Coated glass and preparation method thereof, laminated glass and vehicle

Abstract

The embodiment of the invention provides coated glass and a preparation method thereof, laminated glass and a vehicle. The coated glass comprises a glass plate, the glass plate is provided with a preset surface, the preset surface comprises a coating area, a laser film removing area and a coating film removing area, and the laser film removing area is located between the coating area and the coating film removing area and connected with the coating area and the coating film removing area; in the arrangement direction of the film coating area, the laser film removing area and the coating film removing area, the range of the ratio w1 / w2 of the width w1 of the laser film removing area to the width w2 of the coating film removing area is that the ratio w1 / w2 is larger than or equal to 0.005 and smaller than or equal to 0.5; and the functional layer is arranged on the preset surface of the glass plate and covers the film coating area. The coated glass provided by the embodiment of the invention has small color difference and is not easy to erode by water and oxygen.

Description

Technical Field

[0001] The present application relates to the field of glass, and in particular to a coated glass and a preparation method thereof, laminated glass and a vehicle. Background Art

[0002] In order to make the glass of the vehicle (such as windshield, side window glass, etc.) have better functions such as heat insulation, anti-reflection, UV protection, electric heating, head-up display, etc., a functional film layer with a nanometer thickness is usually set on the glass plate through a physical vapor deposition (PVD) process. In order to prevent the functional film layer from being damaged by oxygen and water vapor in the air, the functional film layer covering the peripheral area of ​​the glass plate is usually removed; in order to prevent the functional film layer from interfering with or even blocking the transmission and / or reception of detection signals by sensors such as cameras, lidars, and electronic toll collection (ETC) modules, the functional film layer on the glass plate where the signal passes through the area is usually removed; these operations of removing the functional film layer are referred to as film removal by those skilled in the art. Examples of film removal methods in the prior art include cover plate masking film removal, tape film removal, mechanical friction film removal, and chemical etching film removal. These film removal methods have the disadvantages of causing the obtained coated glass to have a large color difference, and its functional film layer is easily corroded by water and oxygen in the edge area, as well as high cost. Summary of the invention

[0003] The embodiment of the present application provides a coated glass, which has a smaller color difference and is not easily corroded by water and oxygen.

[0004] In a first aspect, an embodiment of the present application provides a coated glass, comprising:

[0005] A glass plate, wherein the glass plate has a preset surface, wherein the preset surface includes a coating area, a laser film removal area, and a coating film removal area, wherein the laser film removal area is located between the coating area and the coating film removal area and respectively connects the coating area and the coating film removal area; along the arrangement direction of the coating area, the laser film removal area, and the coating film removal area, a ratio w1 / w2 of a width w1 of the laser film removal area to a width w2 of the coating film removal area is in a range of: 0.005≤w1 / w2≤0.5; and

[0006] A functional layer is disposed on the preset surface of the glass plate and covers the coating area.

[0007] In a second aspect, the present application also provides a method for preparing coated glass, which comprises:

[0008] A glass substrate is provided, wherein the glass substrate has a surface to be plated, wherein the surface to be plated includes a coating area, a first area, and a second area, wherein the first area is located between the coating area and the second area and is respectively connected to the coating area and the second area;

[0009] forming a film-removing coating on the second area;

[0010] forming a coating layer on the coating area, the first area and the film removal coating;

[0011] removing the film removal coating and the coating layer on the film removal coating, so that the second area forms a coating film removal area; and

[0012] The coating layer on the first area is removed by laser so that the first area forms a laser film removal area, the portion of the coating layer located in the coating area forms a functional layer, and the glass substrate forms a glass plate to obtain the coated glass; wherein the glass plate has a preset surface, the preset surface includes a coating area, a laser film removal area and a coating film removal area, the laser film removal area is located between the coating area and the coating film removal area and respectively connects the coating area and the coating film removal area; along the arrangement direction of the coating area, the laser film removal area and the coating film removal area, the ratio w1 / w2 of the width w1 of the laser film removal area to the width w2 of the coating film removal area is in the range of: 0.005≤w1 / w2≤0.5.

[0013] In a third aspect, the present application also provides a laminated glass, comprising:

[0014] External glass panels;

[0015] an adhesive layer disposed on one side of the outer glass plate; and

[0016] The inner glass plate is arranged on a side of the adhesive layer away from the outer glass plate, and at least one of the outer glass plate and the inner glass plate is the coated glass described in the first aspect of the present application.

[0017] In a fourth aspect, an embodiment of the present application further provides a vehicle, comprising:

[0018] body; and

[0019] The coated glass described in the first aspect of the present application or the laminated glass described in the third aspect of the present application, the coated glass or the laminated glass is installed on the vehicle body.

[0020] The present application provides a coated glass and a method for manufacturing the same, a laminated glass and a vehicle. By designing the ratio of the width of the laser film removal area and the coating film removal area of ​​the glass plate, the prepared coated glass can have a smaller color difference and a better appearance effect; in addition, the functional layer of the coated glass can be better prevented from being corroded by water vapor and oxygen, thereby increasing the service life of the coated glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the planar structure of coated glass according to an embodiment of the present application.

[0023] Figure 2 yes Figure 1 The cross-sectional structure schematic diagram of the coated glass along the AA direction is shown.

[0024] Figure 3 It is a schematic diagram of the planar structure of coated glass according to another embodiment provided in the present application.

[0025] Figure 4 It is a schematic diagram of the planar structure of coated glass according to another two embodiments provided in the present application.

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the coated glass with a shielding layer provided in the present application.

[0027] Figure 6 It is a schematic flow chart of a method for preparing coated glass provided in the present application.

[0028] Figure 7 It is a structural schematic diagram of a preparation process of coated glass provided in the present application.

[0029] Figure 8 It is a structural schematic diagram of another preparation process of coated glass provided in the present application.

[0030] Fig. 9 It is a schematic flow chart of another method for preparing coated glass provided in the present application.

[0031] Fig.10 It is a schematic diagram of the structure of a laminated glass provided in this application.

[0032] Fig.11 It is a schematic diagram of the structure of another laminated glass provided in the present application.

[0033] Fig.12 It is a schematic diagram of the structure of two other types of laminated glass provided in this application.

[0034] Fig.13 It is a schematic diagram of the structures of three other types of laminated glass provided in this application.

[0035] Fig.14It is a structural schematic diagram of a vehicle provided by the present application.

[0036] Description of reference numerals:

[0037] 100-coated glass, 10-glass sheet, 11-preset surface, 111-coating area, 112-laser film removal area, 113-coating film removal area, 12-glass layer, 13-shielding layer, 20-functional layer, 10'-glass substrate, 11'-surface to be coated, 112'-first area, 113'-second area, 20'coating layer, 30'-film removal coating, 200-laminated glass, 210-outer glass sheet, 220-adhesive layer, 230-inner glass sheet, 300-vehicle, 310-car body. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0040] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0041] It should be noted that, for the convenience of explanation, in the embodiments of the present application, the same figure marks represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0042] See also Figure 1 and Figure 2The embodiment of the present application provides a coated glass 100, which includes a glass plate 10 and a functional layer 20, the glass plate 10 has a preset surface 11, the preset surface 11 includes a coating area 111, a laser film removal area 112 and a coating film removal area 113, the laser film removal area 112 is located between the coating area 111 and the coating film removal area 113 and is respectively connected to the coating area 111 and the coating film removal area 113; along the arrangement direction of the coating area 111, the laser film removal area 112 and the coating film removal area 113, the ratio w1 / w2 of the width w1 of the laser film removal area 112 to the width w2 of the coating film removal area 113 is in the range of: 0.005≤w1 / w2≤0.5; the functional layer 20 is arranged on the preset surface 11 of the glass plate 10 and covers the coating area 111.

[0043] The coated glass 100 of the embodiment of the present application can be directly applied to vehicles, or can be made into laminated glass and applied to vehicles, for example, as the front windshield, front door glass, rear door glass, corner window glass, rear windshield, skylight glass, etc. The vehicle of the present application can be, but is not limited to, a car, a sedan, a bus, a van, a truck, a train, and other transportation vehicles.

[0044] In some other implementations, the coated glass 100 of the embodiment of the present application can also be applied to architectural glass, etc.

[0045] It should be noted that the coating film removal area 113 on the preset surface 11 is first covered with a film removal coating before the functional layer 20 is formed, and then the functional layer 20 is formed on the preset surface 11, and the functional layer 20 covers the entire preset surface 11 of the glass plate 10, that is, the coating area 111, the laser film removal area 112 and the coating film removal area 113 are all covered with the functional layer 20, and the functional layer 20 in the coating film removal area 113 is attached to the film removal coating, and then the film removal coating is removed after the functional layer 20 is coated, so that the functional layer 20 in the coating film removal area 113 is removed together with the film removal coating to complete the film removal operation of the coating film removal area 113; the functional layer 20 in the laser film removal area 112 is removed by laser burning to complete the film removal operation of the laser film removal area 112.

