Coated glass and vehicle

Abstract

The invention provides coated glass and a vehicle. The coated glass comprises a glass substrate and a coating layer arranged on at least one side of the glass substrate, the coated glass is provided with a shielding area formed by the coating layer, and the shielding area is at least arranged along the edge of the coated glass; the shielding area has visible light transmittance TL1, the visible light transmittance TL1 is smaller than or equal to 7%, the shielding area has ultraviolet light transmittance Tuv1 for ultraviolet light, and the ultraviolet light transmittance Tuv1 is smaller than or equal to 0.5%. The coating layer is arranged in the shielding area, so that the shielding area has lower visible light transmittance TL1 and lower ultraviolet light transmittance Tuv1, and the shielding function of an ink area in the related technology is met. Moreover, the coating layer is arranged on the glass substrate in a coating high-temperature sintering manner, so that the damage to the glass substrate due to the arrangement of an ink area in related technologies can be reduced, the impact resistance of the edge part of the glass substrate is improved, the probability of breakage of the glass substrate is reduced, and the structural strength of the coated glass is improved.

Description

Technical Field

[0001] The present application belongs to the field of glass technology, and specifically relates to coated glass and vehicles. Background Art

[0002] In vehicles, black ink is often screen-printed around the glass to mask the connection structure between the glass and the vehicle to achieve an aesthetically pleasing appearance. The ink printing process is mature and simple, and has good masking properties.

[0003] However, since the thickness of screen-printed ink is generally in the range of 5 to 20 microns, and the heat absorption coefficient and thermal expansion coefficient of ink and glass are quite different, the glass surface covered by ink will have a deformation trend different from that of the glass itself during heating and forming and subsequent annealing and cooling, which will lead to surface stress. Especially at the junction of ink and glass, it is easy to be superimposed with the edge stress of the glass itself during the forming process to produce a large edge tensile stress, which further leads to a decrease in the strength of the glass in the ink area and the probability of cracking. Summary of the invention

[0004] In view of this, the first aspect of the present application provides a coated glass, the coated glass comprising a glass substrate and a coating layer provided on at least one side of the glass substrate, the coated glass having a shielding area formed by the coating layer, the shielding area being provided at least along an edge of the coated glass;

[0005] The shielding area has a visible light transmittance TL1, and the visible light transmittance TL1 is ≤7%. The shielding area has an ultraviolet light transmittance Tuv1 for ultraviolet light, and the ultraviolet light transmittance Tuv1 is ≤0.5%.

[0006] Wherein, the visible light transmittance TL1≤6%, or TL1≤5%, or TL1≤4%, or TL1≤3%, or TL1≤2%, or TL1≤1%.

[0007] Wherein, the surface stress of the glass substrate is ≥24 MPa, or ≥35 MPa, or ≥45 MPa, or ≥55 MPa, or ≥69 MPa.

[0008] Wherein, the ultraviolet light transmittance Tuv1≤0.4%, or Tuv1≤0.3%, or Tuv1≤0.2%, or Tuv1≤0.1%, or Tuv1≤0.05%.

[0009] The glass substrate has an ultraviolet light transmittance Tuv2 for ultraviolet light, and the ultraviolet light transmittance Tuv2≤2%, or Tuv2≤1%, or Tuv2≤0.5%.

[0010] Wherein, the material of the glass substrate is soda-lime glass, borosilicate glass, aluminosilicate glass, polymethacrylate, or polycarbonate.

[0011] Wherein, the physical thickness of the glass substrate is 2.5 mm to 6 mm, or 3.0 mm to 5.5 mm, or 3.5 mm to 5 mm;

[0012] And / or, the glass substrate has a visible light transmittance TL2, and the visible light transmittance TL2 is 5% to 94%, or 10% to 90%, or 20% to 88%.

[0013] The glass substrate includes a middle area and a peripheral area arranged at the periphery of the middle area, and the coating layer covers the peripheral area; or the coating layer covers the middle area and the peripheral area.

[0014] The peripheral area includes a tensile stress concentration area connected to the edge of the glass substrate, the tensile stress concentration area is located in a size range of 0 to 50 mm in the extension direction from the edge of the coated glass to the center of the coated glass, and the coating layer covers the tensile stress concentration area.

[0015] The coated glass is applied to a vehicle, the vehicle includes a vehicle interior, the vehicle interior is arranged on the inner surface of the coated glass facing the interior of the vehicle, the vehicle interior is arranged in the peripheral area, a first distance D1 is provided between the vehicle interior and the edge of the glass substrate, a second distance D2 is provided between the end of the coating layer away from the edge of the glass substrate and the edge of the glass substrate, and the absolute value of the difference between the first distance D1 and the second distance D2 is 0 to 5 mm.

[0016] Wherein, the coated glass further comprises a low-emissivity layer which is arranged on the same side of the glass substrate as the coating layer.

[0017] Wherein, the emissivity of the low emissivity layer is e≤0.3, or e≤0.25, or e≤0.2.

