Coated glass and vehicle

Abstract

The invention provides coated glass and a vehicle. The coated glass comprises a glass substrate and a coating structure arranged on the glass substrate, the coating structure comprises at least two functional layers, the functional layers are SnMOx doped layers, M is a doped element, the refractive index of the functional layers is 2.02-2.16, and the extinction coefficient k of the functional layers is 0.001-0.005. The SnMOx doped layer is adopted as the functional layer of the coating structure, and the refractive index and the extinction coefficient of the functional layer are limited, so that the coated glass has relatively low radiance, a better effect of being hot in winter and cool in summer is achieved, the coated glass also has relatively low visible light reflectivity and more neutral front color and side color, and the service life of the coated glass is prolonged. Therefore, the visual comfort of a user is improved, the attractiveness of the vehicle is improved, the use experience of the user is improved, and the manufacturing cost of the coating film is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of coated glass, and particularly relates to coated glass and a vehicle. BACKGROUND

[0002] With the increasing requirements of users on vehicles, it is more inclined to obtain greater interior space and reduce the weight and manufacturing cost of the vehicle by canceling the sunroof sunshade curtain. For the traditional sunroof glass without the sunshade curtain, the light entering the vehicle will become too much, which not only affects the visual sensory experience of the passengers, but also increases the temperature in the vehicle and affects the thermal comfort in the vehicle.

[0003] A common solution at present is to coat a transparent conductive oxide layer (TCO layer) on the surface of the glass, such as a fluorine-doped tin oxide (FTO) coating layer coated on the surface of the glass produced by the float method by using the chemical vapor deposition (CVD) method, which is used as the inner surface substrate of the sunroof glass, and the FTO layer is located on the contact surface between the glass and the air in the vehicle. In order to make the glass obtain a lower emissivity value, it is usually necessary to increase the thickness of the transparent conductive oxide layer as much as possible. However, with the increase of the thickness of the transparent conductive oxide layer, the reflectivity of visible light also increases, and the color and other optical indicators also change, and even deviate from the neutral color. For the automotive glass, higher reflectivity and darker color will cause discomfort of the passengers and affect the aesthetics of the vehicle. SUMMARY

[0004] In view of this, the first aspect of the application provides a coated glass, which comprises a glass substrate and a coated structure arranged on the glass substrate, the coated structure comprises at least two functional layers, the functional layer is a SnMOx doped layer, M is a doping element, the refractive index of the functional layer is 2.02-2.16, and the extinction coefficient k of the functional layer is 0.001-0.005.

[0005] In the SnMOx doped layer, the proportion of Sn and O is greater than or equal to 98wt%; The proportion of Sn in the SnMOx doped layer is 75wt%-80wt%, and the proportion of O in the SnMOx doped layer is 20wt%-25wt%.

[0006] In the SnMOx doped layer, the proportion of Sn and O is greater than or equal to 98wt%; The proportion of the main doping element M1 in the SnMOx doped layer is 1.5wt%-2wt%.

[0007] In the SnMOx doped layer, the proportion of Sn and O is greater than or equal to 98wt%; The proportion of the secondary doping element M2 in the SnMOx doping layer is ≤0.5wt%.

[0008] The coating structure comprises a plurality of functional layers, i.e., a first functional layer and a second functional layer, wherein the first functional layer is closer to the glass substrate than the second functional layer. The thickness of the first functional layer is 10nm-200nm, and the thickness of the second functional layer is 50nm-250nm.

[0009] The coating structure comprises a plurality of functional layers, i.e., a first functional layer, a second functional layer, and a third functional layer, wherein the first functional layer is closer to the glass substrate than the second functional layer, and the second functional layer is closer to the glass substrate than the third functional layer. The thickness of the first functional layer is 10nm-200nm, the thickness of the second functional layer is 50nm-250nm, and the thickness of the third functional layer is 150nm-250nm.

[0010] The coating structure comprises a plurality of functional layers, i.e., a first functional layer, a second functional layer, a third functional layer, and a fourth functional layer, wherein the first functional layer is closer to the glass substrate than the second functional layer, the second functional layer is closer to the glass substrate than the third functional layer, and the third functional layer is closer to the glass substrate than the fourth functional layer. The thickness of the first functional layer is 10nm-200nm, the thickness of the second functional layer is 50nm-250nm, the thickness of the third functional layer is 150nm-250nm, and the thickness of the fourth functional layer is 20nm-250nm.

[0011] The coating structure comprises at least one intermediate layer, which is arranged between two functional layers. The material of the intermediate layer is selected from oxides, nitrides, or oxynitrides of at least one element in Si, Zn, Mg, Sn, Ti, Nb, Zr, In, and Al. The thickness of the intermediate layer is 10nm-100nm.

[0012] The coating structure further comprises an innermost adhesion layer, which contacts the surface of the glass substrate, and the functional layer is arranged on the side of the innermost adhesion layer away from the glass substrate.

[0013] The innermost adhesion layer comprises a high-refractive-index layer, and the refractive index of the high-refractive-index layer is 1.95-2.13. The material of the high refractive index layer is selected from oxides of at least one element selected from Zn, Sn, Nb, Ti, Cr, Ta and Zr, or one or more of nitrides and oxynitrides including at least one element selected from Si, Zr and Al. And / or, the thickness of the high refractive index layer is 25nm~55nm.

[0014] The innermost attachment layer further includes at least one stacked structure, each of the stacked structures including a high refractive index layer and a low refractive index layer, wherein the high refractive index layer is closer to the glass substrate than the low refractive index layer, and the refractive index of the low refractive index layer is 1.40~1.80; The low-refractive-index material is selected from oxides of at least one element selected from Si, Al and B, or fluorides including at least one element selected from Mg, Al and Ba. And / or, the thickness of the low refractive index layer is 0~45nm.

[0015] The coating structure further includes an outermost protective layer, which is the film layer in the coating structure that is furthest from the glass substrate. The material of the outermost protective layer is selected from oxides of at least one element selected from Si, Al and B, or fluorides including at least one element selected from Mg, Al and Ba. And / or, the thickness of the outermost protective layer is 40nm~100nm; And / or, the refractive index of the outermost protective layer is 1.40~1.80.

[0016] The coating structure includes at least one intermediate layer, which is disposed between the two functional layers; The coating structure further includes a dielectric layer, which is disposed between the innermost adhesion layer and the functional layer, and / or between the functional layer and the intermediate layer, and / or between the functional layer and the outermost protective layer; The material of the dielectric layer is selected from at least one of AZO, Ti alloy, NbOx, TiOx, NiCr, NiCrOx, ZnAlOx, ZnOx, and SnOx, wherein x in SnOx satisfies: 1 < x ≤ 3; And / or, the thickness of the dielectric layer is 0~40nm.

[0017] The visible light reflectance R of the coated glass is ≤6%.

[0018] The emissivity E of the coated glass is ≤0.15.

[0019] Wherein, for light incident from one side of the coated structure and with an incident angle of 0°-60°, the coated glass has a reflection Lab value satisfying: -3≤a≤1, -3≤b≤1.

[0020] Wherein, for light incident from one side of the coated structure and with an incident angle a1 satisfying 0 for light incident from one side of the coated structure and with an incident angle a2 satisfying 10° Wherein, the absolute value of the difference between a1 and a2 is ≤3, and the absolute value of the difference between b1 and b2 is ≤4.