[0046] It can be understood that the orthographic projection of the functional layer 20 in the coating area 111 coincides with the coating area 111, and the functional layer 20 is stacked in the coating area 111 of the glass plate 10. It can also be understood that the coating removal area 113 does not have the functional layer 20, that is, the functional layer 20 in the coating removal area 113 is 100% removed.

[0047] It can also be understood that the functional layer 20 in the laser film removal area 112 is partially removed or completely removed, for example, the functional layer 20 in the laser film removal area 112 is removed by at least 80%, or by at least 85%, or by at least 90%, or by at least 95%, or even by 100%.

[0048] The glass plate 10 has two opposite surfaces, and the preset surface 11 may be one of the surfaces, or both surfaces may be set as the preset surface 11. In the schematic diagram of this embodiment, the preset surface 11 is taken as one of the surfaces of the glass plate 10 for illustration, which should not be understood as limiting the glass plate 10 provided in the embodiment of the present application.

[0049] like Figure 1 and Figure 3 As shown, in some embodiments, the laser film removal area 112 and the coating film removal area 113 are located in the peripheral area of ​​the glass plate 10, the laser film removal area 112 is arranged around the periphery of the coating area 111, and the coating film removal area 113 is arranged around the periphery of the laser coating area 111.

[0050] like Figure 4 As shown, in other embodiments, the laser film removal area 112 and the coating film removal area 113 are located in the coating area 111, the laser film removal area 112 is arranged around the periphery of the coating film removal area 113, and the coating area 111 is arranged around the periphery of the laser coating area 111; it can be understood that in this embodiment, the location where film removal is required is in the coating area 111.

[0051] Optionally, the number of the laser film removal area 112 may be one or more. When the number of the laser film removal area 112 is plural, the plurality of laser film removal areas 112 may be arranged at intervals.

[0052] Optionally, the number of the coating film removal area 113 may be one or more. When the number of the coating film removal area 113 is plural, the plurality of coating film removal areas 113 may be arranged at intervals.

[0053] It can be understood that the width of the laser film removal area 112 is smaller than the width of the coating film removal area 113 .

[0054] Optionally, the functional layer 20 may be, but is not limited to, at least one of a head-up display functional layer, a heat insulation functional layer, an anti-reflection functional layer, an electric heating functional layer, and the like.

[0055] Among them, the head-up display functional layer may include at least one high refractive index layer / low refractive index layer stacked structure, the refractive index of the high refractive index layer is not less than 1.8, and the refractive index of the low refractive index layer is not higher than 1.6, and an example thereof may be the transparent nanofilm in patent CN104267498A.

[0056] The head-up display functional layer may also include at least two dielectric layers and at least one metal layer, and each metal layer is located between two dielectric layers, and an example of which may be the transparent nanofilm in patent CN104267499A.

[0057] Among them, the heat insulation functional layer can be at least one selected from a single silver nanolayer, a double silver nanolayer, a triple silver nanolayer, a quadruple silver nanolayer, an ITO nanolayer, an FTO nanolayer, and an infrared blocking micron layer. The single silver nanolayer, the double silver nanolayer, the triple silver nanolayer, and the quadruple silver nanolayer can be formed by deposition through a magnetron sputtering process, the ITO nano coating can be formed by deposition through a magnetron sputtering process, and the infrared blocking micron layer can be formed by sol-gel coating, and examples thereof include the low-emissivity coatings in patents CN101372396A, CN102757185A, and CN103073196A.

[0058] Among them, the anti-reflection functional layer may include at least one high refractive index layer / low refractive index layer stacked structure, the refractive index of the high refractive index layer is not less than 1.8, and the refractive index of the low refractive index layer is not higher than 1.7, and examples thereof include the anti-reflection films in CN102922825A and CN103753897A.

[0059] Among them, the electric heating functional layer can be a single silver electric heating layer, a double silver electric heating layer, a triple silver electric heating layer, a quadruple silver electric heating layer, a five silver electric heating layer or a TCO electric heating layer. The single silver electric heating layer, the double silver electric heating layer, the triple silver electric heating layer, the quadruple silver electric heating layer, the five silver electric heating layer and the TCO electric heating layer can be formed by a physical vapor deposition process (PVD) or a chemical vapor deposition process (CVD), and an example can be the low-emissivity film in patent CN102795793A.

[0060] The present application may cite the above patent content, which will not be described in detail here. In the present application, the physical thickness of the functional layer 20 is 100nm to 500nm.

[0061] Specifically, along the arrangement direction of the coating area 111, the laser film removal area 112 and the coating film removal area 113, the ratio w1 / w2 of the width w1 of the laser film removal area 112 to the width w2 of the coating film removal area 113 can be but not limited to 0.005, 0.008, 0.01, 0.0125, 0.02, 0.04, 0.05, 0.06, 0.08, 0.1, 0.12, 0.14, 0.16, 0.18, 0.2, 0.22, 0.24, 0.26, 0.28, 0.3, 0.35, 0.4, 0.45, 0.5, etc. If the ratio w1 / w2 of the width w1 of the laser film removal area 112 to the width w2 of the coating film removal area 113 is too small, for example, less than 0.005, it may be that the width w1 of the laser film removal area 112 is too small, it is difficult to completely remove the color difference area at the edge of the functional layer 20, so that the edge of the functional layer 20 has color difference, affecting the appearance of the coated glass 100; it may also be that the width w2 of the coating film removal area 113 is too large, which will reduce the area of ​​the coating area 111 and reduce the film removal efficiency of the coating film removal area 113. In addition, after the coated glass 100 is installed on the vehicle, the boundary between the functional layer 20 and the laser film removal area 112 may be easily seen, affecting the appearance of the coated glass 100; if the ratio w1 / w2 of the width w1 of the laser film removal area 112 to the width w2 of the coating film removal area 113 is too large, for example, greater than 0 .5, it may be that the width w1 of the laser film removal area 112 is too large, which will reduce the film removal efficiency of the laser film removal area 112 and increase the production cost of the coated glass 100. In addition, the width w1 of the laser film removal area 112 is too large, and the functional layer 20 in this area is usually difficult to completely remove by laser. The bond energy of the unremoved functional layer 20 is destroyed, the activity is increased, and it is easy to react with water vapor and oxygen in the air, thereby causing corrosion and other erosion phenomena, thereby increasing the probability of the functional layer 20 of the coating area 111 (especially the position in contact with the laser film removal area 112) being corroded by water vapor and oxygen; it may also be that the width w2 of the coating film removal area 113 is too small, and the functional layer 20 of the coating area 111 is too close to the edge area, so that water vapor and oxygen can easily penetrate into the functional layer 20, corrode the functional layer 20, and reduce the service life of the functional layer 20. When the ratio w1 / w2 of the width w1 of the laser film removal area 112 to the width w2 of the coating film removal area 113 along the arrangement direction of the coating area 111, the laser film removal area 112 and the coating film removal area 113 is in the range of: 0.005≤w1 / w2≤0.5, the coated glass 100 can have a smaller color difference or even completely eliminate the color difference, thereby having a better appearance effect; in addition, it can also better prevent the functional layer 20 of the coated glass 100 from being corroded by water vapor and oxygen, thereby improving the service life of the coated glass 100.Preferably, 0.01≤w1 / w2≤0.3, or 0.01≤w1 / w2≤0.2.

[0062] In some embodiments, the width w1 of the laser film removal area 112 is in the range of 1 mm≤w1≤8 mm.

[0063] Specifically, the width w1 of the laser film removal area 112 may be, but is not limited to, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, etc. Preferably, 2 mm≤w1≤5 mm.

[0064] In this embodiment, if the width w1 of the laser film removal area 112 is too small, it is difficult to completely remove the chromatic aberration area at the edge of the functional layer 20, so that the edge of the functional layer 20 has chromatic aberration, affecting the appearance of the coated glass 100; if the width w1 of the laser film removal area 112 is too large, the film removal efficiency of the laser film removal area 112 will be reduced, and the production cost of the coated glass 100 will be increased. In addition, if the width w1 of the laser film removal area 112 is too large, the functional layer 20 in this area is usually difficult to completely remove by laser, and the bond energy of the unremoved functional layer 20 is destroyed, the activity is increased, and it is easy to react with water vapor and oxygen in the air, thereby causing corrosion and other erosion phenomena, thereby increasing the probability of the functional layer 20 in the coating area 111 (especially the position in contact with the laser film removal area 112) being corroded by water vapor and oxygen.