[0018] Wherein, the orthographic projection of the low-emissivity layer on the glass substrate and the orthographic projection of the coating layer on the glass substrate at least partially overlap with each other;

[0019] Alternatively, there is a gap between the orthographic projection of the low-emissivity layer on the glass substrate and the orthographic projection of the coating layer on the glass substrate.

[0020] Wherein, the physical thickness of the coating layer is 60nm-500nm, or 70nm-400nm, or 70nm-350nm.

[0021] The coating layer includes at least two light absorbing layers, and the material of the light absorbing layer is selected from at least one of W, Ni, Cr, Ti, Nb, Mo, Si, and Zr.

[0022] Wherein, the coating layer also includes at least one dielectric layer, and the material of the dielectric layer is selected from at least one of Zn, Si, Sn, Ti, Nb, Zr, Hf, Mg, Ni, In, Al, Ga, Bi metal oxides and mixtures thereof, or selected from at least one of Si, Al, Zr, Ti, Y, Hf, Nb, Ta metal nitrides or oxynitrides and mixtures thereof.

[0023] Wherein, the medium layer is arranged between the two light absorbing layers;

[0024] And / or, the dielectric layer is disposed on a side of the light absorbing layer facing the glass substrate;

[0025] And / or, the dielectric layer is disposed on a side of the light absorbing layer away from the glass substrate.

[0026] Wherein, the refractive index of the medium layer disposed between the two light absorbing layers is ≥1.8 at the light with a wavelength of 550 nm.

[0027] Wherein, the ratio of the total physical thickness of the visible light absorption layer to the total physical thickness of the dielectric layer is 0.2 to 1.8, or 0.5 to 1.5.

[0028] A second aspect of the present application provides a vehicle, comprising a vehicle body, and the coated glass provided in the first aspect of the present application, wherein the coated glass is arranged on the vehicle body.

[0029] The coated glass and vehicle provided by the present application provide a low visible light transmittance TL1 and a low ultraviolet light transmittance Tuv1 in the shielding area by setting the coating layer in the shielding area, thereby satisfying the shielding function of the ink area in the related art. In addition, since the coating layer of the present application is set on the glass substrate by high-temperature sintering of the coating, the damage to the glass substrate caused by setting the ink area in the related art can be reduced, the impact resistance of the edge of the glass substrate can be improved, the probability of the glass substrate breaking can be reduced, and the structural strength of the coated glass can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0031] Figure 1 A schematic diagram of the structure of coated glass provided in one embodiment of the present application.

[0032] Figure 2A schematic structural diagram of coated glass provided in another embodiment of the present application.

[0033] Figure 3 A schematic structural diagram of coated glass provided in yet another embodiment of the present application.

[0034] Figure 4 A schematic diagram of the structure of a coating layer provided in one embodiment of the present application.

[0035] Explanation of reference numerals: coated glass 10 , glass substrate 11 , coating layer 20 , first dielectric layer 21 , first light absorbing layer 22 , high refractive index layer 23 , second light absorbing layer 24 , second dielectric layer 25 , first dielectric sublayer 251 , second dielectric sublayer 252 , low-emissivity layer 30 , ink layer 40 , functional component 50 . DETAILED DESCRIPTION

[0036] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0037] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0038] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0039] In this application, "first", "second", etc. are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0040] In this application, "one or several" refers to any one, any two or more of the listed items. Among them, "several" refers to any two or more of the listed items.

[0041] The value of x in the chemical formula: if it is clearly defined, it shall be within the defined range. If it is not clearly defined, it can be determined based on the deposition in a stoichiometric, substoichiometric or superstoichiometric manner in the magnetron sputtering process.

[0042] Refractive Index: The refractive index measured at a wavelength of 550 nm.

[0043] like Figure 1As shown, the present application provides a coated glass 10, the coated glass 10 comprises a glass substrate 11, and a coating layer 20 provided on at least one side of the glass substrate 11, the coated glass 10 has a shielding area formed by the coating layer 20, and the shielding area is provided at least along the edge of the coated glass 10. The shielding area has a visible light transmittance TL1, and the visible light transmittance TL1 is ≤7%, and the shielding area has an ultraviolet light transmittance Tuv1 for ultraviolet light, and the ultraviolet light transmittance Tuv1 is ≤0.5%.

[0044] The material of the glass substrate 11 is soda-lime glass, borosilicate glass, aluminosilicate glass, polymethacrylate, or polycarbonate. The physical thickness of the glass substrate 11 is 2.5 mm to 6 mm, and specifically, it can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, or 6 mm, etc. Preferably, the physical thickness of the glass substrate 11 is 3.0 mm to 5.5 mm, and more preferably, the physical thickness of the glass substrate 11 is 3.5 mm to 5.0 mm. The glass substrate 11 has a visible light transmittance TL2, which is 5% to 94%, and specifically, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 94%, etc. Preferably, the visible light transmittance TL2 is 10% to 90%, and more preferably, the visible light transmittance TL2 is 20% to 88%. The coated glass 10 has a light-transmitting area and a shielding area, and the visible light transmittance of the light-transmitting area is greater than or equal to 70%. The shielding area is arranged around the light-transmitting area, and the shielding area can play a shielding role and can also improve the overall aesthetics of the coated glass 10.

