EA044432B1 - GLASS - Google Patents

Description

Field of technology to which the invention relates

The invention relates to glass.

State of the art

In recent years, in order to improve vehicle safety, etc. Vehicles are being developed that have automatic collision avoidance features against a vehicle or pedestrian ahead. Such a vehicle has an information device, such as a visible light camera, an infrared sensor, or the like, installed in the vehicle for transmitting and receiving information about road conditions and the like. through the glass of a vehicle (eg, windshield) (see, for example, Patent Document 1).

Information is transmitted and received, for example, through an open portion provided in a colored ceramic layer formed on the inside of the vehicle glass.

Prior Art Documents Patent Documents

Patent Document 1. Published Japanese translation of PCT International Patent Application No. 2011 -510893.

Essence of the invention Problems solved by the invention

However, due to the influence of the colored ceramic layer, in some cases, the optical distortion of the glass in the open part is deteriorated, and due to this, the information collection efficiency of the information device is reduced.

The present invention has been made in view of the above, and its object is to provide glass with reduced optical distortion in the open part through which an information device transmits and receives information.

Problem Solving Tools

The present glass is glass intended for installation in a vehicle and includes: a glass element; a colored ceramic layer provided in a predetermined area of the glass element;

an open information collection portion, one or more sides of which is in contact with the painted ceramic layer in a plan view; and a plate-shaped member spanning the open portion and extending beyond each of the one or more sides so as to span the colored ceramic layer, wherein the one or more sides includes a top side that becomes a top side once the glass is installed in the vehicle, the amount the overlap between the painted ceramic layer and the plate-shaped element on the outside of the upper side is greater than or equal to 3.5 mm.

Beneficial effects of the invention

According to one embodiment of the present invention, glass in which optical distortion is reduced in the open portion through which the information device transmits and receives information can be provided.

Brief description of drawings

Fig. 1 is a plan view illustrating glass according to the first embodiment;

fig. 2 includes enlarged views illustrating glass according to the first embodiment;

fig. 3 includes enlarged views illustrating glass according to the second embodiment;

fig. 4 includes partially enlarged views of areas near the open portion according to a modified example of the first and second embodiments;

fig. 5 is a top view of the evaluation glass;

fig. 6 is a cross-section of glass for evaluation;

fig. 7 is a diagram (Part 1) illustrating the evaluation of optical distortion; and figs. 8 includes diagrams (Part 2) illustrating the evaluation of optical distortion.

Method for carrying out the invention

Next, embodiments of the present invention will be described with reference to the drawings. Throughout the drawings, like elements are designated by the same reference numerals, and duplicate descriptions thereof may be omitted. In addition, in some drawings, the size and shape may be partially exaggerated to facilitate understanding of the present invention.

It should be noted that although a windshield for a vehicle will be used as an example for description here, the application is not per se limited, and the glass according to the present embodiment can also be applied to window glass other than a windshield such as a side glass , rear window, etc. for a vehicle. Moreover, the glass according to the present embodiment may be located in an area different from that in which window glass is traditionally located, such as in a side mullion

- 1 044432 or bumper.

In addition, in the following description, it is assumed that top view refers to viewing a predetermined area of glass in a direction perpendicular to the main surface of the glass, and planar shape refers to the shape of a predetermined area of glass viewed in a direction perpendicular to the main surface of the glass.

First embodiment.

Fig. 1 is a plan view illustrating glass according to the first embodiment, and schematically illustrates a state in which the side of the glass plate 112 faces the drawing plane. Fig. 2 includes enlarged views illustrating glass according to the first embodiment; in particular, FIG. 2A is an enlarged view close to the open portion 13 of FIG. 1, and fig. 2B is a sectional view taken along line AA in FIG. 2A.

In fig. 1 and 2, for ease of description, the glass 10 is illustrated without its actual curved shape.

As illustrated in FIG. 1 and 2, glass 10 is a vehicle-mounted glass and includes a glass element 11, a colored ceramic layer 12, an open portion 13, a plate-shaped element 14, and an adhesive layer 15. The open portion 13 is illustrated as a flat isosceles trapezoid. .