[0021] Wherein, the glass substrate is a single piece of glass, and the coated structure is arranged on one side of the single piece of glass. Alternatively, the glass substrate comprises a first glass plate, an intermediate bonding layer and a second glass plate which are sequentially stacked, and the coated structure is arranged on a surface of the second glass plate away from the intermediate bonding layer.

[0022] Wherein, the glass substrate comprises a first glass plate, an intermediate bonding layer and a second glass plate which are sequentially stacked, and the coated structure is arranged on a surface of the second glass plate away from the first glass plate. The visible light transmittance of the coated glass is ≤10%.

[0023] The second aspect of the present application provides a vehicle, which comprises a vehicle body and the coated glass provided by the first aspect of the present application, and the coated glass is arranged on the vehicle body.

[0024] The coated glass, the preparation method thereof and the vehicle provided by the present application can have a lower emissivity by adopting a SnMOx doped layer as a functional layer of the coated structure and limiting the refractive index and extinction coefficient of the functional layer, so as to achieve a better winter heating and summer cooling effect, and also make the coated glass have a lower visible light reflectance, more neutral front color and side color, thereby improving the visual comfort of users, improving the aesthetics of the vehicle, improving the use experience of users, and also reducing the cost of coating manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be described below.

[0026] Figure 1 The structure schematic diagram of the coated glass provided by an embodiment of the present application.

[0027] Figure 2 The structure schematic diagram of the coated glass provided by another embodiment of the present application.

[0028] Figure 3 The structure diagram of the coated glass according to another embodiment of the present application is shown.

[0029] Label explanation: coated glass 1, glass substrate 10, first glass plate 11, intermediate bonding layer 12, second glass plate 13, first functional layer 21, second functional layer 22, third functional layer 23, fourth functional layer 24, first intermediate layer 31, second intermediate layer 32, third intermediate layer 33, innermost adhesion layer 40, high refractive index layer 41, low refractive index layer 42, outermost protective layer 50, first medium layer 61, second medium layer 62, third medium layer 63, fourth medium layer 64, fifth medium layer 65, sixth medium layer 66, seventh medium layer 67, eighth medium layer 68. DETAILED DESCRIPTION

[0030] The following is the preferred embodiment of the present application, it should be pointed out that for those skilled in the art, without departing from the principles of the present application, can make several improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

[0031] Unless otherwise stated or contradictory, the terms or phrases used in the present application have the following meanings: In the present application, "at least one" refers to any one, any two or more of the listed items.

[0032] The value of x in the chemical formula: has a clear definition, in the defined range. If not defined, it can be determined according to the stoichiometric, sub-stoichiometric or super-stoichiometric deposition in the magnetron sputtering process.

[0033] Refractive index: the refractive index measured at a wavelength of 550 nm.

[0034] Before introducing the technical solutions of the present application, the technical problems in the related art will be introduced in detail.

[0035] First, for the glass with high emissivity, not only the heat preservation performance is poor, the energy saving performance is poor, but also in the low-e glass field, it belongs to "false Low-e", which does not meet the requirements of the national standard of building Low-e glass.

[0036] Second, for the sunroof glass in the vehicle, not only the reflectivity and the front color need to be considered, but also the side color needs to be considered.

[0037] Third, due to the scarcity of In in ITO target material and the demand rigidity in the field of semiconductor, photovoltaic and other fields, the cost of ITO target material is high, and the manufacturing cost of silver-free Low-e is high.

[0038] Among them, ITO is applied as a transparent conductive oxide in various TCO conductive layers, and the proportion of ITO is generally InO2; SnO2=90:10. Indium is relatively small in the distribution of the earth's crust, and it is very scattered, and its rich ore has not been found, so it is listed as a rare metal. The content of In in ITO is high, which causes the cost of ITO target material to be too high, and a low-cost target material is urgently needed to replace ITO.

[0039] In view of this, in order to solve the above problems, please refer to Figures 1-3 The embodiment provides a coated glass 1, which comprises a glass substrate 10 and a coated structure arranged on the glass substrate 10, wherein the coated structure comprises at least two functional layers, the functional layers are SnMOx doped layers, M is a doping element, the refractive index of the functional layers is 2.02-2.16, and the extinction coefficient k of the functional layers is 0.001-0.005.

[0040] The coated structure is arranged on the glass substrate 10. In an embodiment, the glass substrate 10 is a single piece of glass, and the coated structure is arranged on one side of the single piece of glass. Alternatively, the single piece of glass is selected from at least one of soda-lime glass, high-aluminum glass, lithium-aluminum glass or borosilicate glass. Alternatively, the single piece of glass is transparent glass or colored glass.

[0041] In another embodiment, the glass substrate 10 comprises a first glass plate 11, an intermediate bonding layer 12 and a second glass plate 13 which are sequentially stacked, and the coated structure is arranged on a surface of the second glass plate 13 away from the intermediate bonding layer 12. At this time, the coated glass 1 can also be understood as laminated glass.

[0042] Specifically, the first glass plate 11 serves as an outer glass plate of the laminated glass, the first glass plate 11 has a first surface and a second surface, the first surface is away from the intermediate bonding layer 12 and contacts an environment outside a vehicle, and the second surface is close to the intermediate bonding layer 12; the second glass plate 13 serves as an inner glass plate of the laminated glass, the second glass plate 13 has a third surface and a fourth surface, the third surface is close to the intermediate bonding layer 12, the fourth surface is away from the intermediate bonding layer 12 and contacts an environment inside the vehicle, and the coated structure is arranged on the fourth surface.

[0043] The first glass plate 11 and the second glass plate 13 are transparent glass or colored glass, the thicknesses of the first glass plate 11 and the second glass plate 13 are 0.7 mm-4 mm respectively, and the visible light transmittances of the first glass plate 11 and the second glass plate 13 are greater than or equal to 80% respectively. For example, the first glass plate 11 can be transparent glass with a thickness of 2.1 mm and a visible light transmittance of 89%, and the second glass plate 13 can be green glass with a thickness of 1.6 mm and a visible light transmittance of 83% or green glass with a thickness of 2.1 mm and a visible light transmittance of 80%.

[0044] The intermediate bonding layer 12 is a transparent bonding layer or a colored bonding layer. The intermediate bonding layer 12 is a thermoplastic polymer film, and the thickness of the intermediate bonding layer 12 is 0.38 mm to 2.28 mm, and can be exemplified by 0.38 mm, or 0.76 mm, or 1.14 mm, or 1.52 mm, or 1.9 mm, or 2.28 mm, etc. The visible light transmittance of the intermediate bonding layer 12 is greater than or equal to 85%, and can be exemplified by 85%, or 90%, or 95%, etc. The haze of the intermediate bonding layer 12 is less than or equal to 1%, and can be exemplified by 1%, or 0.8%, or 0.6%, or 0.4%, etc. 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). The colored thermoplastic polymer film can be selected from a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film.

[0045] Exemplarily, the intermediate bonding layer 12 can be a single-layer structure or a multi-layer structure, and 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 intermediate bonding layer 12 can also have other functions, such as setting 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 the content of plasticizer of at least one layer of the multi-layer structure being higher to have a sound insulation function.

