The functional reflective layer at least covers the display area. The display area has a P-light reflectivity Rp for P-polarized light with wavelengths of 380nm-780nm incident at an incident angle of 69°, and the P-light reflectivity Rp ≥ 20%.

2. The black-bordered display glass according to claim 1, characterized in that, The shielding area includes a bottom shielding area located below the light-transmitting area, and the display area is located within the bottom shielding area; The ratio of the total area of ​​the display area to the area of ​​the bottom shielding area is 10% to 110%, or 15% to 105%, or 20% to 100%, or 30% to 95%, or 40% to 90%.

3. The black-bordered display glass according to claim 2, characterized in that, The black-edged display glass also includes a shielding layer disposed within the shielding area, located between the outer glass panel and the functional reflective layer, and the material of the shielding layer is selected from at least one of dark ink, opaque polymer film, and dimming film.

4. The black-bordered display glass according to claim 3, characterized in that, The shielding layer within the bottom shielding area is composed of a first shielding sub-layer and a second shielding sub-layer. The material of the first shielding sub-layer is dark ink, and the material of the second shielding sub-layer is an opaque polymer film or a dimming film.

5. The black-edged display glass according to claim 1, characterized in that, The thickness of the second adhesive layer is less than or equal to the thickness of the first adhesive layer, the thickness of the second adhesive layer is 0.1 mm to 0.5 mm, the material of the second adhesive layer is selected from at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, polyurethane, ionic polymer, OCA optical adhesive, SCA optical adhesive, and OCR optical transparent resin, and the adhesion between the second adhesive layer and the functional reflective layer is greater than or equal to 1 MPa. The visible light transmittance of the second adhesive layer is greater than or equal to 70%; or, the visible light transmittance of the second adhesive layer is less than or equal to 50%.

6. The black-bordered display glass according to claim 1, characterized in that, The black-edged display glass also includes a protective substrate, which includes a fifth surface and a sixth surface disposed opposite to each other. The protective substrate is located on the side of the second adhesive layer opposite to the fourth surface. The functional reflective layer is a mirror ink layer, a high-low refractive index stack, a metal stack, a holographic film, or a stacked polymer film.

7. The black-bordered display glass according to claim 6, characterized in that, The protective substrate is made of soda-lime glass, high-alumina glass, lithium aluminum glass, borosilicate glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate; the thickness of the protective substrate is 0.05 mm to 1.6 mm, or 0.1 mm to 1.0 mm.

8. The black-bordered display glass according to claim 6, characterized in that, The functional reflective layer is a mirror ink layer, a high-low refractive index stack, or a metal stack. The functional reflective layer is disposed on the fifth surface, and the visible light transmittance of the protective substrate is greater than or equal to 70%. Alternatively, the functional reflective layer is disposed on the sixth surface, and the visible light transmittance of the protective substrate is less than or equal to 50%.

9. The black-bordered display glass according to claim 6, characterized in that, The black-edged display glass further includes an anti-fog coating, an anti-fingerprint coating, an anti-glare film, an anti-reflective coating, an S-polarizing filter, or a first electric heating element. The anti-fog coating, the anti-fingerprint coating, the anti-glare film, the anti-reflective coating, or the S-polarizing filter are disposed on the sixth surface, and the first electric heating element is disposed on the fifth surface or the sixth surface.

10. The black-bordered display glass according to claim 6, characterized in that, The ratio between the thickness of the second adhesive layer and the thickness of the protective substrate is 0.3 to 4, and the ratio between the visible light transmittance of the second adhesive layer and the visible light transmittance of the protective substrate is less than or equal to 1.

11. The black-bordered display glass according to claim 6, characterized in that, The protective substrate has a wedge-shaped cross-sectional profile, and the wedge angle of the wedge-shaped cross-sectional profile is 0.05 mrad to 0.5 mrad.

12. The black-bordered display glass according to claim 6, characterized in that, The functional reflective layer is a holographic film or a laminated polymer film. The black-edge display glass also includes a third adhesive layer, which is connected to the functional reflective layer and located on the side of the functional reflective layer opposite to the second adhesive layer. The fifth surface is connected to the third adhesive layer and located on the side of the third adhesive layer opposite to the functional reflective layer.

13. The black-bordered display glass according to claim 12, characterized in that, The thickness of the third adhesive layer is 0.01 mm to 0.1 mm, the visible light transmittance of the third adhesive layer is greater than or equal to 80%, and the haze of the third adhesive layer is less than or equal to 1%. And / or, the third adhesive layer has a wedge-shaped cross-sectional profile, the wedge angle of which is 0.05 mrad to 0.5 mrad.

14. The black-bordered display glass according to claim 12, characterized in that, The material of the third adhesive layer is selected from at least one of polyvinyl butyral, ethylene-vinyl acetate copolymer, polyurethane, ionic polymer, OCA optical adhesive, SCA optical adhesive or OCR optical transparent resin; the adhesion force between the third adhesive layer and the protective substrate is greater than or equal to 1 MPa.

15. The black-edged display glass according to claim 12, characterized in that, The ratio between the thickness of the second adhesive layer and the thickness of the third adhesive layer is greater than or equal to 3, and the ratio between the visible light transmittance of the second adhesive layer and the visible light transmittance of the third adhesive layer is less than or equal to 1.

16. The black-bordered display glass according to claim 12, characterized in that, The sum of the thickness of the third adhesive layer and the thickness of the protective substrate is less than or equal to 1.38 mm; or, the sum of the thickness of the third adhesive layer and the thickness of the protective substrate is less than or equal to 1.1 mm; or, the sum of the thickness of the third adhesive layer and the thickness of the protective substrate is less than or equal to 0.9 mm.

17. The black-bordered display glass according to claim 1, characterized in that, The black-edged display glass also includes a heat insulation layer, which is selected from at least one of single silver nano-coating, double silver nano-coating, triple silver nano-coating, quadruple silver nano-coating, ITO nano-coating, FTO nano-coating, and infrared blocking micron coating. The total solar transmittance of the black-edged display glass having the heat insulation layer is less than or equal to 55%.

18. The black-bordered display glass according to claim 1, characterized in that, The black-bordered display glass also includes an electric heating element and at least two busbars. The busbars are electrically connected to the electric heating element. The electric heating element can be a single-silver electric heating coating, a double-silver electric heating coating, a triple-silver electric heating coating, a quadruple-silver electric heating coating, a penta-silver electric heating coating, a TCO electric heating coating, a metal wire, a printed silver paste wire, a nano-silver wire, a carbon fiber wire, a metal mesh, or a graphene heating element. The electric heating element enables the black-bordered display glass to have a power of at least 400 W / m. 2 The heating power density.

19. A black-border display system, characterized in that, The black border display system includes a projection device and a black border display glass as described in any one of claims 1-18, wherein the projection device is used to emit projection light with a wavelength of 380nm to 780nm, the projection light contains at least 80% P-polarized light, and the projection light is incident on the functional reflective layer at an incident angle of 65° to 75°.

20. A vehicle, characterized in that, The vehicle includes a vehicle body and a black-border display system as described in claim 19, wherein the black-border display glass is installed at an opening in the vehicle body and the projection device is installed inside the vehicle body.

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