[0065] In some embodiments, the width w2 of the coating film removal area 113 is in the range of 5 mm≤w2≤400 mm.

[0066] Specifically, the width w2 of the coating film removal area 113 may be, but is not limited to, 5 mm, 8 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 75 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, etc. Preferably, 5 mm ≤ w2 ≤ 200 mm, or 5 mm ≤ w2 ≤ 100 mm, or 5 mm ≤ w2 ≤ 75 mm, or 10 mm ≤ w2 ≤ 200 mm, or 20 mm ≤ w2 ≤ 100 mm, or 30 mm ≤ w2 ≤ 200 mm, etc.

[0067] In this embodiment, if the width w2 of the coating film removal area 113 is too small, the functional layer 20 of the coating area 111 is too close to the edge area, so that water vapor and oxygen can easily penetrate into the functional layer 20, corrode the functional layer 20, and reduce the service life of the functional layer 20; if the width w2 of the coating film removal area 113 is too large, the area of ​​the coating area 111 is reduced, and the heat insulation, UV protection and other effects of the coated glass 100 are reduced. In addition, after the coated glass 100 is installed on the vehicle, the boundary between the functional layer 20 and the laser film removal area 112 may be easily seen, affecting the appearance of the coated glass 100. Furthermore, if the width w2 of the coating film removal area 113 is too large, the film removal efficiency will be reduced, and the preparation cost of the coated glass 100 will be increased.

[0068] In some embodiments, the coated glass 100 has a curved shape that meets the requirements for vehicle use after being subjected to a high-temperature bending treatment at a temperature of at least 500°C (i.e., greater than or equal to 500°C, such as 500°C, 550°C, 600°C, 650°C, etc.). The high-temperature bending treatment at a temperature of at least 500°C can be exemplified by a self-weight bending process or a press bending process for producing automotive glass.

[0069] Optionally, the roughness Ra1 of the surface of the functional layer 20 facing away from the glass plate 10 is less than or equal to the roughness Ra2 of the laser film removal area 112 ; the roughness Ra2 of the laser film removal area 112 is less than the roughness Ra3 of the coating film removal area 113 .

[0070] In this embodiment, the laser film removal area 112 and the coating film removal area 113 are usually located in the edge area of ​​the coated glass 100. By making the roughness Ra1 of the surface of the functional layer 20 away from the glass plate 10 less than or equal to the roughness Ra2 of the laser film removal area 112; the roughness Ra2 of the laser film removal area 112 is less than the roughness Ra3 of the coating film removal area 113, the roughness of the coated glass 100 near the edge area is larger, which is beneficial to the installation of accessories such as edging and nail pillars when the coated glass 100 is used in vehicles.

[0071] In some embodiments, the roughness Ra1 of the surface of the functional layer 20 facing away from the glass plate 10 is in the range of 5nm≤Ra1≤20nm; the roughness Ra2 of the laser film removal area 112 is in the range of 10nm≤Ra2≤50nm, and the difference Ra3-Ra2 between the roughness Ra3 of the coating film removal area 113 and the roughness Ra2 of the laser film removal area 112 is in the range of Ra3-Ra2≥5nm.

[0072] Specifically, the roughness Ra1 of the surface of the functional layer 20 facing away from the glass plate 10 can be but is not limited to 5nm, 6nm, 7nm, 8nm, 9nm, 10nm, 10.5nm, 11nm, 11.5nm, 12nm, 12.5nm, 13nm, 13.5nm, 14nm, 15nm, 16nm, 17nm, 18nm, 19nm, 20nm, etc.

[0073] Specifically, the roughness Ra2 of the laser film removal area 112 can be but is not limited to 10nm, 11nm, 12nm, 13nm, 14nm, 15nm, 16nm, 17nm, 18nm, 19nm, 20nm, 22nm, 25nm, 28nm, 30nm, 33nm, 35nm, 37nm, 40nm, 42nm, 45nm, 48nm, 50nm, etc.

[0074] Specifically, the difference Ra3-Ra2 between the roughness Ra3 of the coating removal area 113 and the roughness Ra2 of the laser removal area 112 can be but is not limited to 5nm, 6nm, 7nm, 8nm, 9nm, 10nm, 11nm, 12nm, 13nm, 14nm, etc.

[0075] In this embodiment, the roughness Ra1 of the surface of the functional layer 20 away from the glass plate 10 is in the range of 5nm≤Ra1≤20nm; the roughness Ra2 of the laser film removal area 112 is in the range of: 10nm≤Ra2≤50nm, and the difference Ra3-Ra2 between the roughness Ra3 of the coating film removal area 113 and the roughness Ra2 of the laser film removal area 112 is in the range of: Ra3-Ra2≥5nm; in this way, the roughness of the coated glass 100 near the edge area can be larger, which is beneficial to the installation of accessories such as edging and nail pillars when the coated glass 100 is used in vehicles.

[0076] In some embodiments, the visible light transmittance TL1 of the coated glass 100 corresponding to the coating area 111 is less than the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112; the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112 is less than the visible light transmittance TL3 of the coated glass 100 corresponding to the coating film removal area 113.

[0077] In this embodiment, the visible light transmittance TL1 of the coated glass 100 corresponding to the coating area 111 is less than the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112, which means that the laser film removal area 112 has a better film removal effect and thus has a higher visible light transmittance than the coating area 111; in addition, the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112 is less than the visible light transmittance TL3 of the coated glass 100 corresponding to the coating film removal area 113, which means that compared with the laser film removal area 112, the coating film removal area 113 has a better film removal (i.e., removing the functional layer 20) effect. When the functional layer 20 in the laser film removal area 112 is not removed cleanly, the bond energy of the coating material remaining in the laser film removal area 112 is destroyed, and it has higher activity and is more likely to react with water vapor and oxygen in the air, thereby causing corrosion and other erosion phenomena, and then corroding the functional layer 20 in the coating area 111, reducing the service life of the coated glass 100; furthermore, if the laser film removal area 112 is not removed cleanly, when the coated glass 100 is hot-bent, the coating material that is not removed cleanly will absorb heat, thereby making the temperature of the functional layer 20 too high, and the functional layer 20 is easily burned; when the functional layer 20 in the coating film removal area 113 is not removed cleanly, since the coating film removal area 113 is closer to the edge, it is easier for water vapor and oxygen to penetrate, thereby corroding the area The eroded coating material will further erode the functional layer 20 in the coating area 111, and will also reduce the service life of the coated glass 100; the visible light transmittance TL1 of the coated glass 100 corresponding to the coating area 111 of the present application is less than the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112; the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112 is less than the visible light transmittance TL3 of the coated glass 100 corresponding to the coating film removal area 113; this shows that the coating materials in the laser film removal area 112 and the coating film removal area 113 can be better removed, and the functional layer 20 can be protected from erosion and damage by environmental water vapor, oxygen, etc. to the greatest extent.

[0078] In some embodiments, the visible light reflectivity RL2 of the coated glass 100 corresponding to the laser film removal area 112 is greater than the visible light reflectivity RL3 of the coated glass 100 corresponding to the coating film removal area 113, and the visible light reflectivity RL3 of the coated glass corresponding to the coating film removal area is greater than the visible light reflectivity RL1 of the coated glass corresponding to the coating area.

[0079] In this embodiment, the visible light reflectivity RL1 of the coated glass 100 corresponding to the coated area 111 is less than the visible light reflectivity RL2 of the coated glass 100 corresponding to the laser film removal area 112, and the visible light reflectivity RL3 of the coated glass corresponding to the coating film removal area is greater than the visible light reflectivity RL1 of the coated glass corresponding to the coating area, which indicates that the laser film removal area 112 has a better film removal effect, and thus has a higher visible light transmittance than the coating area 111; in addition, the visible light reflectivity RL2 of the coated glass 100 corresponding to the laser film removal area 112 is greater than the visible light reflectivity RL3 of the coated glass 100 corresponding to the coating film removal area 113, which indicates that compared with the laser film removal area 112, the coating film removal area 113 has a better film removal (i.e., removing the functional layer 20) effect. When the functional layer 20 in the laser film removal area 112 is not removed cleanly, the bond energy of the coating material remaining in the laser film removal area 112 is destroyed, and it has higher activity and is more likely to react with water vapor and oxygen in the air, thereby causing corrosion and other erosion phenomena, and then corroding the functional layer 20 in the coating area 111, reducing the service life of the coated glass 100; furthermore, if the laser film removal area 112 is not removed cleanly, it will also cause more significant color difference after the coated glass 100 is hot-bent; when the functional layer 20 in the coating film removal area 113 is not removed cleanly, since the coating film removal area 113 is closer to the edge, it is easier for water vapor and oxygen to penetrate, thereby corroding the coating material in this area, The corroded coating material will further corrode the functional layer 20 in the coating area 111, and will also reduce the service life of the coated glass 100; the visible light reflectivity RL2 of the coated glass 100 corresponding to the laser film removal area 112 of the present application is greater than the visible light reflectivity RL3 of the coated glass 100 corresponding to the coating film removal area 113, and the visible light reflectivity RL3 of the coated glass corresponding to the coating film removal area is greater than the visible light reflectivity RL1 of the coated glass corresponding to the coating area; this means that the coating materials in the laser film removal area 112 and the coating film removal area 113 are removed more thoroughly, which can protect the functional layer 20 from erosion and damage by environmental water vapor, oxygen, etc. to the greatest extent.