[0046] Further, the visible light transmittance of the coated glass 1 is ≤10%, and can be exemplified by 10%, or 9%, or 8%, or 7%, or 6%, or 5%, or 4%, or 3%, or 2%, or 1%, etc.

[0047] Especially when the coated glass 1 is used as the sunroof glass of a vehicle, by using the intermediate bonding layer 12 with low visible light transmittance or using a light-adjusting film, the visible light transmittance of the coated glass 1 is ≤10%, which replaces the sunshade curtain in the related art, so as to obtain a larger interior space, reduce the weight and manufacturing cost of the vehicle, and improve the user experience.

[0048] The coated glass 1 can be independently used as the window glass of a vehicle, or can be made into laminated glass and then used as the window glass of a vehicle. Alternatively, the coated glass 1 can be used as the sunroof glass, the front windshield, the rear windshield, the side window glass, the corner window glass, etc. of a vehicle.

[0049] The functional layer is used for reflecting infrared light and reducing the radiation rate in the vehicle. Optionally, the number of the functional layers is 2-4, which can be specifically exemplified as 2, or 3, or 4. The functional layer is a SnMOx doped layer, and M is a doping element. The refractive index of the functional layer is 2.02-2.16, which can be specifically exemplified as 2.02, or 2.03, or 2.04, or 2.05, or 2.06, or 2.07, or 2.08, or 2.09, or 2.10, or 2.11, or 2.12, or 2.13, or 2.14, or 2.15, or 2.16, etc. Preferably, the refractive index of the functional layer is 2.05-2.16. Further preferably, the refractive index of the functional layer is 2.05-2.10.

[0050] The extinction coefficient k of the functional layer is 0.001-0.005, which can be specifically exemplified as 0.001, or 0.0015, or 0.002, or 0.0025, or 0.003, or 0.0035, or 0.004, or 0.0045, or 0.005, etc. Preferably, the extinction coefficient k of the functional layer is 0.002-0.005. Further preferably, the extinction coefficient k of the functional layer is 0.002-0.004.

[0051] Specifically, the proportion of Sn and O in the SnMOx doped layer is ≥98wt%, which can be specifically exemplified as 98wt%, or 98.1wt%, or 98.2wt%, or 98.3wt%, or 98.4wt%, or 98.5wt%, or 98.6wt%, or 98.7wt%, or 98.8wt%, or 98.9wt%, or 99wt%, etc.

[0052] Further, the proportion of Sn in the SnMOx doped layer is 75wt%-80wt%, and the proportion of O in the SnMOx doped layer is 20wt%-25wt%.

[0053] The proportion of Sn in the SnMOx doped layer can be specifically exemplified as 75wt%, or 76wt%, or 77wt%, or 78wt%, or 79wt%, or 80wt%, etc. The proportion of O in the SnMOx doped layer can be specifically exemplified as 20wt%, or 21wt%, or 22wt%, or 23wt%, or 24wt%, or 25wt%, etc.

[0054] Preferably, the proportion of Sn in the SnMOx doped layer is 76.8wt%, and the proportion of O in the SnMOx doped layer is 21.2wt%.

[0055] In an embodiment, the doping element M includes a main doping element M1, and the main doping element M1 is Nb and Ta.

[0056] The proportion of the main doping element M1 in the SnMOx doped layer is 1.5wt%-2wt%, which can be exemplified as 1.5wt%, or 1.6wt%, or 1.7wt%, or 1.8wt%, or 1.9wt%, or 2wt%, etc.

[0057] Preferably, in the SnMOx doped layer, the proportion of each element is Sn:O:Nb:Ta=76.8wt%:21.2wt%:0.5wt%-1.0wt%:1.0wt%-1.5wt%.

[0058] By doping Nb and Ta with different valences, the defects of the functional layer can be inhibited, the electrons can be increased, and the resistance can be reduced. However, if the doping amount of Nb is too large, the lattice will be affected, the resistance will be increased; if the doping amount of Ta is too large, the defects will be increased, the electrons will be reduced, and the resistance will be increased. If the doping amount of Nb and Ta is too small, the effect of inhibiting the defects of the functional layer, increasing the electrons, and reducing the resistance will not be achieved.

[0059] Further, the doping element M includes a secondary doping element M2, and the secondary doping element M2 is selected from at least one of Ti, Na, Zr, Sb, In, Hf, Mg, Ca, Al, Ga, K.

[0060] The proportion of the secondary doping element M2 in the SnMOx doped layer is ≤0.5wt%, which can be exemplified as 0.5wt%, or 0.45wt%, or 0.4wt%, or 0.35wt%, or 0.3wt%, or 0.25wt%, or 0.2wt%, or 0.15wt%, or 0.1wt%, or 0.05wt%, etc.

[0061] By increasing the density of Ti and Ga, or doping Ti and Ga with different valences, the electrons can be increased, and the resistance can be reduced. However, if the doping amount of Ti is too large, the lattice will be affected, the oxygen vacancies will be reduced, and the resistance will be increased; if the doping amount of Ga is too large, the lattice will be affected, and the resistance will be increased. If the doping amount of Ti and Ga is too small, the effect of increasing the electrons and reducing the resistance will not be achieved.

[0062] By doping Na, Sb, Hf, Mg, Ca, Al, K with different valences, the electrons can be increased, and the resistance can be reduced. However, if the doping amount of Na, Sb, Hf, Mg, Ca, Al, K is too large, the lattice will be affected, and the resistance will be increased. If the doping amount of Na, Sb, Hf, Mg, Ca, Al, K is too small, the effect of increasing the electrons and reducing the resistance will not be achieved.

[0063] By increasing the density of In or adding In high-conductivity material, the conductivity of the functional layer can be increased. However, if the doping amount of In is too large, the cost will be increased.

[0064] Specifically, the visible light reflectance R of the coated glass 1 is ≤6%, specifically, 6%, or 5.5%, or 5%, or 4.5%, or 4%, or 3.5%, or 3%, or 2.5%, or 2%, or 1.5%, or 1%, or 0.5%, etc. Preferably, the visible light reflectance R of the coated glass 1 is ≤4%. Further preferably, the visible light reflectance R of the coated glass 1 is ≤5%.

[0065] The emissivity E of the coated glass 1 is ≤0.15, specifically, 0.15, or 0.14, or 0.13, or 0.12, or 0.11, or 0.10, or 0.09, or 0.08, or 0.07, or 0.06, or 0.05, or 0.04, or 0.03, or 0.02, or 0.01, etc. Preferably, the emissivity E of the coated glass 1 is ≤0.10. Further preferably, the emissivity E of the coated glass 1 is ≤0.05.

[0066] For light rays incident from the side of the coated structure and having an incident angle of 0°-60°, the reflective Lab value of the coated glass 1 satisfies: -3≤a≤1, -3≤b≤1.

[0067] The reflective Lab value is the Lab value obtained by the color feature of the reflected light from the surface of the coated glass 1. The a value of the reflective Lab value is specifically, -3, or -2.5, or -2, or -1.5, or -1, or -0.5, or 0, or 0.5, or 1, etc. Preferably, for light rays incident from the side of the coated structure and having an incident angle of 0°-60°, the reflective Lab value of the coated glass 1 satisfies: -2≤a≤1. Further preferably, for light rays incident from the side of the coated structure and having an incident angle of 0°-60°, the reflective Lab value of the coated glass 1 satisfies: -1≤a≤1.