It should be noted that in the following description regarding the glass element 11, reference numeral 111 denotes the top edge, reference numeral 112 denotes the bottom edge, reference numeral 11 ₃ denotes the left edge, and reference numeral 11 ₄ denotes the right edge. Here, in the case where the glass 10 is attached to a right-hand drive vehicle, the upper edge corresponds to the roof side edge of the vehicle; the bottom edge corresponds to the edge on the engine compartment side; the left edge corresponds to the edge on the front passenger side of the seat; and the right edge corresponds to the edge on the driver's side.

The glass element 11 is laminated glass having an intermediate layer 113 between the glass plate 111 on the outside of the vehicle and the glass plate 112c on the inside of the vehicle. The glass plate 112 faces and is secured to the glass plate 111 by an intermediate layer 113. The intermediate layer 113 may be formed from multiple intermediate layers.

The colored ceramic layer 12 is provided in a predetermined area of the glass member 11. The colored ceramic layer 12 is provided, for example, on the surface 112a on the inside of the glass plate 112. The colored ceramic layer 12 may be provided on the surface 112a on the inside of the glass plate 112, as well as on surface on the inside of the glass plate 111. The test area A described in JIS R3212 (2015) is designated in the glass member 11, and the colored ceramic layer 12 is located outside the test area A in the plan view. It should be noted that the surface 112a on the inside of the glass plate 112 is the main surface of the glass 10.

The colored ceramic layer 12 includes, for example, an area 121 formed along the upper edge 111 of the glass element 11; an area 12 ₂ formed along the lower edge 112; an area 12 ₃ formed along the left edge 11 ₃ ; an area 12 ₄ formed along the right edge 11 ₄ ; and a protruding portion 12 ₅ protruding from the region 121 toward the center of the glass member 11 in the plan view. The flat shape of the protruding portion 12 ₅ is, for example, an isosceles trapezoid, a rectangle, a sector of a circle, a semicircle, and the like.

The colored ceramic layer 12 is an opaque layer and is black in color, although not limited to black as long as it provides low transmittance to visible and ultraviolet light. The presence of an opaque colored ceramic layer 12 in the glass element 11 can prevent decomposition due to ultraviolet radiation of the elements, including an adhesive element such as urethane for holding the peripheral portion of the glass element 11 attached to the body, an adhesive element for attaching the device mounting bracket to the glass element 11, etc.

The colored ceramic layer 12 can be formed, for example, by applying a ceramic colored paste containing a fusible glass frit containing a black pigment to a glass surface by screen printing or the like, and baking it; but in essence it is not limited.

The thickness of the colored ceramic layer 12 is preferably 20 µm or less, and more preferably 15 µm or less.

The open portion 13 is an area through which a data device that operates with visible light, such as a visible light camera or light sensor, or a data device that operates with infrared light (for example, wavelength 905 or 1550 nm), such as a LiDAR (laser rangefinder, lidar), receives information. In other words, when the glass 10 is installed in the vehicle, the information device may be located on the inside

- 2 044432 side of the open part 13.

It is preferable that the visible light transparency of the glass 10 in the open portion 13 is greater than or equal to 70%. Such a range can improve the information collection performance of an information device that processes visible light, such as a visible light camera. It is also preferable that the glass 10 in the open portion 13 has an optical transmittance greater than or equal to 90% at a wavelength of 905 nm or an optical transmittance greater than or equal to 80% at a wavelength of 1550 nm. This range can improve the information collection performance of an information device that processes infrared light (eg, 905 nm or 1550 nm wavelength), such as lidar. It should be noted that transparency is spectral transparency measured in accordance with the measurement method defined in JIS R3106 (1998).

The open portion 13 has four sides in contact with the colored ceramic layer 12. Specifically, the open portion 13 includes an upper side 13a, which becomes an upper side (the side of the upper edge 111) after installing the glass 10 in the vehicle; a lower side 13b opposite the upper side 13a, between which there is an open part 13; a side 13c connected to one end of each of the upper side 13a and the lower side 13b; and a side side 13d connected to the other end of each of the top side 13a and the bottom side 13b.