[0045] The surface stress of the glass substrate 11 is ≥24MPa, and specifically, for example, 24MPa, or 30MPa, or 35MPa, or 40MPa, or 45MPa, or 50MPa, or 55MPa, or 60MPa, or 65MPa, or 69MPa, etc. Preferably, the surface stress of the glass substrate 11 is ≥35MPa, more preferably, the surface stress of the glass substrate 11 is ≥45MPa, and further preferably, the surface stress of the glass substrate 11 is ≥55MPa, or ≥69MPa. For example, the glass substrate 11 may be a physically semi-tempered glass with a surface stress of ≥24MPa, or a physically tempered glass with a surface stress of ≥69MPa, or a chemically tempered glass with a surface stress of ≥300MPa.

[0046] The present application has found that the use of screen-printed black ink for shielding on the glass substrate 11 may reduce the strength of the glass substrate 11 by at least 40-50%. If the glass substrate 11 is coated with an infrared reflective coating and then sintered at high temperature, the strength of the glass substrate 11 may be reduced by 2%-5%. If black ink and an infrared reflective coating are stacked on the glass substrate 11, the strength of the substrate 11 may be reduced by at least 50-55%. It can be seen that in the related art, due to the large differences in the heat absorption coefficient and thermal expansion coefficient between the ink and the glass substrate, light distortion is easily formed at the interface between the ink and the glass substrate after the glass substrate is heated and formed, thereby weakening the stress of the glass substrate in the ink area and making the glass substrate in the ink area easy to crack. Therefore, ink is the main factor that reduces the strength of the glass substrate.

[0047] The shielding area of ​​the present application has a visible light transmittance TL1≤7%, which can be specifically exemplified by 7%, or 6%, or 5%, or 4%, or 3%, or 2%, or 1%, etc. Preferably, the shielding area has a visible light transmittance TL1≤6%, more preferably, the shielding area has a visible light transmittance TL1≤3%, and further preferably, the shielding area has a visible light transmittance TL1≤1%.

[0048] Wherein, the glass substrate 11 is a 2.1 mm transparent glass plate, the transparent glass plate has a visible light transmittance TL0, the visible light transmittance TL0 ≥ 88%, the TL1 and the TL0 satisfy: TL1 / TL0 < 0.08, specifically, 0.08, or 0.07, or 0.06, or 0.05, or 0.04, or 0.03, or 0.01, or 0.005, etc., preferably, TL1 / TL0 ≤ 0.05, more preferably TL1 / TL0 ≤ 0.03, further preferably, TL1 / TL0 ≤ 0.01, or TL1 / TL0 ≤ 0.005. The coating layer 20 of the present application can save the material used for the ink layer 40 in the related art to a certain extent, and replace the ink layer 40 in the related art to play a shielding role, which is conducive to reducing the manufacturing cost of the coated glass 10.

[0049] The shielding area of ​​the present application has an ultraviolet light transmittance Tuv1 for ultraviolet light, Tuv1≤0.4%, and specific examples include 0.4%, or 0.3%, or 0.2%, or 0.1%, or 0.05%, or 0.02%, etc. Preferably, the shielding area has an ultraviolet light transmittance Tuv1≤0.2%, and more preferably, the shielding area has an ultraviolet light transmittance Tuv1≤0.05%. By arranging a coating layer 20 in the shielding area, the shielding area can prevent more ultraviolet light from passing through, thereby improving the shielding effect of the shielding area.

[0050] Among them, the glass substrate 11 has an ultraviolet light transmittance Tuv2 for ultraviolet light, Tuv2≤2%, specifically, 2%, or 1.5%, or 1%, or 0.5%, etc. Preferably, the glass substrate 11 has an ultraviolet light transmittance Tuv2≤1% for ultraviolet light, and more preferably, the glass substrate 11 has an ultraviolet light transmittance Tuv2≤≤0.5%. The glass substrate 11 is a glass plate with anti-ultraviolet light function. The anti-ultraviolet glass substrate 11 cooperates with the coating layer 20 to further improve the function of the coated glass 10 to prevent ultraviolet light from passing through, and further improve the shielding effect of the shielding area.

[0051] Specifically, the mass percentage of each component in the glass substrate 11 is as follows: 1.5% to 2.2% total iron, where the total iron is the total iron content converted into Fe2O3; 0.8% to 2.0% CeO2; 0.5% to 1.5% TiO2; 0 to 350 ppm Cr2O3; 100 ppm to 300 ppm CoO; and 5 ppm to 100 ppm Se.