[0068] The b value of the reflective Lab value is specifically, -3, or -2.5, or -2, or -1.5, or -1, or -0.5, or 0, or 0.5, or 1, etc. Preferably, for light rays incident from the side of the coated structure and having an incident angle of 0°-60°, the reflective Lab value of the coated glass 1 satisfies: -2≤b≤1. Further preferably, for light rays incident from the side of the coated structure and having an incident angle of 0°-60°, the reflective Lab value of the coated glass 1 satisfies: -1≤b≤1.

[0069] Further, for light rays incident from the side of the coated structure and having an incident angle a1 satisfying 0

[0070] For light rays incident from one side of the coated structure at an incident angle α2 satisfying 10°<α2≤60°, the coated glass 1 has reflectance Lab2 values: a2 and b2. The reflectance Lab2 values ​​reflect the side color of the coated glass 1.

[0071] Where the absolute value of the difference between a1 and a2 is ≤3, and the absolute value of the difference between b1 and b2 is ≤4.

[0072] The absolute value of the difference between a1 and a2 can be 3, 2.5, 2, 1.5, 1, 0.5, or 0, etc. Preferably, the absolute value of the difference between a1 and a2 is ≤2. More preferably, the absolute value of the difference between a1 and a2 is ≤1.

[0073] The absolute value of the difference between b1 and b2 can be exemplified by, for example, 4, 3.5, 3, 2.5, 2, 1.5, 1, 0.5, or 0. Preferably, the absolute value of the difference between b1 and b2 is ≤3. More preferably, the absolute value of the difference between b1 and b2 is ≤2.

[0074] In summary, by employing a SnMOx doped layer as the functional layer of the coating structure and limiting the refractive index and extinction coefficient of the functional layer, this embodiment enables the coated glass 1 to have a lower emissivity, achieving better winter heat and summer coolness effects. It also enables the coated glass 1 to have a lower visible light reflectivity, more neutral front and side colors, thereby improving the user's visual comfort, enhancing the vehicle's aesthetics, improving the user's experience, and reducing the cost of coating manufacturing.

[0075] Typical ITO skylights use a high-low refractive index laminated anti-reflective structure. However, to reduce the E value, the ITO thickness must be increased, which weakens the anti-reflective effect. At the same time, if the anti-reflective effect is pursued too much, the side color of the high-low refractive index laminated structure cannot be guaranteed.

[0076] This application uses a SnMOx doped layer as a functional layer and designs an intermediate layer, an innermost attachment layer 40, an outermost protective layer 50, and a dielectric layer to work together. By changing the film structure, it reduces the emissivity E value while maintaining a low reflectivity, and also takes into account the front and angular colors of the coated glass 1, so that the product can be adapted to the application scenarios of skylight glass.

[0077] In one implementation, such as Figure 1 As shown, the coating structure includes multiple functional layers: a first functional layer 21 and a second functional layer 22, wherein the first functional layer 21 is closer to the glass substrate 10 than the second functional layer 22.

[0078] The thickness of the first functional layer 21 is 10nm~200nm, and the thickness of the second functional layer 22 is 50nm~250nm.

[0079] The coated glass 1 is composed of a glass substrate 10, a first functional layer 21, and a second functional layer 22. Optionally, the first functional layer 21 and the second functional layer 22 have the same material parameters. These material parameters include the proportions of Sn and O in the SnMOx doped layer, the proportion of the primary dopant M1 in the SnMOx doped layer, the type of the secondary dopant M2, and the proportion of the secondary dopant M2 in the SnMOx doped layer. For example, in the first functional layer 21 and the second functional layer 22, the proportions of Sn and O in the SnMOx doped layer are the same, and / or the proportions of the primary dopant M1 in the SnMOx doped layer are the same, and / or the type of the secondary dopant M2 is the same, and / or the proportion of the secondary dopant M2 in the SnMOx doped layer is the same.

[0080] Optionally, at least one material parameter of the first functional layer 21 and the second functional layer 22 may be different. For example, in the first functional layer 21 and the second functional layer 22, the proportions of Sn and O in the SnMOx doped layer may be different, and / or the proportions of the main dopant element M1 in the SnMOx doped layer may be different, and / or the types of secondary dopant elements M2 may be different, and / or the proportions of secondary dopant elements M2 in the SnMOx doped layer may be different.

[0081] The thickness of the first functional layer 21 is 10nm to 200nm, specifically, for example, 10nm, 25nm, 50nm, 100nm, 120nm, 140nm, 160nm, 180nm, or 200nm. Preferably, the thickness of the first functional layer 21 is 50nm to 200nm. More preferably, the thickness of the first functional layer 21 is 50nm to 150nm.

[0082] The thickness of the second functional layer 22 is 50nm to 250nm, specifically, for example, 50nm, 75nm, 100nm, 120nm, 140nm, 160nm, 180nm, 200nm, 225nm, or 250nm. Preferably, the thickness of the second functional layer 22 is 100nm to 250nm. More preferably, the thickness of the second functional layer 22 is 100nm to 200nm.

[0083] In another embodiment, such as Figure 2 As shown, the coating structure includes multiple functional layers: a first functional layer 21, a second functional layer 22, and a third functional layer 23. The first functional layer 21 is closer to the glass substrate 10 than the second functional layer 22, and the second functional layer 22 is closer to the glass substrate 10 than the third functional layer 23.

[0084] The thickness of the first functional layer 21 is 10nm~200nm, the thickness of the second functional layer 22 is 50nm~250nm, and the thickness of the third functional layer 23 is 150nm~250nm.

[0085] The coated glass 1 is composed of "glass substrate 10 / first functional layer 21 / second functional layer 22 / third functional layer 23". Optionally, at least one material parameter of the first functional layer 21, the second functional layer 22, and the third functional layer 23 is the same. Optionally, at least one material parameter of the first functional layer 21, the second functional layer 22, and the third functional layer 23 is different.

[0086] The thickness of the third functional layer 23 is 150nm to 250nm, specifically, for example, 150nm, 160nm, 170nm, 180nm, 190nm, 200nm, 210nm, 220nm, 230nm, 240nm, or 250nm. Preferably, the thickness of the third functional layer 23 is 160nm to 240nm. More preferably, the thickness of the third functional layer 23 is 180nm to 220nm.

[0087] In yet another implementation, such as Figure 3 As shown, the coating structure includes multiple functional layers: a first functional layer 21, a second functional layer 22, a third functional layer 23, and a fourth functional layer 24. The first functional layer 21 is closer to the glass substrate 10 than the second functional layer 22, the second functional layer 22 is closer to the glass substrate 10 than the third functional layer 23, and the third functional layer 23 is closer to the glass substrate 10 than the fourth functional layer 24.

[0088] The thickness of the first functional layer 21 is 10nm~200nm, the thickness of the second functional layer 22 is 50nm~250nm, the thickness of the third functional layer 23 is 150nm~250nm, and the thickness of the fourth functional layer 24 is 20nm~250nm.