In the example in FIG. 1 and 2, although the flat shape of the open portion 13 is an isosceles trapezoid, it is not particularly limited, and the flat shape of the open portion 13 may be a rectangle, a sector of a circle, a semicircle, or the like. Moreover, the open portion 13 may have a shape that will be described later with reference to FIG. 4, etc. Moreover, each side contacting the colored ceramic layer 12 is not limited to a straight line, but may be a curved line or a line in which straight lines and curved lines are mixed.

The area of the open part 13 is, for example, 1500 mm ² or more. When the area of the open part 13 is greater than or equal to 1500 mm ² , the area necessary for receiving information by an information device located on the inside of the open part 13 can be provided. The area of the open part 13 can be greater than or equal to 3000, greater than or equal to 4500, greater than or equal to 6000, or greater than or equal to 9000 mm ² .

The plate-shaped element 14 is an element provided for reducing optical distortion of the glass 10 in the open part 13, and is attached to the glass element 11 and the colored ceramic layer 12 by means of an adhesive layer 15. Here, optical distortion is created not only for visible light, but also for infrared light, and in the present invention refers to optical distortion in visible light or optical distortion in infrared light depending on the information device. The plate-shaped member 14 overlaps the open portion 13 and extends beyond each of the top side 13a, the bottom side 13b, and the sides 13c and 13d so as to overlap the colored ceramic layer 12 in a plan view. In other words, the open portion 13 is surrounded by a colored ceramic layer 12, and the colored ceramic layer 12 is applied to the plate-shaped member 14 on the outside of each side of the open portion 13.

In the open portion 13, dispersion throughout the thickness of the glass 10 will likely occur in part due to the bending and shaping effect of the glass after the colored ceramic layer 12 is formed on the glass 10 by heating. However, by providing a plate-shaped element 14 in the glass element 11 so that it overlaps the open portion 13 and extends beyond each side of the open portion 13 to overlap the colored ceramic layer 12, even when there is a variance in the overall thickness in the open portion 13 of the glass element 11, the dispersion of the total thickness of the glass 10 in the open part 13, namely, the dispersion of the total thickness of the glass elements 11, the plate-shaped element 14 and the adhesive layer 15 can be suppressed. Specifically, by suppressing the dispersion of the total thickness of the glass 10 in the open portion 13, the optical distortion of the glass 10 in the open portion 13 can be reduced. In the following, the dispersion of the total thickness is also referred to as a change or variation in the total thickness.

Preferably, the variation in the total thickness of the glass 10 in the open portion 13 is less than or equal to 0.3 mm. If the variation of the total thickness of the glass 10 in the open portion 13 is less than or equal to 0.3 mm, the optical distortion of the glass 10 in the open portion 13 can be sufficiently reduced.

Thus, by having a plate-shaped member 14 attached to the glass member 11 so as to overlap the colored ceramic layer 12 extending beyond each side of the open portion 13, the optical distortion of the glass 10 in the open portion 13 can be reduced. However, as a result of accumulated research, the inventors of the present invention have discovered that depending on the positional relationship (overlap amount) between the colored ceramic layer 12 and the plate-shaped member 14, the optical distortion of the glass 10 in the open part 13 may deteriorate, and due to this, the information collection efficiency of the information device may decrease.

In particular, the inventors of the present invention have discovered that the optical distortion of the glass 10 in the open portion 13 can be improved by setting the amount of overlap L1 between the colored

- 3 044432 ceramic layer 12 and plate-shaped element 14 outside the upper side 13a of the open part 13 and the amount of overlap L ₂ between the colored ceramic layer 12 and plate-shaped element 14 outside the lower side 13b so that it is greater than or equal to 3 .5 mm.

It should be noted that the amount of overlap between the colored ceramic layer 12 and the plate-shaped member 14 outside each of the sides 13c and 13d of the open portion 13 may be greater than 0 mm and less than 3.5 mm, although it is preferably greater than or equal to 3.5 mm.