[0052] The ultraviolet light transmittance of the glass substrate 11 is improved by controlling the total iron content converted to Fe2O3 in the composition of the glass substrate 11 and adding specific contents of CeO2, TiO2, Cr2O3, CoO, and Se. The ultraviolet light transmittance can be reduced by limiting the total iron content converted to Fe2O3; CeO2 and TiO2 can improve the ultraviolet light absorption capacity of the glass substrate 11; Cr2O3 can produce a synergistic effect with other oxides in the glass substrate 11 to optimize the overall optical performance of the glass substrate 11; CoO is used to adjust the color of the glass substrate 11 and maintain the color consistency of the glass substrate 11. Se can make the glass substrate 11 have a higher refractive index, thereby improving the scattering and absorption capacity of ultraviolet light.

[0053] In summary, the present application sets a coating layer 20 on the shielding area of ​​the glass substrate 11, so that the shielding area has a lower visible light transmittance TL1 and a lower ultraviolet light transmittance Tuv1, which satisfies the shielding function of the ink area in the related art. In addition, since the coating layer 20 of the present application is set on the glass substrate 11 by high-temperature sintering of the coating, the damage to the glass substrate 11 caused by setting the ink area in the related art can be reduced, the impact resistance of the edge of the glass substrate 11 is improved, the probability of the glass substrate 11 breaking is reduced, and the structural strength of the coated glass 10 is improved.

[0054] The glass substrate 11 includes a middle area and a peripheral area disposed at the periphery of the middle area, and the coating layer 20 covers the peripheral area; or, the coating layer 20 covers the middle area and the peripheral area. For example, the coating layer 20 is disposed only in the peripheral area of ​​the glass substrate 11; for another example, the coating layer 20 is disposed in the middle area and the peripheral area of ​​the glass substrate 11, which can also be understood as the coating layer 20 covering the surface of at least one side of the glass substrate 11.

[0055] The peripheral area includes a tensile stress concentration area connected to the edge of the glass substrate 11, and the tensile stress concentration area is located in a size range of 0 to 50 mm in the extension direction from the edge of the coated glass 10 to the center of the coated glass 10. For example, the tensile stress concentration area can be located in a size range of 5 to 50 mm, 10 to 50 mm, 15 to 50 mm, 20 to 50 mm, 10 to 45 mm in the extension direction from the edge of the coated glass 10 to the center of the coated glass 10, and the coating layer 20 covers the tensile stress concentration area. The size range covered by the tensile stress concentration area can be specifically exemplified as 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, etc. The tensile stress concentration area refers to an area of ​​the glass substrate 11 that is easily broken by external impact. The coating layer 20 is arranged in the tensile stress concentration area to better protect the glass substrate 11, reduce the damage to the glass substrate 11 caused by arranging the ink layer 40 in the tensile stress concentration area in the related art, improve the impact resistance of the edge of the glass substrate 11, reduce the probability of the glass substrate 11 breaking, and improve the structural strength of the coated glass 10.

[0056] The coated glass 10 is applied to a vehicle, and the vehicle includes a vehicle interior part, and the vehicle interior part is arranged on the inner surface of the coated glass 10 facing the interior of the vehicle, and the vehicle interior part is arranged in the peripheral area, and there is a first distance D1 between the vehicle interior part and the edge of the glass substrate 11, and there is a second distance D2 between the end of the coating layer 20 away from the edge of the glass substrate 11 and the edge of the glass substrate 11, and the absolute value of the difference between the first distance D1 and the second distance D2 is 0 to 5 mm. The absolute value of the difference between D1 and D2 can be specifically exemplified as 1 mm, or 2 mm, or 3 mm, or 4 mm, or 5 mm, etc., to provide space for setting the installation deviation of the vehicle interior part, and the coating layer 20 can be used to shield the vehicle interior part. It should be noted that the inner surface of the coated glass 10 can also be understood as the surface of the glass substrate 11 provided with the coating layer 20.

[0057] like Figure 2As shown, in one embodiment, the coated glass 10 further includes a low-emissivity layer 30 disposed on the same side of the glass substrate 11 as the coating layer 20. The emissivity of the low-emissivity layer 30 is e≤0.3, and specifically, it can be 0.25, 0.2, 0.15, 0.1, etc. Preferably, the emissivity of the low-emissivity layer 30 is e≤0.25, and more preferably, the emissivity of the low-emissivity layer 30 is e≤0.2. On the coated glass 10, the orthographic projection of the low-emissivity layer 30 on the glass substrate 11 and the orthographic projection of the coating layer 20 on the glass substrate 11 at least partially overlap each other; or, there is a gap between the orthographic projection of the low-emissivity layer 30 on the glass substrate 11 and the orthographic projection of the coating layer 20 on the glass substrate 11. According to product requirements, the edges of the low-emissivity layer 30 and the coating layer 20 can be overlapped or separated from each other. By providing the low-emissivity layer 30 on the glass substrate 11 , the reflectivity of the coated glass 10 to near-infrared light can be increased while keeping the visible light transmittance substantially unchanged, thereby reducing the solar energy transmittance of the coated glass 10 .