[0080] In some embodiments, the visible light absorption rate A1 of the coated glass 100 corresponding to the coating area 111 is greater than the visible light absorption rate A2 of the coated glass 100 corresponding to the laser film removal area 112; the visible light absorption rate A2 of the coated glass 100 corresponding to the laser film removal area 112 is greater than the visible light absorption rate A3 of the coated glass 100 corresponding to the coating film removal area 113.

[0081] In this embodiment, the visible light absorptivity A1 of the coated glass 100 corresponding to the coating area 111 is greater than the visible light absorptivity A2 of the coated glass 100 corresponding to the laser film removal area 112, which indicates that the laser film removal area 112 has a better film removal effect and thus has a higher visible light transmittance than the coating area 111; in addition, the visible light absorptivity A2 of the coated glass 100 corresponding to the laser film removal area 112 is greater than the visible light absorptivity A3 of the coated glass 100 corresponding to the coating film removal area 113, which indicates that the coating film removal area 113 has a better film removal (i.e., removing the functional layer 20) effect than the laser film removal area 112. When the functional layer 20 in the laser film removal area 112 is not removed cleanly, the bond energy of the coating material remaining in the laser film removal area 112 is destroyed, and it has higher activity and is more likely to react with water vapor and oxygen in the air, thereby causing corrosion and other erosion phenomena, and then corroding the functional layer 20 in the coating area 111, reducing the service life of the coated glass 100; furthermore, if the laser film removal area 112 is not removed cleanly, it will also cause more significant color difference after the coated glass 100 is hot-bent; when the functional layer 20 in the coating film removal area 113 is not removed cleanly, since the coating film removal area 113 is closer to the edge, it is easier to penetrate water vapor and oxygen, thereby corroding the coating material in this area, and the corroded coating The film material will further corrode the functional layer 20 in the coating area 111, and will also reduce the service life of the coated glass 100; the visible light absorption rate A1 of the coated glass 100 corresponding to the coating area 111 of the present application is greater than the visible light absorption rate A2 of the coated glass 100 corresponding to the laser film removal area 112; the visible light absorption rate A2 of the coated glass 100 corresponding to the laser film removal area 112 is greater than the visible light absorption rate A3 of the coated glass 100 corresponding to the coating film removal area 113; this means that the coating materials in the laser film removal area 112 and the coating film removal area 113 are removed more thoroughly, which can protect the functional layer 20 from erosion and damage by environmental water vapor, oxygen, etc. to the greatest extent.

[0082] In some embodiments, the color difference value ΔE between the laser film removal area 112 of the coated glass 100 and the coating film removal area 113 of the coated glass 100 is ≤5.

[0083] In other words, the color difference value ΔE between the reflection color of the coated glass 100 corresponding to the laser film removal area 112 and the reflection color of the coated glass 100 corresponding to the coating film removal area 113 is ≤5.

[0084] Specifically, the color difference value between the laser film removal area 112 of the coated glass 100 and the coating film removal area 113 of the coated glass 100 can be but is not limited to ΔE≤5, ΔE≤4.5, ΔE≤4, ΔE≤3.5, ΔE≤3, ΔE≤2.5, ΔE≤2, ΔE≤1.5, ΔE≤1, etc.

[0085] Optionally, the color difference value ΔE can be calculated according to the formula Calculation is performed to obtain; wherein △L, △a, and △b respectively represent the difference between the reflected color of the coated glass 100 corresponding to the laser film removal area 112 and the reflected color of the coated glass 100 corresponding to the coating film removal area 113 on the three axes of L, a, and b. According to the CIE 1976Lab color space, L represents lightness, with a value of 0 to 100; a represents the component from green to red, with a value of -128 to 127; and b represents the component from blue to yellow, with a value of -128 to 127.

[0086] In this embodiment, the color difference value ΔE≤5 between the laser film removal area 112 of the coated glass 100 and the coating film removal area 113 of the coated glass 100, which indicates that the laser film removal area 112 has a good film removal effect, and the overall color difference of the coated glass 100 is smaller, with a better appearance effect.

[0087] In some embodiments, the area ratio of the coating area 111 to the predetermined surface 11 is greater than or equal to 70%. In other words, the functional layer 20 covers at least 70% of the area of ​​the predetermined surface 11.

[0088] Specifically, the area ratio of the coating area 111 to the preset surface 11 may be, but is not limited to, greater than or equal to 70%, greater than or equal to 75%, greater than or equal to 80%, greater than or equal to 85%, greater than or equal to 90%, greater than or equal to 95%, etc.

[0089] In this embodiment, if the area ratio of the coating area 111 to the preset surface 11 is too small, the area of ​​the glass plate 10 covered by the functional layer 20 is too small, thereby reducing the functional realization effect of the coated glass 100, such as the head-up display function, heat insulation function, electric heating function, anti-reflection function, etc.; in addition, after the coated glass 100 is installed in the vehicle, the boundary between the functional layer 20 and the laser film removal area 112 may be easily seen, thereby affecting the appearance of the coated glass 100.

[0090] See also Figure 5 In some embodiments, the glass plate 10 includes a glass layer 12 and a shielding layer 13, the shielding layer 13 is arranged around the periphery of the glass layer 12, the surface of the glass plate 10 having the shielding layer 13 is a preset surface 11, the laser film removal area 112 and the coating film removal area 113 are located on the surface of the shielding layer 13 away from the glass layer 12, and the coating area 111 is partially located on the surface of the shielding layer 13 away from the glass layer 12, and partially located on the surface of the glass layer 12 facing the shielding layer 13.

[0091] Optionally, the glass layer 12 may be, but is not limited to, transparent glass, green glass or gray glass.

[0092] It should be noted that, in other embodiments, Figure 2 As shown, the glass plate 10 may include only the glass layer 12 . The glass plate 10 is transparent glass, and the visible light transmittance of the transparent glass is greater than or equal to 85%, further greater than or equal to 88%, or even greater than or equal to 90%.

[0093] The visible light transmittance of the green glass is greater than or equal to 70%, further greater than or equal to 75%, and even greater than or equal to 80%.

[0094] Wherein, the visible light transmittance of the gray glass is less than or equal to 50%, further less than or equal to 40%, or even less than or equal to 30%.

[0095] It should be noted that the preset surface 11 is partially composed of the surface of the shielding layer 13 facing away from the glass layer 12 , and partially composed of the surface of the glass layer 12 facing the shielding layer 13 .

[0096] Optionally, the shielding layer 13 is an annular structure.

[0097] In this embodiment, the laser film removal area 112 and the coating film removal area 113 are arranged on the shielding layer 13, and the coating film removal area 111 is partially located on the shielding layer 13, so that the laser film removal area 112 and the coating film removal area 113 can be better shielded by the shielding layer 13, and the laser film removal area 112 and the coating film removal area 113 can be better prevented from being visible to the naked eye, so that the coated glass 100 has a better appearance effect.

[0098] The coated glass 100 of the embodiment of the present application can be prepared by the method described in the following embodiments of the present application. In addition, it can also be prepared by other methods. The preparation method of the embodiment of the present application is only one or more preparation methods of the coated glass 100 of the present application, and should not be understood as a limitation on the coated glass 100 provided by the embodiment of the present application.

[0099] See also Figures 6 to 8 The present application also provides a method for preparing the coated glass 100, which includes:

[0100] S201, providing a glass substrate 10', wherein the glass substrate 10' has a surface 11' to be plated, wherein the surface 11' to be plated includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0101] Optionally, before forming the film removal coating 30 ′, the glass plate 10 that has been pre-treated by cutting and edge grinding is cleaned to remove dirt, grease, etc. on the glass surface.