The glass 10 is installed in the vehicle so that its up-down direction is inclined relative to the normal to the ground in a side view. Therefore, the variation of the total thickness in the up-down direction of the glass 10 is noticeable, while the variation of the total thickness in the left-right direction is not noticeable. In other words, suppressing the variation of the overall thickness in the up-and-down direction of the glass 10 greatly contributes to reducing optical distortion. Therefore, the amount of overlap between the colored ceramic layer 12 and the plate-shaped member 14 outside each of the upper side 13a and the lower side 13b of the open portion 13 is set to be greater than or equal to 3.5 mm to suppress variation in the overall thickness in the direction up and down glass 10.

In contrast, suppression of the overall thickness variation in the left-right direction of the glass 10 contributes less to the reduction of optical distortion compared with suppression in the up-down direction. Therefore, the amount of overlap between the colored ceramic layer 12 and the plate-shaped member 14 outside each of the side sides 13c and 13d of the open portion 13 may be greater than 0 mm and less than 3.5 mm.

It is preferable that the plate-shaped member 14 is formed from glass or a synthetic resin having an elastic bending constant greater than or equal to 50 MPa in accordance with ASTM D790. Particularly in the case where the information device is a lidar, it is preferable that the plate-shaped member 14 is formed from soda-lime glass or the like having high transmittance in infrared light (for example, at a wavelength of 905 or 1550 nm ). One or both of the surfaces of the plate-shaped member 14 may be provided with a visible light reflection reduction coating, an infrared reflection reduction coating, an electrical heating coating, or the like.

Although the flat shape of the plate-shaped element 14 is, for example, a rectangle, it is not limited to this as long as it overlaps the colored ceramic layer 12 by a desired amount beyond each side of the open portion 13 in contact with the colored ceramic layer 12. It should be noted that the element 14 in plate form should not have an unduly large area so long as it overlaps the colored ceramic layer 12 on each side of the open portion 13 in contact with the colored ceramic layer 12 by the required amount.

The thickness of the plate-shaped member 14 is preferably less than or equal to 1, more preferably less than or equal to 0.8, more preferably less than or equal to 0.6, more preferably less than or equal to 0.4, and most preferably less than or equal to 0.2 mm.

The glass element 11 usually bends depending on the design of the vehicle. Therefore, the plate-shaped element 14 is attached to the curved glass element 11 through the adhesive layer 15. Consequently, if the plate-shaped element 14 is too thick, the plate-shaped element 14 cannot match the curvature of the glass element 11, and hence the variation in the overall thickness of the glass 10 increases. However, if the plate-shaped member 14 has a thickness less than or equal to 1 mm, it easily adapts to the curvature of the glass member 11, and the variation of the overall thickness of the glass 10 near the open portion 13 can be suppressed. As a result, the optical distortion of the glass 10 in the open portion 13 can be reduced, and thereby the information acquisition efficiency of the information device located on the inner side of the open portion 13 can be improved.

As the thickness of the plate-shaped member 14 becomes even thinner, the plate-shaped member 14 can more easily adapt to the curvature of the glass member 11, and the variation of the overall thickness of the glass 10 around the open portion 13 can be further suppressed. As a result, the optical distortion of the glass 10 in the open portion 13 can be further reduced, and thereby the information acquisition efficiency of the information device located on the inside of the open portion 13 can be further improved.

It is preferable that the curvature of the plate-shaped element 14 be less than that of the glass element 11. Because the curvature of the plate-shaped element 14 is less than the curvature of the glass element 11, due to the shock-absorbing properties of the adhesive layer 15, the destruction of the plate-shaped element 14 becomes less probable. The vertical radius of curvature of the plate-shaped member 14 (the radius of curvature in the direction along line AA in FIG. 2A) is preferably greater than or equal to 1500, more preferably greater than or equal to 2000, and even more preferably greater than or equal to 2500 mm. The horizontal radius of curvature of the plate-shaped member 14 (the radius of curvature in a direction perpendicular to the direction along line AA in FIG. 2A) is preferably greater than or equal to 2000, more preferably greater than or equal to 3000, and even more preferably greater than or equal to 4000 mm.