[0058] like Figure 3 As shown, in another embodiment, the coated glass 10 further includes an ink layer 40 disposed on a side of the coating layer 20 away from the glass substrate 11 , and the ink layer 40 is used for installing or positioning a functional component 50 .

[0059] According to product requirements, a local ink layer 40 can be provided on the coating layer 20, and the peripheral area of ​​the glass substrate 11 can still retain a local ink layer 40, for example, the ink layer 40 is obtained by ceramic printing. Car body glue can be provided on the ink layer 40 to improve the bonding performance of this area. The ink layer 40 can also serve as an assembly positioning mark for the functional part 50, and the functional part 50 can be a pad, an edge strip, a bracket, etc.

[0060] There is no ink layer 40 in the shielding area; or, the ink layer 40 in the shielding area accounts for less than or equal to 10% of the entire shielding area. Specifically, for example, the ink layer 40 accounts for 10%, 8%, 6%, 4%, 2%, etc.

[0061] like Figure 4 As shown, the structure of the coating layer 20 is described in detail below. The coating layer 20 can be prepared by physical vapor deposition (PVD) or chemical vapor deposition (CVD), and is disposed on the glass substrate 11 by high-temperature sintering of the coating layer, which can reduce the damage to the glass substrate 11 caused by the ink area in the related art, improve the impact resistance of the edge of the coated glass 10, and reduce the probability of the coated glass 10 breaking.

[0062] The physical thickness of the coating layer 20 is 60nm to 500nm, and specifically, for example, 60nm, or 70nm, or 80nm, or 90nm, or 100nm, or 150nm, or 200nm, or 250nm, or 300nm, or 350nm, or 400nm, or 450nm, or 500nm, etc. Preferably, the physical thickness of the coating layer 20 is 70nm to 400nm, and more preferably, the physical thickness of the coating layer 20 is 70nm to 350nm. In the related art, compared with using an ink layer with a physical thickness of 5μm to 20μm as a shielding layer, the physical thickness of the coating layer 20 is reduced by one order of magnitude. During the molding process, the coating layer 20 with a nanometer-level thickness will hardly have a weakening effect on the glass surface, which is equivalent to improving the impact resistance of the edge of the coated glass 10, reducing the cracking of the coated glass 10, and improving the structural strength of the coated glass 10.

[0063] The coating layer 20 includes at least two light absorbing layers, and the material of the light absorbing layers is selected from at least one of W, Ni, Cr, Ti, Nb, Mo, Si, and Zr, and specifically includes NiCr, NiAl, NiSi, Cr, TiN, NbN, MoTi, etc. The light absorbing layer can also be understood as a visible light absorbing layer for absorbing visible light.

[0064] The coating layer 20 further includes at least one dielectric layer, the material of which is selected from at least one of Zn, Si, Sn, Ti, Nb, Zr, Hf, Mg, Ni, In, Al, Ga, Bi metal oxides and mixtures thereof, or selected from at least one of Si, Al, Zr, Ti, Y, Hf, Nb, Ta metal nitrides or oxynitrides and mixtures thereof. Specific examples include SiN, SiO x , ZnSnOx (zinc tin oxide)), TiOx (titanium oxide), SiNx (silicon nitride), AZO (aluminum-doped zinc oxide), ZrOx (zirconium oxide), NbOx (niobium oxide), etc. The dielectric layer may be a single-layer structure or a multi-layer structure, for example, including at least two dielectric sublayers. For example, the dielectric layer is composed of a first dielectric sublayer 251 and a second dielectric sublayer 252 stacked. Figure 1 As shown, the second dielectric layer 25 is composed of a first dielectric sub-layer 251 and a second dielectric sub-layer 252 which are stacked.

[0065] Specifically, the dielectric layer is disposed between the two light absorbing layers; and / or, the dielectric layer is disposed on a side of the light absorbing layer facing the glass substrate 11 ; and / or, the dielectric layer is disposed on a side of the light absorbing layer facing away from the glass substrate 11 .

[0066] Moreover, the dielectric layer disposed between the two light absorbing layers has a refractive index of ≥1.8 at a light with a wavelength of 550 nm. The dielectric layer disposed between the two light absorbing layers can also be understood as an intermediate dielectric layer, which has a high refractive index and can also be referred to as a high refractive index layer 23. The high refractive index layer 23 has a refractive index of ≥1.8 at a light with a wavelength of 550 nm, and specifically can be exemplified by 1.8, or 1.9, or 2.0, or 2.1, or 2.2, or 2.3, or 2.4, or 2.5, or 2.6, or 2.7, or 2.8, or 2.9, or 3.0, etc. Preferably, the high refractive index layer 23 has a refractive index of ≥2 at a light with a wavelength of 550 nm, more preferably, the high refractive index layer 23 has a refractive index of ≥2.3 at a light with a wavelength of 550 nm, and further preferably, the high refractive index layer 23 has a refractive index of ≥2.5, or ≥2.8, or ≥3 at a light with a wavelength of 550 nm.