[0089] The coated glass 1 is composed of "glass substrate 10 / first functional layer 21 / second functional layer 22 / third functional layer 23 / fourth functional layer 24". Optionally, at least one material parameter of the first functional layer 21, second functional layer 22, third functional layer 23, and fourth functional layer 24 is the same. Optionally, at least one material parameter of the first functional layer 21, second functional layer 22, third functional layer 23, and fourth functional layer 24 is different.

[0090] The fourth functional layer 24 has a thickness of 20-250 nm, for example, 20 nm, or 40 nm, or 60 nm, or 80 nm, or 100 nm, or 120 nm, or 140 nm, or 160 nm, or 180 nm, or 200 nm, or 225 nm, or 250 nm, etc. Preferably, the fourth functional layer 24 has a thickness of 50-250 nm. Further preferably, the fourth functional layer 24 has a thickness of 100-200 nm.

[0091] In one embodiment, as shown in FIG. 1, the coated structure comprises at least one intermediate layer, which is arranged between two functional layers. Figures 1-3

[0092] The intermediate layer is used to reduce reflectivity and adjust side color.

[0093] For example, the coated glass 1 is composed of "glass substrate 10 / first functional layer 21 / first intermediate layer 31 / second functional layer 22".

[0094] For another example, the coated glass 1 is composed of "glass substrate 10 / first functional layer 21 / first intermediate layer 31 / second functional layer 22 / second intermediate layer 32 / third functional layer 23".

[0095] For still another example, the coated glass 1 is composed of "glass substrate 10 / first functional layer 21 / first intermediate layer 31 / second functional layer 22 / second intermediate layer 32 / third functional layer 23 / third intermediate layer 33 / fourth functional layer 24".

[0096] Specifically, the material of the intermediate layer is selected from oxides, nitrides or oxynitrides of at least one element of Si, Zn, Mg, Sn, Ti, Nb, Zr, In and Al.

[0097] For example, the intermediate layer has a thickness of 10-100 nm, for example, 10 nm, or 20 nm, or 30 nm, or 40 nm, or 50 nm, or 60 nm, or 70 nm, or 80 nm, or 90 nm, or 100 nm, etc. Preferably, the intermediate layer has a thickness of 20-80 nm. Further preferably, the intermediate layer has a thickness of 40-60 nm.

[0098] In another embodiment, as shown in FIG. 2, the coated structure further comprises an innermost adhesion layer 40, which contacts the surface of the glass substrate 10, and the functional layers are arranged on the side of the innermost adhesion layer 40 away from the glass substrate 10. Figures 1-3

[0099] ​​The innermost adhesion layer 40 is used to increase the adhesion between the film layer and the glass substrate 10. Optionally, the intermediate layer is arranged on the side of the innermost adhesion layer 40 away from the glass substrate 10.

[0100] For example, the coated glass 1 is composed of "glass substrate 10 / innermost adhesion layer 40 / first functional layer 21 / first intermediate layer 31 / second functional layer 22".

[0101] For another example, the coated glass 1 is composed of "glass substrate 10 / innermost adhesion layer 40 / first functional layer 21 / first intermediate layer 31 / second functional layer 22 / second intermediate layer 32 / third functional layer 23".

[0102] For another example, the coated glass 1 is composed of "glass substrate 10 / innermost adhesion layer 40 / first functional layer 21 / first intermediate layer 31 / second functional layer 22 / second intermediate layer 32 / third functional layer 23".

[0103] The innermost adhesion layer 40 includes a high refractive index layer 41, and the refractive index of the high refractive index layer 41 is 1.95-2.13.

[0104] The innermost adhesion layer 40 can be composed of a single high refractive index layer 41. For example, the coated glass 1 is composed of "glass substrate 10 / high refractive index layer 41 / first functional layer 21 / first intermediate layer 31 / second functional layer 22".

[0105] The refractive index of the high refractive index layer 41 can be, for example, 1.95, or 1.97, or 1.99, or 2.01, or 2.03, or 2.05, or 2.07, or 2.09, or 2.11, or 2.13, etc.

[0106] Further, the material of the high refractive index layer 41 is selected from oxides of at least one element of Zn, Sn, Nb, Ti, Cr, Ta and Zr, or one or more of nitrides and oxynitrides including at least one element of Si, Zr and Al.

[0107] Further, the thickness of the high refractive index layer 41 is 25-55 nm, and can be, for example, 25 nm, or 30 nm, or 35 nm, or 40 nm, or 45 nm, or 50 nm, or 55 nm, etc. Preferably, the thickness of the high refractive index layer 41 is 30-55 nm. Further preferably, the thickness of the high refractive index layer 41 is 30-50 nm.

[0108] Alternatively, the innermost attachment layer 40 may further include at least one stacked structure, each of the stacked structures including a high refractive index layer 41 and a low refractive index layer 42, wherein the high refractive index layer 41 is closer to the glass substrate 10 than the low refractive index layer 42, and the refractive index of the low refractive index layer 42 is 1.40 to 1.80.

[0109] The innermost layer 40 may also be composed of a stacked structure of a high-refractive-index layer 41 and a low-refractive-index layer 42. Optionally, there may be one to four stacked structures.

[0110] For example, the coated glass 1 is composed of "glass substrate 10 / high refractive index layer 41 / low refractive index layer 42 / first functional layer 21 / first intermediate layer 31 / second functional layer 22".

[0111] The refractive index of the low refractive index layer 42 can be specifically exemplified as 1.40, 1.45, 1.50, 1.55, 1.60, 1.65, 1.70, 1.75, or 1.80, etc.

[0112] Furthermore, the low-refractive-index material is selected from oxides of at least one element selected from Si, Al and B, or fluorides including at least one element selected from Mg, Al and Ba.

[0113] And / or, the thickness of the low refractive index layer 42 is 0~45nm, specifically, for example, 5nm, 10nm, 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, or 45nm, etc. Preferably, the thickness of the low refractive index layer 42 is 10nm~45nm. More preferably, the thickness of the low refractive index layer 42 is 10nm~30nm.

[0114] Therefore, the innermost attachment layer 40 of this embodiment is composed of a single high refractive index layer 41, or a stacked structure of high refractive index layer 41 and low refractive index layer 42, and can also form an anti-reflection layer to reduce the reflectivity of the coated glass 1.

[0115] In yet another implementation, such as Figures 1-3 As shown, the coating structure also includes an outermost protective layer 50, which is the film layer furthest from the glass substrate 10 in the coating structure.

[0116] The outermost protective layer 50 is used to improve the overall film's resistance to environmental and mechanical properties.

[0117] For example, the coated glass 1 is composed of "glass substrate 10 / innermost adhesion layer 40 / first functional layer 21 / first intermediate layer 31 / second functional layer 22 / outermost protective layer 50".

[0118] For another example, the coated glass 1 is composed of "glass substrate 10 / innermost adhesion layer 40 / first functional layer 21 / first intermediate layer 31 / second functional layer 22 / second intermediate layer 32 / third functional layer 23 / outermost protective layer 50".

[0119] For another example, the coated glass 1 is composed of "glass substrate 10 / innermost adhesion layer 40 / first functional layer 21 / first intermediate layer 31 / second functional layer 22 / second intermediate layer 32 / third functional layer 23 / outermost protective layer 50".

[0120] The outermost protective layer 50 is made of an oxide of at least one element selected from Si, Al and B, or a fluoride including at least one element selected from Mg, Al and Ba.