- 4 044432

The vertical radius of curvature of the plate-shaped member 14 can be calculated from three points: the intersection point of a vertical cross-section passing through the center of gravity of the plate-shaped member 14 with the top edge, the point of intersection with the bottom edge, and the center of gravity point. Likewise, the horizontal radius of curvature of the plate-shaped member 14 can be calculated from three points: the intersection point of the horizontal cross-section passing through the center of gravity of the plate-shaped member 14 with the left edge, the point of intersection with the right edge, and the center of gravity point. It should be noted that in the installed state of the windshield in the vehicle, for the plate-shaped member 14, the side located at the top is the upper side, and the side located at the bottom is the lower side.

The area of the plate-shaped member 14 is preferably 1500 to 60,000, more preferably 2,500 to 50,000, and even more preferably 4,000 to 40,000 mm ² .

In the top view, it is preferable that the distance L3 between the plate-shaped member 14 and the peripheral edge of the glass member 11 is greater than or equal to 20 mm. This may prevent interaction with the adhesive used in attaching the glass 10 to the vehicle.

The thickness of the adhesive layer 15 located in the open portion 13 is preferably greater than or equal to 0.1, more preferably greater than or equal to 0.2, and even more preferably greater than or equal to 0.3 mm. If the thickness of the adhesive layer 15 located in the open portion 13 is greater than or equal to 0.1 mm, due to the damping properties of the adhesive layer 15, the variation of the total thickness of the glass 10 in the open portion 13 can be suppressed, and thereby the optical distortion of the glass 10 in the open portion 13 may be reduced. As the thickness of the adhesive layer 15 located in the open portion 13 becomes thicker, the damping properties of the adhesive layer 15 are further improved, the variation of the overall thickness of the glass 10 can be further suppressed, and thereby the optical distortion of the glass 10 in the open portion 13 can be further reduced. It should be noted that it is preferable that the thickness of the adhesive layer 15 located in the open part 13 is less than or equal to 1 mm. The reason for this is that if the adhesive layer 15 is too thick, the transparency of the glass 10 in the open portion 13 will decrease.

The material of the adhesive layer 15 is not limited, particularly as long as the visible light transmittance of the open portion 13 together with the glass member 11 and the plate-shaped member 14 can be ensured to be equal to or greater than 70%. Preferably, the adhesive layer 15 contains one or more types of materials selected from the group consisting of polyvinyl butyral resin, ethylene vinyl acetate resin, cycloolefin polymer resin, ionomer resin, silicone-based resin, acrylic-based resin and urethane.

As an adhesive containing silicone resin, mention may be made, for example, of Super transparent bond (manufactured by Shinto Sangyo Co., Ltd.) and Beautiful and transparent adhesive MJ199 (manufactured by GSI Creos Corporation). As an adhesive containing an acrylic resin, for example, Kireikure (R)-501 (A-type) (manufactured by AIZ limited) may be mentioned. As an adhesive containing a urethane resin, mention may be made, for example, of glass adhesive 6425N (manufactured by Scotch Company) and Pandow 156A (manufactured by ThreeBond Co., Ltd.).

The flexural constant according to ASTM D790 of the plate-shaped member 14 is preferably five times or greater, more preferably 10 times or greater, and even more preferably 100 times or greater than the flexural constant of the adhesive layer 15. When The flexural constant of the plate-shaped member 14 is five times or more greater than the flexural constant of the adhesive layer 15, which is advantageous from the viewpoint of suppressing the variation of the total thickness of the glass 10 in the open portion 13. As the flexural constant of the member 14 in plate form becomes 10 times or more, 100 times or more, etc. Compared with the flexural constant of the adhesive layer 15, the variation of the total thickness of the glass 10 in the open portion 13 can be further suppressed.

Next, the glass plate 111, the glass plate 112, and the intermediate layer 113 in the glass member 11 as laminated glass will be described in detail.

Glass plates.