[0067] like Figure 4 As shown, the coating layer 20 is composed of two light absorbing layers, a high refractive index layer 23, and two dielectric layers, for example, composed of "first dielectric layer 21 / first light absorbing layer 22 / high refractive index layer 23 / second light absorbing layer 24 / second dielectric layer 25". The high refractive index layer 23 can also be understood as an intermediate dielectric layer. The second dielectric layer 25 is composed of a first dielectric sublayer 251 and a second dielectric sublayer 252 stacked in layers. Optionally, the physical thickness of the first dielectric layer 21 is 20nm to 45nm, and the physical thickness of the second dielectric layer 25 is 3nm to 200nm. The physical thickness of the first light absorbing layer 22 is 10nm to 100nm, and the physical thickness of the second light absorbing layer 24 is 10nm to 100nm.

[0068] The ratio of the total physical thickness of the light absorbing layer to the total physical thickness of the dielectric layer is 0.2 to 1.8, and specifically, it can be 0.2, or 0.5, or 0.8, or 1.0, or 1.2, or 1.5, or 1.8, etc. Preferably, the ratio of the total physical thickness of the light absorbing layer to the total physical thickness of the dielectric layer is 0.5 to 1.5. By optimizing the film thickness of the coating layer 20, the coated glass 10 has a lower visible light transmittance TL1 and a lower ultraviolet light transmittance Tuv1, which meets the shielding function of the ink area in the relevant technology.

[0069] In the coating layer 20, the total physical thickness of the light absorbing layer refers to the sum of the physical thicknesses of all the light absorbing layers in the coating layer 20. The total physical thickness of the light absorbing layer is ≥10nm, which can be specifically exemplified by 10nm, or 15nm, or 20nm, or 25nm, or 30nm, or 35nm, or 40nm, or 50nm, or 60nm, or 70nm, or 80nm, etc. Preferably, the total physical thickness of the light absorbing layer is ≥20nm, more preferably, the total physical thickness of the light absorbing layer is ≥30nm, and further, the total physical thickness of the light absorbing layer is ≥50nm, or ≥80nm. The physical thickness of one of the light absorbing layers is ≥5nm, which can be specifically exemplified by 5nm, or 10nm, or 15nm, or 20nm, or 25nm, or 30nm, etc. Preferably, the physical thickness of one of the light absorbing layers is ≥10nm, and more preferably, the physical thickness of one of the light absorbing layers is ≥20nm.

[0070] The physical thickness of the dielectric layer closest to the glass substrate 11 in the coating layer 20 is 20nm to 45nm, and specifically, for example, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, etc. Preferably, the physical thickness of the dielectric layer closest to the glass substrate 11 in the coating layer 20 is 25nm to 45nm, and more preferably, the physical thickness of the dielectric layer closest to the glass substrate 11 in the coating layer 20 is 30nm to 40nm. Figure 4 As shown, the first dielectric layer 21 is the dielectric layer in the coating layer 20 that is closest to the glass substrate 11 , and the physical thickness of the first dielectric layer 21 is 20 nm to 45 nm.

[0071] The physical thickness of the dielectric layer in the coating layer 20 farthest from the glass substrate 11 is 3nm to 200nm, and specifically, for example, 3nm, 10nm, 50nm, 100nm, 150nm, 200nm, etc. Preferably, the physical thickness of the dielectric layer in the coating layer 20 farthest from the glass substrate 11 is 30nm to 150nm, and more preferably, the physical thickness of the dielectric layer in the coating layer 20 farthest from the glass substrate 11 is 50nm to 100nm. Figure 4 As shown, the second dielectric layer 25 is the dielectric layer in the coating layer 20 that is farthest from the glass substrate 11 , and the physical thickness of the second dielectric layer 25 is 3 nm to 200 nm.

[0072] The present application also provides a laminated glass, which includes a first glass plate, an adhesive layer, and a second glass plate, the second glass plate is the coated glass provided above in the present application, the coated layer is connected to the adhesive layer, the first glass plate has a first surface and a second surface, the second glass plate has a third surface and a fourth surface, the adhesive layer connects the second surface and the third surface, and the laminated glass has a shielding area formed by the coating layer, and the shielding area is at least arranged along the edge of the laminated glass.

[0073] Specifically, the first glass plate is used as the outer glass plate of the laminated glass, and the first glass plate has a first surface and a second surface, the first surface is away from the adhesive layer and in contact with the vehicle exterior environment, and the second surface is close to the adhesive layer; the second glass plate is used as the inner glass plate of the laminated glass, and the second glass plate has a third surface and a fourth surface, the third surface is close to the adhesive layer, and the fourth surface is away from the adhesive layer and in contact with the vehicle interior environment; the adhesive layer connects the second surface and the third surface. The coating layer is provided on at least one of the second surface, the third surface, and the fourth surface.