[0102] S202, forming a film removal coating 30' on the second area 113';

[0103] Optionally, an ink coating is used to print an ink layer on the second area 113', and the ink layer is cured to form a film-removing coating 30' to prevent the ink coating from evaporating in the coating chamber and contaminating the coating chamber and further contaminating the coating layer 20' during the subsequent coating process.

[0104] Optionally, the ink layer can be cured while printing, or can be cured after printing. The ink layer can be cured by at least one of UV curing, thermal curing, etc., but is not limited to UV curing. Preferably, the ink layer is cured while printing (UV curing), and a UV lamp is used to cure the ink layer. This can enhance the coating efficiency of the film-removing coating layer 30' while also avoiding jagged edges of the film-removing coating layer 30' caused by the ink not being dry during the conveying process.

[0105] It should be noted that during the curing process of the ink layer, the ink vapor generated by the evaporation of the solvent in the ink layer needs to be removed to prevent the ink vapor from contaminating the non-coating area.

[0106] The printing may be performed by screen printing, inkjet printing, etc. Preferably, the film removal coating 30' may be formed by inkjet printing, so that the edge of the film removal coating 30' is less prone to jaggedness and has higher precision.

[0107] S203, forming a coating layer 20' on the coating area 111, the first area 112' and the film removal coating 30';

[0108] Optionally, the glass substrate 10' provided with the film removal coating 30' is transferred to a coating production line, and a coating layer 20' is formed on the surface of the glass substrate 10' according to process parameters, wherein the coating layer 20' covers at least 70% of the surface area of ​​the glass substrate 10' and covers the film removal coating 30'.

[0109] Optionally, the coating layer 20' can be prepared by, but not limited to, magnetron sputtering. The coating layer 20' can be, but not limited to, at least one of a head-up display function layer, a heat insulation function layer, an anti-reflection function layer, an electric heating function layer, and the like.

[0110] S204, removing the film removal coating 30' and the coating layer 20' on the film removal coating 30', so that the second area 113' forms a coating film removal area 113; and

[0111] S205, using laser to remove the coating layer 20' on the first area 112', so that the first area 112' forms a laser film removal area 112, the coating layer 20' located in the coating area 111 forms a functional layer 20, and the glass substrate 10' forms a glass plate 10, so as to obtain the coated glass 100; wherein the glass plate 10 has a preset surface 11, and the preset surface 11 includes the coating area 111, the laser film removal area 112 and the coating film removal area 113, the laser film removal area 112 is located between the coating area 111 and the coating film removal area 113 and is respectively connected to the coating area 111 and the coating film removal area 113; along the arrangement direction of the coating area 111, the laser film removal area 112 and the coating film removal area 113, the ratio w1 / w2 of the width w1 of the laser film removal area 112 to the width w2 of the coating film removal area 113 is in the range of: 0.005≤w1 / w2≤0.5.

[0112] Optionally, a laser film removal device is used to remove the coating layer 20 ′ on the first area 112 ′, so that the first area 112 ′ forms a laser film removal area 112 , and the coating layer 20 ′ located in the coating area 111 forms a functional layer 20 .

[0113] For descriptions of other aspects of the glass plate 10 , the preset surface 11 , and the functional layer 20 , please refer to the descriptions of the corresponding parts of the above embodiments, which will not be repeated here.

[0114] In the preparation method of the coated glass 100 of the present application, before coating, a film removal coating 30' is first formed on the coating film removal area 113, and then coating is performed. After the coating layer 20' is formed, only the film removal coating 30' needs to be removed to remove the coating material in the coating film removal area 111. The method is simple, the cost is lower, and the coating material on the coating film removal area 113 can be removed more completely. In addition, compared with the solution using a metal cover plate, the present application uses a film removal coating 30' as a cover layer, and the potential difference between the film removal coating 30' and the glass substrate 10' is smaller, which can better reduce the color difference area near the edge of the coating layer 20' near the coating film removal area 113, so that the coated glass 100 has a better appearance effect, can better reduce the area of ​​laser film removal, and reduce the preparation cost of the coated glass 100. In addition, the reduction of the laser film removal area 112 can protect the functional layer 20 from erosion and damage by environmental water vapor, oxygen, etc. to the greatest extent. The preparation method of the coated glass 100 of the present application can not only effectively eliminate the color difference on the surface of the functional layer 20 but also improve the efficiency and quality of film removal by combining film removal coating 30' with laser film removal.

[0115] In some embodiments, the film removal coating 30 ′ has a thickness ranging from 5 μm to 100 μm.

[0116] Specifically, the thickness of the film removal coating 30' may be, but is not limited to, 5 μm, 10 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, etc. Optionally, the thickness of the film removal coating 30' ranges from 10 μm to 90 μm. Optionally, the thickness of the film removal coating 30' ranges from 20 μm to 80 μm.

[0117] In the present embodiment, the thickness of the film removal coating 30' is too thin, which may increase the difficulty of the printing process and be detrimental to the quality control of the film removal coating 30'; the thickness of the film removal coating 30' is too thick, and the potential difference between the film removal coating 30' and the glass plate 10 is too large, so that the area where the color difference of the coating layer 20' near the edge of the film removal coating 30' is too large, thereby increasing the color difference of the functional layer 20 and reducing the appearance effect of the coated glass 100, or increasing the width of the laser for film removal, increasing the width of the laser film removal area 112, reducing the film removal efficiency and increasing the film removal cost; furthermore, with the increase of the laser film removal area 112, the functional layer 20 in this area is usually difficult to completely remove by laser, the bond energy of the unremoved functional layer 20 is destroyed, the activity is increased, and it is easy to react with water vapor and oxygen in the air, thereby causing corrosion and other erosion phenomena, thereby increasing the probability of the functional layer 20 in the coating area 111 (especially the position in contact with the laser film removal area 112) being corroded by water vapor and oxygen.

[0118] In some embodiments, the film removal coating 30' is a water-soluble ink layer, and the raw material components of the water-soluble ink layer include at least one of hydroxymethyl fiber resin, hydroxyethyl fiber resin, hydroxypropyl fiber resin, arabic resin, agarose (AG glue for short), polyvinyl alcohol, polyethylene, sodium polyacrylate, and polyethylene oxalate.

[0119] Optionally, the water-soluble ink layer is formed by inkjet printing of water-soluble ink and curing.

[0120] Optionally, the raw material components of the water-soluble ink layer further include a first solvent, and the first solvent may be, but is not limited to, at least one of water (such as deionized water) and ethanol (anhydrous ethanol).

[0121] Optionally, the raw material components of the water-soluble ink layer further include at least one of a wetting agent, a defoaming agent (BYK), a leveling agent, a dispersant, a slip agent, and the like.

[0122] It should be noted that the water-soluble ink layer is suitable for a functional layer 20 that is relatively water-resistant, that is, a functional layer 20 that is not easily oxidized during the water washing process, such as a head-up display functional layer, an anti-reflection functional layer, etc., which are arranged on the surface of the laminated glass facing the interior of the vehicle (that is, the fourth surface of the laminated glass, or the surface of the inner glass plate 10 facing away from the outer glass plate 10).

[0123] In this embodiment, the film removal coating 30' made of water-soluble ink can be washed with water to be removed. The removal method is simple and the film removal coating 30' can be removed quickly, so that the film removal area 113 of the coating can be quickly removed, thereby improving the efficiency of film removal.

[0124] In some embodiments, the film removal coating 30' is a hot melt ink layer, and the raw material components of the hot melt ink layer include a first reactant, a second reactant and an initiator; the first reactant includes at least one of a polyester acrylate prepolymer and an epoxy acrylate prepolymer; the second reactant includes at least one of an acrylate monomer and an acrylate prepolymer.

[0125] Optionally, the hot melt ink layer is formed by inkjet printing of hot melt ink and curing.

[0126] Optionally, the initiator may be, but is not limited to, at least one of a thermal initiator and a photoinitiator.

[0127] Optionally, the raw material components of the hot melt ink further include an infrared absorber and a second solvent. Optionally, the second solvent may be, but is not limited to, one or more of ethyl acetate, propyl acetate, butyl acetate, cyclohexanone, propylene glycol methyl ether, propylene glycol methyl ether acetate, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether, isopropyl alcohol, butanone, methyl butanone, etc.

[0128] Optionally, the hot melt ink can be removed at a temperature at least above 560°C.

[0129] It should be noted that the hot-melt ink layer is suitable for functional layers 20 that are relatively water-inresistant and easily oxidized in water, such as the functional layer 20 located between the inner glass plate 10 and the outer glass plate 10 of the laminated glass (i.e., the functional layer 20 on the second surface and the third surface), such as the heat insulation functional layer, the electric heating functional layer, etc.; in addition, the hot-melt ink is also suitable for functional layers 20 that are water-resistant and not easily oxidized in water, such as the head-up display functional layer, the anti-reflection functional layer, etc., which are arranged on the surface (fourth surface) of the inner glass plate 10 of the laminated glass away from the outer glass plate 10.