The glass plates 111 and 112 may be inorganic glass or may be organic glass. As the inorganic glass, for example, soda-lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, quartz glass and the like can be used. without specific restrictions. The glass plate 111 located on the outer side of the glass 10 is preferably inorganic glass from the point of view of scratch resistance, or preferably is soda-lime glass from the point of view of moldability. In the case where the glass plate 111 and the glass plate 112 are soda-lime glass, clear glass, green glass containing iron components in a predetermined amount or more, and UV-cutting green glass can be suitably used.

Inorganic glass can be untempered or tempered. Untempered glass is made by molding molten glass into a plate and then annealing it. Tempered glass is

- 5 044432 glass having a compressive stress layer formed on the surface of non-tempered glass.

Tempered glass may be physically tempered glass, such as, for example, thermally tempered glass, or chemically tempered glass. In the case of glass, physically tempered by an operation other than annealing, such as rapidly cooling a glass plate that has been uniformly heated during bending from a temperature near the softening point to create a compressive stress on the glass surface due to the temperature difference between the glass surface and its inside, the surface of the glass can be tempered.

In the case of chemically tempered glass, for example, after forming a bend, the surface of the glass can be tempered by applying a compressive stress to its surface using an ion exchange method or the like. In addition, glass that absorbs ultraviolet rays or infrared radiation may be used, and the glass is further transparent; however, the glass plate may be colored to an extent that does not impair transparency.

On the other hand, as organic glass, transparent resins such as polycarbonate may be mentioned; an acrylic-based resin such as polymethyl methacrylate and the like; polyvinyl chloride; polystyrene; and so on.

It should be noted that in the case where the information device is a lidar, it is preferable to form the glass plates 111 and 112 from soda-lime glass and the like having high transmittance in infrared light (for example, at a wavelength of 905 or 1550 nm) .

The shape of the glass plates 111 and 112 is not limited to a rectangular shape, and they can be processed into various shapes and curvatures. Gravity forming, stamping, roll forming and the like are used to form the bend of the glass plates 111 and 112. Although the method of forming the glass plates 111 and 112 is not limited, particularly in the case of inorganic glass, for example, the glass plate is preferably formed by a float process or the like.

It is preferable that the thickness of the glass plate 111 be greater than or equal to 1.1 mm and less than or equal to 3.0 mm. If the thickness of the glass plate 111 is greater than or equal to 1.1 mm, the strength in terms of resistance to impact from stones and the like. is sufficient; and if the thickness is less than or equal to 3 mm, the mass of the glass element 11 is not too large, which is advantageous from the point of view of fuel efficiency of the vehicle. The thickness of the glass plate 111 is more preferably greater than or equal to 1.8 and less than or equal to 2.8 mm, even more preferably greater than or equal to 1.8 and less than or equal to 2.6 mm, even more preferably greater than or equal to 1.8 and less or equal to 2.2 mm, and most preferably greater than or equal to 1.8 and less than or equal to 2.0 mm.

Preferably, the thickness of the glass plate 112 is greater than or equal to 0.3 mm and less than or equal to 2.3 mm. A thickness of the glass plate 112 greater than or equal to 0.3 mm improves ease of handling, and a thickness of the plate less than or equal to 2.3 mm makes it not too heavy.

In addition, the glass plates 111 and 112 may have a flat shape or may have a curved shape. However, in the case where the glass plates 111 and 112 have a curved shape, and the thickness of the glass plate 111 is not suitable, if two glass plates that have particularly deep curves are formed as two glass plates 111 and 112, a discrepancy between the shapes may occur these two plates, which greatly affects the quality of the glass, including the residual stress after joining under pressure.

However, by setting the thickness of the glass plate 112 to be greater than or equal to 0.3 and less than or equal to 2.3 mm, the glass quality including the residual stress can be maintained. Setting the thickness of the glass plate 112 to greater than or equal to 0.3 mm and less than or equal to 2.3 mm is particularly effective in maintaining the quality of highly curved glass. The thickness of the glass plate 112 is more preferably greater than or equal to 0.5 mm and less than or equal to 2.1 mm, and even more preferably greater than or equal to 0.7 mm and less than or equal to 1.9 mm. In these ranges the effects described above are even more noticeable.