[0121] The thickness of the outermost protective layer 50 is 40-100 nm, for example, 40 nm, 50 nm, 60 nm, 70 nm, 80 nm, 90 nm or 100 nm. Preferably, the thickness of the outermost protective layer 50 is 50-90 nm. Further preferably, the thickness of the outermost protective layer 50 is 60-80 nm.

[0122] Further, the refractive index of the outermost protective layer 50 is 1.40-1.80.

[0123] The outermost protective layer 50 can serve as a low-refractive sublayer to form a high-low refractive index anti-reflection stack with other film layers, thereby further reducing the reflectivity of the coated glass 1.

[0124] The refractive index of the outermost protective layer 50 is, for example, 1.40, 1.45, 1.50, 1.55, 1.60, 1.65, 1.70, 1.75 or 1.80.

[0125] In yet another embodiment, as shown in FIG. 1C, the coated structure further includes a dielectric layer, which is disposed between the innermost adhesion layer 40 and the functional layer, and / or between the functional layer and the intermediate layer, and / or between the functional layer and the outermost protective layer 50. Figures 1-3 The dielectric layer is used to increase the adhesion between the functional layer and the innermost adhesion layer 40, between the functional layer and the intermediate layer, and between the functional layer and the outermost protective layer 50.

[0126]

[0127] ​For example, the coated glass 1 is composed of “a glass substrate 10 / a most inner adhesion layer 40 / a first medium layer 61 / a first functional layer 21 / a second medium layer 62 / a first intermediate layer 31 / a third medium layer 63 / a second functional layer 22 / a fourth medium layer 64 / a second intermediate layer 32 / a fifth medium layer 65 / a third functional layer 23 / a sixth medium layer 66 / a third intermediate layer 33 / a seventh medium layer 67 / a fourth functional layer 24 / eighth medium layer 68 / a most outer protective layer 50”.

[0128] The material of the medium layer is selected from at least one of AZO, Ti alloy, NbOx, TiOx, NiCr, NiCrOx, ZnAlOx, ZnOx, and SnOx, wherein x in SnOx satisfies 1 < x ≤ 3.

[0129] The thickness of the medium layer is 0-40 nm, and specifically can be 5 nm, or 10 nm, or 15 nm, or 20 nm, or 25 nm, or 30 nm, or 35 nm, or 40 nm, etc. Preferably, the thickness of the medium layer is 10-40 nm. Further preferably, the thickness of the medium layer is 10-30 nm.

[0130] The application further provides a preparation method of the coated glass, and the preparation method comprises the following steps: S100, providing a glass substrate.

[0131] S200, forming a coated structure on the glass substrate by a magnetron sputtering process, the coated structure comprising at least two functional layers, the functional layer being a SnMOx doped layer, M being a doping element, the refractive index of the functional layer being 2.02-2.16, and the extinction coefficient k of the functional layer being 0.001-0.005.

[0132] The SnMOx doped layer is prepared from a SnMOx target material.

[0133] The proportion of Sn and O in the SnMOx target material is ≥98 wt%.

[0134] The proportion of Sn in the SnMOx target material is 75-80 wt%, and the proportion of O in the SnMOx target material is 20-25 wt%.

[0135] The doping element M comprises a main doping element M1: Nb and Ta, and the proportion of the main doping element M1 in the SnMOx target material is 1.5-2 wt%.

[0136] The doping element M comprises a secondary doping element M2: at least one selected from Ti, Na, Zr, Sb, In, Hf, Mg, Ca, Al, Ga, and K, and the proportion of the secondary doping element M2 in the SnMOx target material is ≤0.5 wt%.

[0137] The application provides a vehicle, which comprises a vehicle body and the coated glass provided in the application.

[0138] The vehicle provided by the application can have a lower emissivity by using the coated glass provided in the application, so that the better winter heating and summer cooling effect is achieved, and the coated glass has a lower visible light reflectivity, a more neutral front color and side color, so that the visual comfort of the user is improved, the appearance of the vehicle is improved, the use experience of the user is improved, and the manufacturing cost of the coating is reduced.

[0139] In order to make the purpose and advantages of the application more clear, the effects of the coated glass provided by the application are further described in detail below in combination with specific examples.

[0140] In the comparative examples 1-5 and the examples 1-12, the coated structure is provided on the glass substrate, and the specific film layer materials and thicknesses of the coated structure and the glass substrate are shown in Tables 1-6. The specific component data of the functional layer in the examples 1-12 are shown in Table 7.

[0141] In addition, the following indexes of the coated structure in the comparative examples 1-5 and the examples 1-12 are measured respectively: (1) the visible light reflectivity R of the coated glass, unit: %; (2) the reflection Lab value of the coated glass: a value and b value for the light incident from the side of the coated structure and the incident angle of 8°, 30°, 45° and 60°; (3) the visible light transmittance T of the coated glass, unit: %; (4) the emissivity E of the coated glass; The specific index data of the comparative examples 1-5 and the examples 1-12 are shown in Tables 8-13.

[0142] Table 1 Film layer materials and thicknesses of the coated glass of comparative examples 1-2

[0143] Table 2 Film layer materials and thicknesses of the coated glass of comparative examples 3-5

[0144] Table 3 Film layer materials and thicknesses of the coated glass of examples 1-3

[0145] Table 4. Film layer material and thickness table of coated glasses of Examples 4-6

[0146] Table 5. Film layer material and thickness table of coated glasses of Examples 7-9

[0147] Table 6. Film layer material and thickness table of coated glasses of Examples 10-12

[0148] Table 7. Composition table of functional layers of Examples 1-12

[0149] Table 8. Performance parameter table of coated glasses of Comparative Examples 1-3

[0150] Table 9. Performance parameter table of coated glasses of Comparative Examples 4-5

[0151] Table 10. Performance parameter table of coated glasses of Examples 1-3

[0152] Table 11. Performance parameter table of coated glasses of Examples 4-6

[0153] Table 12. Performance parameter table of coated glasses of Examples 7-9

[0154] Table 13. Performance parameter table of coated glasses of Examples 10-12

[0155] Please refer to Table 1 and Table 8, Comparative Examples 1-2 are conventional ITO anti-reflective film systems, Comparative Example 1 uses three layers of high and low refractive index superposition, in which the first high refractive index layer, the third high refractive index layer is an ITO conductive layer; Comparative Example 2 uses five layers of high and low refractive index layer superposition, in which the first high refractive index layer, the third high refractive index layer, the fifth high refractive index layer is an ITO conductive layer. As can be seen from the data in Table 8 below, although the front 8° color reflectivity of the coated monolithic and laminated glass is very low, and the a, b values are neutral color. But the side angle color, that is, the a, b values of the 30°, 45°, 60° reflection deviate from the neutral color more, which does not meet the application scenario of sunroof glass, and the E value is 0.31, 0.25 respectively, the radiation rate is high, and the winter warm and summer cool effect is poor.