[0130] See also Fig. 9 The present application also provides a method for preparing the coated glass 100, which includes:

[0131] S301, providing a glass substrate 10', wherein the glass substrate 10' has a surface 11' to be plated, wherein the surface 11' to be plated includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0132] S302, forming a film removal coating 30' on the second area 113';

[0133] S303, forming a coating layer 20' on the coating area 111, the first area 112' and the film removal coating 30';

[0134] S304, removing the film removal coating 30' and the coating layer 20' on the film removal coating 30', so that the second area 113' forms a coating film removal area 113;

[0135] S305, using laser to remove the coating layer 20' on the first area 112', so that the first area 112' forms a laser coating removal area 112, the coating layer 20' located in the coating area 111 forms a functional layer 20, and the glass substrate 10' forms a glass plate 10, thereby obtaining the coated glass 100; and

[0136] S306, hot bending the coated glass 100 at a temperature greater than or equal to 560°C.

[0137] Specifically, the temperature of hot bending forming can be, but is not limited to, 560°C, 570°C, 580°C, 590°C, 600°C, 610°C, 620°C, 630°C, etc.

[0138] It should be noted that when the film-removing coating layer 30 ′ is a water-soluble ink layer, there is no particular order for S305 and S306 , and S305 can be performed first and then S306 , or S306 can be performed first and then S305 .

[0139] When the film-removing coating 30 ′ is a hot-melt ink layer, S304 and S306 can be performed simultaneously, and S304 and S306 can be performed first, and then S305; or S305 can be performed first, and then S304 and S306.

[0140] In this embodiment, the coated glass 100 can be formed into a curved structure through hot bending, so as to better match the shape of the vehicle and improve the appearance of the coated glass 100 and the vehicle.

[0141] The coated glass 100 of the present application is further described below through specific embodiments.

[0142] Example 1

[0143] The coated glass 100 of this embodiment is prepared by the following steps:

[0144] (1) providing a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 91% as a glass substrate 10', wherein the glass substrate 10' has a surface to be plated 11', wherein the surface to be plated 11' includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0145] (2) forming a film removal coating 30' on the second area 113';

[0146] (3) sequentially coating three silver nanolayers on the coating area 111, the first area 112' and the film removal coating 30' to form a coating layer 20';

[0147] (4) removing the film removal coating 30' and the coating layer 20' on the film removal coating 30', so that the second area 113' forms a coating film removal area 113; and

[0148] (5) removing the coating layer 20' on the first area 112' by laser, so that the first area 112' forms a laser coating removal area 112, the coating layer 20' located in the coating area 111 forms a functional layer 20, and the glass substrate 10' forms a glass plate 10, thereby obtaining the coated glass 100; and

[0149] (6) The coated glass 100 is heat-bent at a temperature of 580° C.

[0150] The coated glass 100 obtained in Example 1 was subjected to various performance tests:

[0151] (1) Roughness: Measured using a commercially available step profiler.

[0152] (2) Visible light transmittance TL, visible light reflectance RL, and visible light absorptivity A: measured and calculated using a spectrophotometer in accordance with ISO13837.

[0153] (3) Reflected color: measured based on CIE1976, D65 light source.

[0154] Various parameters of the coated glass 100 of Example 1 are shown in Table 1 below:

[0155] Table 1: Performance parameters of coated glass 100 of Example 1

[0156] Example 1 Coating area Laser film removal area Coating removal area Roughness Ra 12.7nm 14.8nm 21.6nm Visible light transmittance TL 80.53％ 88.05％ 90.71％ Visible light reflectance RL 6.67％ 9.83％ 8.4％ Visible light absorption rate A 12.8％ 2.12％ 0.89％ Reflection Color L / 37.62 34.84 Reflection color a / -0.71 -0.34 Reflection color b / -2.13 -0.66

[0157] Example 2

[0158] The coated glass 100 of this embodiment is prepared by the following steps:

[0159] (1) providing a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 91% as a glass substrate 10', wherein the glass substrate 10' has a surface to be plated 11', wherein the surface to be plated 11' includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0160] (2) forming a film removal coating 30' on the second area 113';

[0161] (3) sequentially coating three silver nanolayers on the coating area 111, the first area 112' and the film removal coating 30' to form a coating layer 20';

[0162] (4) removing the film removal coating 30' and the coating layer 20' on the film removal coating 30', so that the second area 113' forms a coating film removal area 113; and

[0163] (5) removing the coating layer 20' on the first area 112' by laser, so that the first area 112' forms a laser coating removal area 112, the coating layer 20' located in the coating area 111 forms a functional layer 20, and the glass substrate 10' forms a glass plate 10, thereby obtaining the coated glass 100; and

[0164] (6) The coated glass 100 is heat-bent at a temperature of 580° C.

[0165] Various performance tests were performed on the coated glass 100 obtained in Example 2, and the test results are shown in Table 2 below:

[0166] Table 2: Performance parameters of coated glass 100 of Example 2

[0167]

[0168]

[0169] From the test results of Example 1 and Example 2, it can be seen that the coating film removal area 113 and the laser film removal area 112 both have good film removal effects, and the film removal effect of the coating film removal area 113 is better than that of the laser film removal area 112, so that the functional layer 20 can be protected to the greatest extent from corrosion damage by environmental water vapor, oxygen, etc. In addition, the laser film removal area 112 and the coating film removal area 113 both have small color difference, and the color difference values ​​of both are small.

[0170] In addition, it can be seen from the test results of Example 1 and Example 2 that the roughness Ra1 of the surface of the functional layer 20 away from the glass plate 10 is less than or equal to the roughness Ra2 of the laser film removal area 112; the roughness Ra2 of the laser film removal area 112 is less than the roughness Ra3 of the coating film removal area 113. The visible light transmittance TL1 of the coated glass 100 corresponding to the coating area 111 is less than the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112; the visible light transmittance TL2 of the coated glass 100 corresponding to the laser film removal area 112 is less than the visible light transmittance TL3 of the coated glass 100 corresponding to the coating film removal area 113. The visible light reflectivity RL2 of the coated glass 100 corresponding to the laser film removal area 112 is greater than the visible light reflectivity RL3 of the coated glass 100 corresponding to the coating film removal area 113, and the visible light reflectivity RL3 of the coated glass 100 corresponding to the coating film removal area 113 is greater than the visible light reflectivity RL1 of the coated glass 100 corresponding to the coating area 111. The visible light absorptivity A1 of the coated glass 100 corresponding to the coating area 111 is greater than the visible light absorptivity A2 of the coated glass 100 corresponding to the laser film removal area 112; the visible light absorptivity A2 of the coated glass 100 corresponding to the laser film removal area 112 is greater than the visible light absorptivity A3 of the coated glass 100 corresponding to the coating film removal area 113.

[0171] Example 3

[0172] The coated glass 100 of this embodiment is prepared by the following steps:

[0173] (1) providing a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 91% as a glass substrate 10', wherein the glass substrate 10' has a surface to be plated 11', wherein the surface to be plated 11' includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0174] (2) forming a film removal coating 30' on the second area 113' using a water-soluble ink;

[0175] (3) coating the head-up display functional layer on the coating area 111, the first area 112' and the film removal coating 30' as the coating layer 20';

[0176] (4) removing the film removal coating 30' and the coating layer 20' on the film removal coating 30', so that the second area 113' forms a coating film removal area 113; and

[0177] (5) removing the coating layer 20' on the first area 112' by laser, so that the first area 112' forms a laser coating removal area 112, the coating layer 20' located in the coating area 111 forms a functional layer 20, and the glass substrate 10' forms a glass plate 10, thereby obtaining the coated glass 100; and

[0178] (6) The coated glass 100 is heat-bent at a temperature of 580° C.

[0179] Example 4

[0180] The coated glass 100 of this embodiment is prepared by the following steps:

[0181] (1) providing a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 91% as a glass substrate 10', wherein the glass substrate 10' has a surface to be plated 11', wherein the surface to be plated 11' includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0182] (2) forming a film-removing coating 30' on the second area 113' using hot melt ink;

[0183] (3) depositing a head-up display functional layer as a coating layer 20' on the coating area 111, the first area 112' and the film removal coating 30';

[0184] (4) removing the coating layer 20' on the first area 112' by laser, so that the first area 112' forms a laser coating removal area 112; and

[0185] (5) The coated glass 100 is subjected to hot bending at a temperature of 580° C. During the forming process, the film removal coating 30′ and the coating layer 20′ on the film removal coating 30′ are removed, so that the second area 113′ forms a coating film removal area 113, the coating layer 20′ located in the coating area 111 forms a functional layer 20, and the glass substrate 10′ forms a glass plate 10, thereby obtaining the coated glass 100.