In the case where the glass element 11 is used, for example, for a projection display, the thickness of the glass plates 111 and 112 need not be constant and may vary from place to place as necessary. For example, in the case where the glass element 11 is a windshield, one or both of the glass plates 111 and 112 may have a wedge-shaped cross-section in which the thickness of the plate increases from the lower end to the upper end of the windshield in the state where it is attached to the vehicle. In this case, if the film thickness of the intermediate layer 113 is constant, the sum of the wedge angles of the glass plate 111 and the glass plate 112 may vary, for example, in the range of 0 to 1.0 mrad.

Films having water-repellent or ultraviolet or infrared cut-off functions, or films having a low reflectance or low emissivity characteristic, may be provided on the outside of one or both of the glass plates 111 and 112. In addition, on that side of one or both glass plates 111 and 112 that contacts the intermediate layer 113, ultraviolet or infrared cutoff films having a low coefficient characteristic may be provided

- 6 044432 radiation, for absorption of visible light, for coloring, etc.

In the case where the glass plates 111 and 112 are inorganic glass having a curved shape, after the glass plates 111 and 112 have been formed by a float process or the like, curve forming is applied before bonding to the intermediate layer 113. The formation of the bend is carried out by heating and softening the glass. The heating temperature of the glass during bending is controlled to be within a range of approximately 550-700°C.

Intermediate layer.

A thermoplastic resin is often used as the intermediate layer 113, and thermoplastic resins traditionally used for this type of application include, for example, polyvinyl acetal plasticized resin, polyvinyl chloride plasticized resin, saturated polyester resin, plasticized resin. saturated polyester, polyurethane resin, plasticized polyurethane resin, ethylene vinyl acetate resin, ethylene ethyl acrylate resin, cycloolefin resin, ionomer resin and the like. Also, a resin composition including a modified block copolymer hydride described in Japanese Patent No. 6065221 can be suitably used.

Among them, polyvinyl acetal-based plastic resin is suitably used because it has an excellent balance of properties, including transparency, weather resistance, strength, adhesive strength, penetration resistance, impact energy absorption, moisture resistance, heat insulation and sound insulation. One of these thermoplastic resins may be used alone, or two or more of them may be used in combination. It should be noted that the word plastic in the above-described polyvinyl acetal plastic resin means that it is plasticized by adding a plasticizer. The same applies to other plastic resins.

However, in the case where the film, etc. included in the intermediate layer 113, depending on the type of material included, it may be destroyed by a particular plasticizer; in such a case, it is preferable to use a resin that contains virtually no plasticizer. In other words, in some cases it is preferable that the intermediate layer 113 does not contain a plasticizer. As the plasticizer-free resin, for example, an ethylene vinyl acetate copolymer resin and the like can be mentioned.

As the polyvinyl acetal resin described above, there may be listed a polyvinyl formal resin obtained by reacting polyvinyl alcohol (may hereinafter be referred to as PVA as necessary) with formaldehyde; a polyvinyl acetal resin in the narrow sense obtained by reacting PVA with acetaldehyde; polyvinyl butyral resin (may be further referred to as PVB as appropriate) obtained by reacting PVA with n-butyraldehyde; and so on. In particular, PVB is recommended as suitable due to its excellent balance of properties including transparency, weather resistance, strength, adhesive strength, penetration resistance, impact energy absorption, moisture resistance, thermal insulation and sound insulation. It should be noted that one of these polyvinyl acetal resins may be used alone, or two or more of them may be used in combination.

However, the material forming the intermediate layer 113 is not limited to thermoplastic resin. In addition, the intermediate layer 113 may contain functional particles such as infrared absorbers, ultraviolet absorbers, luminescent agents, and the like. In addition, the intermediate layer 113 may have a colored portion called a blackout stripe.