[0156] Please refer to Table 2, Table 8 and Table 9, the comparative example 3 and the comparative example 4 use the conventional double silver, triple silver structure, wherein the adhesion layer is the high, low refractive index layer stacked anti-reflection structure, the functional layer uses ITO, and the intermediate layer uses SiNx. From the results of the comparative example 3, it can be seen that the single piece side a value is maintained between -0.7~0.9, and the b value is maintained between -2.9~0.8, after splicing, the side a value is maintained between -2.1~0.7, and the b value is maintained between -2.8~0.9, compared with the comparative example 1, which is also a double-layer ITO, under the premise of maintaining a low reflectivity, the side color is more neutral, which meets the application scenario of the sunroof glass. However, the E value of the comparative example 3 is 0.31, and the winter-warm summer-cool effect is poor. The comparative example 4 is a triple ITO structure as the comparative example 2, but from the results, the comparative example 4 uses a conventional triple silver structure, which has a lower reflectivity and a more neutral side color, which meets the application scenario of the sunroof glass, but the E value of the comparative example 4 is 0.22, and the winter-warm summer-cool effect is poor.

[0157] The comparative example 5 is a conventional single silver structure, SiNx+SiO2 forms a high-low anti-reflection layer as the innermost adhesion layer, SnMOx as the functional layer, SiO2 as the top protective layer, and there is no intermediate layer. From the data results, it can be seen that the single silver structure without an intermediate layer has a low 8° reflectivity on the front side, and the reflected color is neutral; the side color a value changes little, but the side color b value changes greatly. At the same time, E=0.55 is too large, which does not meet the application scenario of the sunroof glass, and the winter-warm summer-cool effect is poor. Moreover, if a single functional layer structure is used, it will also result in a large change in side color and a large E value, which does not meet the application scenario of the sunroof glass, and the winter-warm summer-cool effect is poor.

[0158] Please refer to Table 3 and Table 10, the examples 1, 2 and 3 are double functional layer, triple functional layer and four functional layer structures, which use SnMOx as the functional layer, wherein SiNx+SiO2 forms a high-low anti-reflection layer as the innermost adhesion layer, SiNx as the intermediate layer, and SiO2 as the innermost protective layer.

[0159] The example 1 has a lower E value of 0.15, lower 8° reflectivity on the front side, and smaller differences in side color a, b values (8°, 30°, 45°, 60°) compared with the comparative examples 1 and 3, and the color is more neutral, which meets the application scenario of the sunroof glass.

[0160] The example 2 has a lower E value of 0.15, lower 8° reflectivity on the front side, and smaller differences in side color a, b values (8°, 30°, 45°, 60°) compared with the comparative examples 2 and 4, and the color is more neutral, which meets the application scenario of the sunroof glass.

[0161] Example 3, with SnMOx as the functional layer, has lower front side 8° reflectance at E = 0.11, and the side color a, b values (8°, 30°, 45°, 60°) also have smaller differences, and the color is more neutral, which meets the application scenario of sunroof glass.

[0162] Referring to Table 4 and Table 11, the first glass sheet and the second glass sheet of Example 4 are gray glass, the interlayer bonding layer is ordinary PVB, the film system structure adopts a double functional layer structure, SnMOx is used as the functional layer, and the front side 8° reflectance is also lower at E = 0.15, and the side color a, b values (8°, 30°, 45°, 60°) also have smaller differences, and the color is more neutral, which meets the application scenario of sunroof glass.

[0163] Example 5, the first glass sheet and the second glass sheet are gray glass, the interlayer bonding layer is ordinary PVB, the film system structure adopts a three functional layer structure, SnMOx (doped SnOx) is used as the functional layer, and the front side 8° reflectance is also lower at E = 0.15, and the side color a, b values (8°, 30°, 45°, 60°) also have smaller differences, and the color is more neutral, which meets the application scenario of sunroof glass.

[0164] Example 6, the first glass sheet and the second glass sheet are gray glass, the interlayer bonding layer is ordinary PVB, the film system structure adopts a four functional layer structure, SnMOx is used as the functional layer, and the front side 8° reflectance is also lower at E = 0.11, and the side color a, b values (8°, 30°, 45°, 60°) also have smaller differences, and the color is more neutral, which meets the application scenario of sunroof glass.

[0165] Referring to Table 5 and Table 12, the first glass sheet and the second glass sheet of Example 7 are ordinary white glass, the interlayer bonding layer is gray PVB with a transmittance of 10%, the film system structure adopts a double functional layer structure, SnMOx is used as the functional layer, and the front side 8° reflectance is also lower at E = 0.15, and the side color a, b values (8°, 30°, 45°, 60°) also have smaller differences, and the color is more neutral, which meets the application scenario of sunroof glass.

[0166] Example 8, the first glass sheet and the second glass sheet are ordinary white glass, the interlayer bonding layer is gray PVB with a transmittance of 10%, the film system structure adopts a three functional layer structure, SnMOx is used as the functional layer, and the front side 8° reflectance is also lower at E = 0.15, and the side color a, b values (8°, 30°, 45°, 60°) also have smaller differences, and the color is more neutral, which meets the application scenario of sunroof glass.

[0167] The first glass plate and the second glass plate of Example 9 are ordinary white glass, the intermediate adhesive layer is a gray PVB with a transmittance of 10%, the film system structure adopts a four-function layer structure, SnMOx is used as the functional layer, the front 8° reflectivity is also lower under the premise of E = 0.10, the difference between the side color a and b values (8°, 30°, 45°, 60°) is also smaller, the color is more neutral, and the application scenario of the sunroof glass is met.

[0168] Referring to Tables 6 and 13, the first glass plate and the second glass plate of Example 10 are ordinary white glass, the intermediate adhesive layer is an ordinary PVB film, the film system structure adopts a double-function layer structure, SnMOx is used as the functional layer, the front 8° reflectivity is also lower under the premise of E = 0.14, the difference between the side color a and b values (8°, 30°, 45°, 60°) is also smaller, the color is more neutral, and the application scenario of the sunroof glass is met.

[0169] The first glass plate and the second glass plate of Example 11 are ordinary white glass, the intermediate adhesive layer is an ordinary PVB film, the film system structure adopts a three-function layer structure, SnMOx is used as the functional layer, the front 8° reflectivity is also lower under the premise of E = 0.12, the difference between the side color a and b values (8°, 30°, 45°, 60°) is also smaller, the color is more neutral, and the application scenario of the sunroof glass is met.

[0170] The first glass plate and the second glass plate of Example 12 are ordinary white glass, the intermediate adhesive layer is an ordinary PVB film, the film system structure adopts a four-function layer structure, SnMOx is used as the functional layer, the front 8° reflectivity is also lower under the premise of E = 0.09, the difference between the side color a and b values (8°, 30°, 45°, 60°) is also smaller, the color is more neutral, and the application scenario of the sunroof glass is met.

[0171] In summary, by using SnMOx doped layer as the functional layer of the coating film structure, and limiting the refractive index and extinction coefficient of the functional layer, and cooperating with the film layer design of the intermediate layer, the innermost adhesive layer, the outermost protective layer and the dielectric layer, the coated glass can have a lower emissivity, achieve better winter heating and summer cooling effect, also make the coated glass have a lower visible light reflectivity, a more neutral front color and side color, thereby improving the visual comfort of the user, improving the aesthetics of the vehicle, improving the use experience of the user, and also reducing the cost of coating manufacturing.

[0172] Unless otherwise stated or contradictory, the terms or phrases used in the present application have the following meanings: In the present application, "first", "second", and the like are only used 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" can explicitly or implicitly include at least one of the features.