[0186] Example 5

[0187] The coated glass 100 of this embodiment is prepared by the following steps:

[0188] (1) providing a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 91% as a glass substrate 10', wherein the glass substrate 10' has a surface to be plated 11', wherein the surface to be plated 11' includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0189] (2) forming a film-removing coating 30' on the second area 113' using hot melt ink;

[0190] (3) sequentially coating three silver nanolayers on the coating area 111, the first area 112' and the film removal coating 30' to form a coating layer 20';

[0191] (4) removing the coating layer 20' on the first area 112' by laser, so that the first area 112' forms a laser coating removal area 112; and

[0192] (5) The coated glass 100 is subjected to hot bending at a temperature of 580° C. During the forming process, the film removal coating 30′ and the coating layer 20′ on the film removal coating 30′ are removed, so that the second area 113′ forms a coating film removal area 113, the coating layer 20′ located in the coating area 111 forms a functional layer 20, and the glass substrate 10′ forms a glass plate 10, thereby obtaining the coated glass 100.

[0193] Comparative Example 1

[0194] The coated glass 100 of this comparative example 1 is prepared by the following steps:

[0195] (1) providing a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 91% as a glass substrate 10', wherein the glass substrate 10' has a surface to be plated 11', wherein the surface to be plated 11' includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0196] (2) using a stainless steel cover plate to shield the second area 113';

[0197] (3) depositing a head-up display functional layer as a coating layer 20' on the coating area 111, the first area 112' and the stainless steel cover plate;

[0198] (4) removing the stainless steel cover plate and the coating layer 20' on the stainless steel cover plate, so that the second area 113' forms a cover plate coating removal area; and

[0199] (5) removing the coating layer 20' on the first area 112' by laser, so that the first area 112' forms a laser coating removal area 112, and the coating layer 20' located in the coating area 111 forms a functional layer 20; and

[0200] (6) Hot bending is performed at a temperature of 580°C.

[0201] Comparative Example 2

[0202] The coated glass 100 of this comparative example 2 is prepared by the following steps:

[0203] (1) providing a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 91% as a glass substrate 10', wherein the glass substrate 10' has a surface to be plated 11', wherein the surface to be plated 11' includes a coating area 111, a first area 112' and a second area 113', wherein the first area 112' is located between the coating area 111 and the second area 113' and is respectively connected to the coating area 111 and the second area 113';

[0204] (2) using a stainless steel cover plate to shield the second area 113';

[0205] (3) depositing three silver nanolayers in sequence on the coating area 111, the first area 112' and the stainless steel cover plate as a coating layer 20';

[0206] (4) removing the stainless steel cover plate and the coating layer 20' on the stainless steel cover plate, so that the second area 113' forms a cover plate coating removal area; and

[0207] (5) removing the coating layer 20' on the first area 112' by laser, so that the first area 112' forms a laser coating removal area 112, and the coating layer 20' located in the coating area 111 forms a functional layer 20; and

[0208] (6) Hot bending is performed at a temperature of 580°C.

[0209] Various performance tests were performed on Examples 3 to 5, Comparative Examples 1 and 2, and the test results are shown in Table 3 below.

[0210] Table 3: Performance parameters of coated glass 100 of Examples 3 to 5, Comparative Examples 1 and 2

[0211]

[0212] It can be seen from the test results of Examples 3 to 5 that the film removal coating 30' of the present application is used for film removal, so that the color difference area at the edge of the functional layer 20 obtained is narrower, and the area requiring laser film removal is narrower, which can reduce the area of ​​laser film removal and reduce the cost of laser film removal. In addition, the film removal coating 30' of the present application is used for film removal, and the laser film removal area 112 can also be removed more cleanly and the film removal effect is better.

[0213] Compared with Comparative Example 1, Example 3 adopts a cover plate film removal method in Comparative Example 1, while Example 34 adopts water-soluble ink as the film removal coating 30'. After the coating is completed, the film removal coating 30' and the coating layer 20' on the film removal coating 30' can be removed by cleaning. Since the film removal coating 30' formed by the water-soluble ink is thinner than the cover plate, the boundary color change area of ​​the functional layer 20 near the film removal coating 30' is narrower, thereby greatly reducing the area of ​​laser film removal, reducing the laser film removal time, and improving the film removal production efficiency.

[0214] Compared with comparative example 1, embodiment 4 adopts hot melt ink as the film removal coating 30', and compared with comparative example 1 which adopts the method of film removal of the cover plate, embodiment 4 adopts hot melt ink as the film removal coating 30'. After the coating is completed, the film removal coating 30' and the coating layer 20' on the film removal coating 30' can be removed through a high-temperature bending molding process. Since the film removal coating 30' formed by the hot melt ink is thinner than the cover plate, the boundary color change area of ​​the functional layer 20 close to the film removal coating 30' is narrower, thereby greatly reducing the area of ​​laser film removal, reducing the laser film removal time, and improving the film removal production efficiency.

[0215] Compared with Comparative Example 2, Example 5 adopts hot melt ink as the film removal coating 30', and compared with Comparative Example 2 which adopts the method of film removal by the cover plate, Example 5 adopts hot melt ink as the film removal coating 30'. After the coating is completed, the film removal coating 30' and the coating layer 20' on the film removal coating 30' can be removed through a high-temperature bending molding process. Since the film removal coating 30' formed by the hot melt ink is thinner than the cover plate, the boundary color change area of ​​the functional layer 20 close to the film removal coating 30' is narrower, thereby greatly reducing the area of ​​laser film removal, reducing the laser film removal time, and improving the film removal production efficiency.

[0216] From the test results of Examples 3 to 5, Comparative Examples 1 and 2, it can be seen that part of the coating layer 20' is not suitable for laser film removal, and the efficiency of laser burning the coating layer 20' is very low. Therefore, using the film removal coating 30' for film removal can significantly reduce the film removal time and improve the film removal efficiency.

[0217] See also Fig.10The embodiment of the present application further provides a laminated glass 200, which includes an outer glass plate 210, an adhesive layer 220 and an inner glass plate 230, wherein the adhesive layer 220 is arranged on one side of the outer glass plate 210; the inner glass plate 230 is arranged on the side of the adhesive layer 220 away from the outer glass plate 210, and at least one of the outer glass plate 210 and the inner glass plate 230 is the coated glass 100 described in the embodiment of the present application.

[0218] like Fig.11 As shown, in some embodiments, the outer glass plate 210 is a coated glass 100, and the functional layer 20 is disposed facing the adhesive layer 220. In other words, the functional layer 20 is disposed closer to the adhesive layer 220 than the glass plate 10. In this embodiment, the inner glass plate 230 may include a glass layer 12 and a shielding layer 13, wherein the shielding layer 13 is disposed around the periphery of the glass layer 12, and the shielding layer 13 is farther from the outer glass plate 210 than the glass layer 12.

[0219] like Fig.12 As shown, in other embodiments, the inner glass plate 230 is a coated glass 100, and the functional layer 20 is disposed away from the adhesive layer 220. In other words, the functional layer 20 is disposed farther from the adhesive layer 220 than the glass plate 10. In this embodiment, the outer glass plate 210 may include a glass layer 12 and a shielding layer 13, wherein the shielding layer 13 is disposed around the periphery of the glass layer 12, and the shielding layer 13 is closer to the adhesive layer 220 than the glass layer 12.

[0220] like Fig.13 As shown, in other embodiments, the outer glass plate 210 is a coated glass 100, and the functional layer 20 is disposed facing the adhesive layer 220. In other words, the functional layer 20 is disposed closer to the adhesive layer 220 than the glass plate 10. In this embodiment, the outer glass plate 210 and the inner glass plate 230 both include a glass layer 12 and a shielding layer 13, and the shielding layer 13 is disposed around the periphery of the glass layer 12. The shielding layer 13 of the outer glass plate 210 is disposed facing the adhesive layer 220, and the shielding layer 13 of the inner glass plate 230 is disposed away from the outer glass plate 210.