[0074] Wherein, the first glass plate is transparent glass or tinted glass, the thickness of the first glass plate is 0.7mm-4mm, and the visible light transmittance of the first glass plate is greater than or equal to 80%. The second glass plate is transparent glass or tinted glass, the thickness of the second glass plate is 0.7mm-4mm, and the visible light transmittance of the second glass plate is greater than or equal to 80%. The total iron content (in terms of Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, and further less than or equal to 0.01%, and the visible light transmittance of the transparent glass is 80%-95%; the total iron content (in terms of Fe2O3) of the tinted glass is 0.1% to 0.8%, preferably 0.1% to 0.5%, and the visible light transmittance of the tinted glass is 80%-90%. For example, the first glass plate can be a transparent glass with a thickness of 2.1mm and a visible light transmittance of 89%, and the second glass plate can be a green glass with a thickness of 1.6mm and a visible light transmittance of 83%, or a green glass with a thickness of 2.1mm and a visible light transmittance of 80%.

[0075] Wherein, the bonding layer is a transparent thermoplastic polymer film or a colored thermoplastic polymer film, and the thickness of the bonding layer is 0.38mm~2.28mm. For example, the thickness of the bonding layer can be but not limited to 0.38mm, or 0.76mm, or 1.14mm, or 1.52mm, or 1.9mm, or 2.28mm, or other values ​​between 0.38mm~2.28mm. 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 bonding layer 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 bonding layer can be but not limited to 80%, or 85%, or 90%, or 95%, etc. When the bonding layer 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 bonding layer can be, but is not limited to, 80%, 85%, or 90%. The colored thermoplastic polymer film can be a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film. Exemplarily, the bonding layer can be a single-layer structure or a multi-layer structure. The multi-layer structure can be exemplified by a double-layer structure, a three-layer structure, a four-layer structure, a five-layer structure, etc. The bonding layer can also have other functions, such as providing at least one colored area as a shadow band to reduce the interference of sunlight to 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 light isolation function, or at least one layer of the multi-layer structure has a higher plasticizer content to have a sound insulation function.

[0076] Optionally, a dimming film is provided between the first glass plate and the second glass plate, and the dimming film may 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 required, such as 10%, 20%, 30%, 50%, 70%, 80%, etc. For example: the visible light transmittance of the dimming film can be adjusted between 0% and 20%, between 0.5% and 50%, between 0% and 70%, etc. The dimming film can meet the requirements of visible light transmittance in multiple scenarios. For example, 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 displayed image and the displayed background. When no display is performed, the dimming film is in a transparent state (visible light transmittance is greater than or equal to 70%) to achieve transparency in a larger area of ​​the vehicle window glass. The dimming film is arranged in an adhesive layer. For example, the adhesive layer can be two thermoplastic polymer films, and the dimming film is sandwiched between the two thermoplastic polymer films.

[0077] The present application also provides a vehicle, comprising a vehicle body and the coated glass provided in the present application, wherein the coated glass is arranged on the vehicle body. When the coated glass is installed on the vehicle, it is preferably used as the front windshield of the vehicle. However, it is not limited thereto, and the coated glass can also be used as the rear windshield or side window glass, thereby providing more display scene applications for the vehicle.

[0078] In order to make the purpose and advantages of the present application clearer, the effects of the reflective element of the present application are further described in detail below in conjunction with specific embodiments.

[0079] In Examples 1-9, the coating layer is provided on a glass substrate for illustration. A transparent glass plate with a thickness of 2.1 mm is prepared, and the visible light transmittance of the transparent glass plate is 90%. Examples 1-9 are all transparent glass plate / medium layer SiN 30nm-32nm / light absorption layer NiCr 15nm-18nm / high refractive index layer SiN 75nm-78nm / light absorption layer NiCr 13nm-17nm / medium sublayer SiN 7nm-8nm / medium sublayer SiO2 18nm-20nm.

[0080] Table 1: Performance parameters of coated glass of Examples 1-9

[0081]

[0082]

[0083] As can be seen from Table 1, the coated glasses in Examples 1-9 all meet the requirements of visible light transmittance TL1≤2% and ultraviolet light transmittance Tuv1≤0.4%. It can be seen that by setting a coating layer on the glass substrate, the shielding area of ​​the glass substrate has a lower visible light transmittance TL1 and a lower ultraviolet light transmittance Tuv1, which meets the shielding function of the ink area in the related art. In addition, since the coating layer of the present application is set on the glass substrate by high-temperature sintering of the coating, the damage to the glass substrate caused by setting the ink area in the related art can be reduced, the impact resistance of the edge of the glass substrate can be improved, the probability of the glass substrate breaking can be reduced, and the structural strength of the coated glass can be improved.

[0084] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A coated glass, characterized in that: The coated glass comprises a glass substrate and a coating layer provided on at least one side of the glass substrate, the coated glass has a shielding area formed by the coating layer, and the shielding area is provided at least along an edge of the coated glass; The shielding area has a visible light transmittance TL1, and the visible light transmittance TL1 is ≤7%. The shielding area has an ultraviolet light transmittance Tuv1 for ultraviolet light, and the ultraviolet light transmittance Tuv1 is ≤0.5%.