[0173] In the present application, "one or more" means any one, any two or more than two of the listed items. Among them, "several" means any two or more than two.

[0174] In the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0175] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral. It can be mechanical connection, or electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0176] In the present application, the mention of "embodiments" or "embodiments" means that the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. The appearance of the phrase in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the embodiments of the present application can be combined with each other without contradiction, to form another embodiment without departing from the spirit and scope of the present application.

[0177] The above is part of the embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A coated glass, characterized in that, The coated glass includes a glass substrate and a coating structure disposed on the glass substrate. The coating structure includes at least two functional layers. The functional layer is a SnMOx doped layer, where M is a doping element. The refractive index of the functional layer is 2.02~2.16, and the extinction coefficient k of the functional layer is 0.001~0.

005.

2. The coated glass as described in claim 1, characterized in that, The proportion of Sn and O in the SnMOx doped layer is ≥98 wt%; The proportion of Sn in the SnMOx doped layer is 75wt%~80wt%, and the proportion of O in the SnMOx doped layer is 20wt%~25wt%.

3. The coated glass as described in claim 1, characterized in that, The doping element M includes a main doping element M1, which is Nb and Ta; The main doping element M1 accounts for 1.5wt% to 2wt% of the SnMOx doped layer.

4. The coated glass as described in claim 1, characterized in that, The doping element M includes a secondary doping element M2, which is selected from at least one of Ti, Na, Zr, Sb, In, Hf, Mg, Ca, Al, Ga, and K. The proportion of the secondary dopant element M2 in the SnMOx doped layer is ≤0.5wt%.

5. The coated glass as described in claim 1, characterized in that, The coating structure includes multiple functional layers: a first functional layer and a second functional layer, wherein the first functional layer is closer to the glass substrate than the second functional layer; The thickness of the first functional layer is 10nm~200nm, and the thickness of the second functional layer is 50nm~250nm.

6. The coated glass as described in claim 1, characterized in that, The coating structure includes multiple functional layers: a first functional layer, a second functional layer, and a third functional layer, wherein the first functional layer is closer to the glass substrate than the second functional layer, and the second functional layer is closer to the glass substrate than the third functional layer. The thickness of the first functional layer is 10nm~200nm, the thickness of the second functional layer is 50nm~250nm, and the thickness of the third functional layer is 150nm~250nm.

7. The coated glass as described in claim 1, characterized in that, The coating structure includes a plurality of functional layers: a first functional layer, a second functional layer, a third functional layer, and a fourth functional layer, wherein the first functional layer is closer to the glass substrate than the second functional layer, the second functional layer is closer to the glass substrate than the third functional layer, and the third functional layer is closer to the glass substrate than the fourth functional layer. The thickness of the first functional layer is 10nm~200nm, the thickness of the second functional layer is 50nm~250nm, the thickness of the third functional layer is 150nm~250nm, and the thickness of the fourth functional layer is 20nm~250nm.

8. The coated glass as described in claim 1, characterized in that, The coating structure includes at least one intermediate layer, which is disposed between the two functional layers; The material of the intermediate layer is selected from oxides, nitrides or oxynitrides of at least one element selected from Si, Zn, Mg, Sn, Ti, Nb, Zr, In and Al. And / or, the thickness of the intermediate layer is 10nm~100nm.

9. The coated glass as described in claim 1, characterized in that, The coating structure further includes an innermost adhesion layer, which contacts the surface of the glass substrate, and the functional layer is disposed on the side of the innermost adhesion layer away from the glass substrate.

10. The coated glass as described in claim 9, characterized in that, The innermost attachment layer includes a high refractive index layer with a refractive index of 1.95 to 2.13; The material of the high refractive index layer is selected from oxides of at least one element selected from Zn, Sn, Nb, Ti, Cr, Ta and Zr, or one or more of nitrides and oxynitrides including at least one element selected from Si, Zr and Al. And / or, the thickness of the high refractive index layer is 25nm~55nm.

11. The coated glass as described in claim 10, characterized in that, The innermost attachment layer further includes at least one stacked structure, each of the stacked structures including a high refractive index layer and a low refractive index layer, wherein the high refractive index layer is closer to the glass substrate than the low refractive index layer, and the refractive index of the low refractive index layer is 1.40~1.80; The low-refractive-index material is selected from oxides of at least one element selected from Si, Al and B, or fluorides including at least one element selected from Mg, Al and Ba. And / or, the thickness of the low refractive index layer is 0~45nm.

12. The coated glass as described in claim 9, characterized in that, The coating structure also includes an outermost protective layer, which is the film layer in the coating structure that is furthest from the glass substrate. The material of the outermost protective layer is selected from oxides of at least one element selected from Si, Al and B, or fluorides including at least one element selected from Mg, Al and Ba. And / or, the thickness of the outermost protective layer is 40nm~100nm; And / or, the refractive index of the outermost protective layer is 1.40~1.

80.

13. The coated glass as described in claim 12, characterized in that, The coating structure includes at least one intermediate layer, which is disposed between the two functional layers; The coating structure further includes a dielectric layer, which is disposed between the innermost adhesion layer and the functional layer, and / or between the functional layer and the intermediate layer, and / or between the functional layer and the outermost protective layer; The material of the dielectric layer is selected from at least one of AZO, Ti alloy, NbOx, TiOx, NiCr, NiCrOx, ZnAlOx, ZnOx, and SnOx, wherein x in SnOx satisfies: 1 < x ≤ 3; And / or, the thickness of the dielectric layer is 0~40nm.

14. The coated glass as described in claim 1, characterized in that, The visible light reflectance R of the coated glass is ≤6%.

15. The coated glass as described in claim 1, characterized in that, The emissivity E of the coated glass is ≤0.

15.

16. The coated glass as described in claim 1, characterized in that, For light rays incident from one side of the coating structure at an angle of 0° to 60°, the Lab value of the reflected light from the coated glass satisfies: -3≤a≤1, -3≤b≤1.

17. The coated glass as described in claim 16, characterized in that, For light rays incident from one side of the coated structure at an incident angle α1 satisfying 0 < α1 ≤ 10°, the coated glass has reflectance Lab1 values: a1 and b1; For light rays incident from one side of the coating structure with an incident angle α2 satisfying 10°<α2≤60°, the coated glass has reflectance Lab2 values: a2 and b2; Where the absolute value of the difference between a1 and a2 is ≤3, and the absolute value of the difference between b1 and b2 is ≤4.

18. The coated glass as described in claim 1, characterized in that, The glass substrate is a single piece of glass, and the coating structure is disposed on one side of the single piece of glass; Alternatively, the glass substrate may include a first glass plate, an intermediate adhesive layer, and a second glass plate stacked sequentially, with the coating structure disposed on the surface of the second glass plate opposite to the intermediate adhesive layer.

19. The coated glass as described in claim 1, characterized in that, The glass substrate includes a first glass plate, an intermediate adhesive layer and a second glass plate stacked in sequence, and the coating structure is disposed on the surface of the second glass plate opposite to the first glass plate. The visible light transmittance of the coated glass is ≤10%.

20. A vehicle, characterized in that, The vehicle includes a body and a coated glass as described in any one of claims 1-19, the coated glass being disposed on the body.

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