[0221] The laminated glass 200 of the embodiment of the present application includes a coated glass 100, and the coated glass 100 includes a glass plate 10 and a functional layer 20, wherein the glass plate 10 has a preset surface 11, and the preset surface 11 includes a coating area 111, a laser film removal area 112, and a coating film removal area 113, and the ratio w1 / w2 of the width w1 of the laser film removal area 112 to the width w2 of the coating film removal area 113 is in the range of: 0.005≤w1 / w2≤0.5; by designing the ratio of the width of the laser film removal area 112 to the coating film removal area 113 of the glass plate 10, the obtained coated glass 100 can have smaller color difference and better appearance effect; in addition, the functional layer 20 of the coated glass 100 can be better prevented from being corroded by water vapor and oxygen, thereby improving the service life of the coated glass 100.

[0222] See also Fig.14 The embodiment of the present application further provides a vehicle 300 , which includes a vehicle body 310 and the coated glass 100 described in the embodiment of the present application or the laminated glass 200 described in the embodiment of the present application, and the coated glass 100 or the laminated glass 200 is installed on the vehicle body 310 .

[0223] The vehicle 300 in the embodiment of the present application may be, but is not limited to, a car, a sedan, a bus, a van, a truck, a train or other means of transportation.

[0224] Optionally, the coated glass 100 or the laminated glass 200 can be used as a front windshield, side window glass, rear windshield, sunroof glass, etc. of the vehicle 300.

[0225] Optionally, the coated glass 100 or the laminated glass 200 can be directly fixed on the vehicle body 310, or can be movably arranged on the vehicle body 310. When the coated glass 100 or the laminated glass 200 can be used as the front windshield, rear windshield, sunroof glass, etc. of the vehicle 300, the coated glass 100 or the laminated glass 200 can be fixed on the vehicle body 310. When the coated glass 100 or the laminated glass 200 is used as the side window glass of the vehicle 300, the coated glass 100 or the laminated glass 200 can be movably arranged on the vehicle body 310, so that the vehicle window corresponding to the coated glass 100 or the laminated glass 200 can be opened and closed.

[0226] Mentioning "embodiment" and "implementation method" in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrases in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the various embodiments of the present application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present application, if there is no contradiction between them.

[0227] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the above preferred implementation modes, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A coated glass, characterized in that: include: A glass plate, wherein the glass plate has a preset surface, wherein the preset surface includes a coating area, a laser film removal area, and a coating film removal area, wherein the laser film removal area is located between the coating area and the coating film removal area and respectively connects the coating area and the coating film removal area; along the arrangement direction of the coating area, the laser film removal area, and the coating film removal area, a ratio w1 / w2 of a width w1 of the laser film removal area to a width w2 of the coating film removal area is in a range of: 0.005≤w1 / w2≤0.5; and A functional layer is disposed on the preset surface of the glass plate and covers the coating area.

2. The coated glass according to claim 1, characterized in that: The width w1 of the laser film removal area is in the range of 1 mm≤w1≤8 mm.

3. The coated glass according to claim 1, characterized in that: The width w2 of the coating film removal zone is in the range of 5mm≤w2≤400mm.

4. The coated glass according to claim 1, characterized in that: The roughness Ra1 of the surface of the functional layer facing away from the glass plate is less than or equal to the roughness Ra2 of the laser film removal area; the roughness Ra2 of the laser film removal area is less than the roughness Ra3 of the coating film removal area.

5. The coated glass according to claim 4, characterized in that: The roughness Ra1 of the surface of the functional layer away from the glass plate is in the range of 5nm≤Ra1≤20nm; the roughness Ra2 of the laser film removal area is in the range of 10≤Ra2≤50nm, and the difference Ra3-Ra2 between the roughness Ra3 of the coating film removal area and the roughness Ra2 of the laser film removal area is in the range of Ra3-Ra2≥5nm.

6. The coated glass according to claim 1, characterized in that: The visible light transmittance TL1 of the coated glass corresponding to the coating area is less than the visible light transmittance TL2 of the coated glass corresponding to the laser film removal area; the visible light transmittance TL2 of the coated glass corresponding to the laser film removal area is less than the visible light transmittance TL3 of the coated glass corresponding to the coating film removal area.

7. The coated glass according to claim 1, characterized in that: The visible light reflectivity RL2 of the coated glass corresponding to the laser film removal area is greater than the visible light reflectivity RL3 of the coated glass corresponding to the coating film removal area, and the visible light reflectivity RL3 of the coated glass corresponding to the coating film removal area is greater than the visible light reflectivity RL1 of the coated glass corresponding to the coating area.

8. The coated glass according to claim 1, characterized in that: The visible light absorptivity A1 of the coated glass corresponding to the coating area is greater than the visible light absorptivity A2 of the coated glass corresponding to the laser film removal area; the visible light absorptivity A2 of the coated glass corresponding to the laser film removal area is greater than the visible light absorptivity A3 of the coated glass corresponding to the coating film removal area.

9. The coated glass according to claim 1, characterized in that: The color difference value ΔE of the coated glass corresponding to the laser film removal area and the coated glass corresponding to the coating film removal area is ≤5; or, The color difference value ΔE of the coated glass corresponding to the laser film removal area and the coated glass corresponding to the coating film removal area is ≤4.5; or, The color difference value ΔE of the coated glass corresponding to the laser film removal area and the coated glass corresponding to the coating film removal area is ≤3.

5.

10. The coated glass according to any one of claims 1 to 9, characterized in that: The area ratio of the coating area to the preset surface is greater than or equal to 70%; or, The area ratio of the coating area to the preset surface is greater than or equal to 80%; or, The area ratio of the coating area to the preset surface is greater than or equal to 90%; or, The area ratio of the coating area to the preset surface is greater than or equal to 95%.

11. The coated glass according to any one of claims 1 to 9, characterized in that: The glass plate includes a glass layer and a shielding layer, wherein the shielding layer is arranged around the periphery of the glass layer, and the surface of the glass plate having the shielding layer is a preset surface. The laser film removal area and the coating film removal area are located on the surface of the shielding layer away from the glass layer, and the coating area is partially located on the surface of the shielding layer away from the glass layer, and partially located on the surface of the glass layer facing the shielding layer.

12. A method for preparing coated glass, characterized in that: include: A glass substrate is provided, wherein the glass substrate has a surface to be plated, wherein the surface to be plated includes a coating area, a first area, and a second area, wherein the first area is located between the coating area and the second area and is respectively connected to the coating area and the second area; forming a film-removing coating on the second area; forming a coating layer on the coating area, the first area and the film removal coating; removing the film removal coating and the coating layer on the film removal coating, so that the second area forms a coating film removal area; and The coating layer on the first area is removed by laser so that the first area forms a laser film removal area, the portion of the coating layer located in the coating area forms a functional layer, and the glass substrate forms a glass plate to obtain the coated glass; wherein the glass plate has a preset surface, the preset surface includes a coating area, a laser film removal area and a coating film removal area, the laser film removal area is located between the coating area and the coating film removal area and respectively connects the coating area and the coating film removal area; along the arrangement direction of the coating area, the laser film removal area and the coating film removal area, the ratio w1 / w2 of the width w1 of the laser film removal area to the width w2 of the coating film removal area is in the range of: 0.005≤w1 / w2≤0.

5.

13. The method for preparing coated glass according to claim 12, characterized in that: The film removing coating has a thickness ranging from 5 μm to 100 μm.

14. The method for preparing coated glass according to claim 12, characterized in that: The film-removing coating is a water-soluble ink layer, and the raw material components of the water-soluble ink layer include at least one of hydroxymethyl fiber resin, hydroxyethyl fiber resin, hydroxypropyl fiber resin, arabic resin, agarose, polyvinyl alcohol, polyethylene, sodium polyacrylate, and polyethylene oxalate.

15. The method for preparing coated glass according to claim 12, characterized in that: The film removal coating is a hot melt ink layer, and the raw material components of the hot melt ink layer include a first reactant, a second reactant and an initiator; the first reactant includes at least one of a polyester acrylate prepolymer and an epoxy acrylate prepolymer; the second reactant includes at least one of an acrylate monomer and an acrylate prepolymer.

16. The method for preparing coated glass according to any one of claims 12 to 15, characterized in that: The preparation method further comprises: The coated glass is heat-bent at a temperature greater than or equal to 560° C.

17. A laminated glass, characterized in that: include: External glass panels; an adhesive layer, the adhesive layer being disposed on one side of the outer glass plate; as well as An inner glass plate, wherein the inner glass plate is arranged on a side of the adhesive layer away from the outer glass plate, and at least one of the outer glass plate and the inner glass plate is the coated glass according to any one of claims 1 to 11.

18. A vehicle, characterized in that: include: Car body; as well as The coated glass according to any one of claims 1 to 11 or the laminated glass according to claim 17, wherein the coated glass or the laminated glass is installed on the vehicle body.

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