2. The coated glass according to claim 1, characterized in that: The visible light transmittance TL1≤6%, or TL1≤5%, or TL1≤4%, or TL1≤3%, or TL1≤2%, or TL1≤1%.

3. The coated glass according to claim 1, characterized in that: The surface stress of the glass substrate is ≥24 MPa, or ≥35 MPa, or ≥45 MPa, or ≥55 MPa, or ≥69 MPa.

4. The coated glass according to claim 1, characterized in that: The ultraviolet light transmittance Tuv1≤0.4%, or Tuv1≤0.3%, or Tuv1≤0.2%, or Tuv1≤0.1%, or Tuv1≤0.05%.

5. The coated glass according to claim 1, characterized in that: The glass substrate has an ultraviolet light transmittance Tuv2 for ultraviolet light, and the ultraviolet light transmittance Tuv2≤2%, or Tuv2≤1%, or Tuv2≤0.5%.

6. The coated glass according to claim 1, characterized in that: The material of the glass substrate is soda-lime glass, borosilicate glass, aluminosilicate glass, polymethacrylate, or polycarbonate.

7. The coated glass according to claim 1, characterized in that: The physical thickness of the glass substrate is 2.5 mm to 6 mm, or 3.0 mm to 5.5 mm, or 3.5 mm to 5 mm; And / or, the glass substrate has a visible light transmittance TL2, and the visible light transmittance TL2 is 5% to 94%, or 10% to 90%, or 20% to 88%.

8. The coated glass according to claim 1, characterized in that: The glass substrate includes a middle area and a peripheral area arranged at the periphery of the middle area, and the coating layer covers the peripheral area; or the coating layer covers the middle area and the peripheral area.

9. The coated glass according to claim 8, characterized in that: The peripheral area includes a tensile stress concentration area connected to the edge of the glass substrate, the tensile stress concentration area is located in a size range of 0 to 50 mm in an extending direction from the edge of the coated glass to the center of the coated glass, and the coating layer covers the tensile stress concentration area.

10. The coated glass according to claim 8, characterized in that: The coated glass is applied to a vehicle, the vehicle includes a vehicle interior part, the vehicle interior part is arranged on the inner surface of the coated glass facing the interior of the vehicle, the vehicle interior part is arranged in the peripheral area, a first distance D1 is formed between the vehicle interior part and the edge of the glass substrate, a second distance D2 is formed between the end of the coating layer away from the edge of the glass substrate and the edge of the glass substrate, and the absolute value of the difference between the first distance D1 and the second distance D2 is 0 to 5 mm.

11. The coated glass according to claim 1, characterized in that: The coated glass further includes a low-emissivity layer disposed on the same side of the glass substrate as the coating layer.

12. The coated glass according to claim 11, characterized in that: The emissivity of the low emissivity layer is e≤0.3, or e≤0.25, or e≤0.

2.

13. The coated glass according to claim 11, characterized in that: The orthographic projection of the low-emissivity layer on the glass substrate and the orthographic projection of the coating layer on the glass substrate at least partially overlap with each other; Alternatively, there is a gap between the orthographic projection of the low-emissivity layer on the glass substrate and the orthographic projection of the coating layer on the glass substrate.

14. The coated glass according to any one of claims 1 to 13, characterized in that: The physical thickness of the coating layer is 60nm to 500nm, or 70nm to 400nm, or 70nm to 350nm.

15. The coated glass according to any one of claims 1 to 13, characterized in that: The coating layer includes at least two light absorbing layers, and the material of the light absorbing layers is selected from at least one of W, Ni, Cr, Ti, Nb, Mo, Si, and Zr.

16. The coated glass according to claim 15, characterized in that: The coating layer also includes at least one dielectric layer, and the material of the dielectric layer is selected from at least one of Zn, Si, Sn, Ti, Nb, Zr, Hf, Mg, Ni, In, Al, Ga, Bi metal oxides and mixtures thereof, or selected from at least one of Si, Al, Zr, Ti, Y, Hf, Nb, Ta metal nitrides or oxynitrides and mixtures thereof.

17. The coated glass according to claim 16, characterized in that: The medium layer is disposed between the two light absorbing layers; And / or, the dielectric layer is disposed on a side of the light absorbing layer facing the glass substrate; And / or, the dielectric layer is disposed on a side of the light absorbing layer away from the glass substrate.

18. The coated glass according to claim 16, characterized in that: The refractive index of the medium layer disposed between the two light absorbing layers is ≥1.8 at a light with a wavelength of 550 nm.

19. The coated glass according to claim 16, characterized in that: The ratio of the total physical thickness of the visible light absorption layer to the total physical thickness of the dielectric layer is 0.2 to 1.8, or 0.5 to 1.

5.

20. A vehicle, characterized in that: The vehicle comprises a vehicle body, and the coated glass according to any one of claims 1 to 19, wherein the coated glass is arranged on the vehicle body.

Images