It is preferable that the film thickness of the intermediate layer 113 at its thinnest part be greater than or equal to 0.5 mm. If the thickness of the film of the intermediate layer 113 at the thinnest part is greater than or equal to 0.5 mm, the impact strength required for laminated glass becomes sufficient. Moreover, it is preferable that the thickness of the film of the intermediate layer 113 at the thickest part is less than or equal to 3 mm. If the maximum value of the film thickness of the intermediate layer 113 is less than or equal to 3 mm, the mass of the laminated glass does not become too large. The maximum film thickness of the intermediate layer 113 is more preferably less than or equal to 2.8 mm, and even more preferably less than or equal to 2.6 mm.

In the case where the glass element 11 is used, for example, for a projection display, the thickness of the film of the intermediate layer 113 need not be constant and may vary from place to place as necessary. For example, in the case where the glass element 11 is a windshield, the intermediate layer 113 may have a wedge-shaped cross-section in which the film thickness becomes larger from the lower end to the upper end of the windshield in the state of the windshield in the state where it is attached to the vehicle. In this case, if the thickness of the glass plates 111 and 112 is constant, the wedge angle of the intermediate layer 113 can be varied, for example, in the range of 0 to 1.0 mrad.

It should be noted that the intermediate layer 113 may be formed from several intermediate layers. For example, by forming the intermediate layer 113 to have three intermediate layers and making the Shore hardness of the middle layer lower than the Shore hardness of the layers on both outer sides by adjusting the plasticizer and the like, it is possible to improve the sound insulation performance of the laminated glass. In this case, the hardness of the outer layers may be the same or may differ.

In addition, in the case where the intermediate layer 113 is formed from multiple intermediate layers, although it is desirable for all of these layers to be formed from the same material, some of the layers may be formed from other materials. However, from the point of view of adhesion between the glass plates 111 and 112 or the functional materials to be contained in the glass member 11, it is desirable to use the above-described materials in an amount equal to 50% or more of the thickness of the film of the intermediate layer 113.

For example, to obtain the intermediate layer 113, a resin material for forming the intermediate layer is suitably selected from those described above, and is formed by hot and molten extrusion using an extruder. Extrusion conditions, such as the extrusion speed from the extruder, are set uniformly. Thereafter, to impart curvature to the top side and bottom side according to the design of the laminated glass, for example, the extrusion-formed resin film can be stretched as needed to complete the intermediate layer 113.

Glass element (laminated glass).

Preferably, the total thickness of the glass element 11 is greater than or equal to 2.8 mm and less than or equal to 10 mm. When the total thickness of the glass element 11 is greater than or equal to 2.8 mm, sufficient rigidity can be ensured. Moreover, if the total thickness of the glass element 11 is less than or equal to 10 mm, sufficient transparency can be obtained and haze can be reduced.

Along at least one side of the glass element 11, the discrepancy between the glass plate 111 and the glass plate 112 is preferably less than or equal to 1.5 mm, and more preferably less than or equal to 1 mm. Here, the discrepancy between the glass plate 111 and the glass plate 112 represents the amount of discrepancy between the edge of the glass plate 111 and the corresponding edge of the glass plate 112 in the plan view.

Along at least one side of the glass element 11, if the discrepancy between the glass plate 111 and the glass plate 112 is less than or equal to 1.5 mm, it is favorable from an appearance point of view. Along at least one side of the glass element 11, if the discrepancy between the glass plate 111 and the glass plate 112 is less than or equal to 1.0 mm, it is even more favorable in terms of appearance.

To produce the glass element 11, an intermediate layer 113 is placed between the glass plate 111 and the glass plate 112 to form a laminate. The laminate is then, for example, placed in a rubber bag to be bonded under vacuum, the pressure of which is between -65 and -100 kPa, at a temperature of approximately 70-110°C. The heating conditions, temperature conditions and lamination method are selected according to the circumstances.

In addition, for example, by applying heat and pressure treatment to the laminate under conditions of, for example, a temperature of 100-150° C. and a pressure of 0.6-1.3 MPa, a glass element 11 having increased durability can be obtained. However, in some cases, this heat and pressure treatment process is not used due to the simplification of the process and the characteristics of the materials included in the glass element 11. It should be noted that after the glass element 11 is completed, the plate-shaped element 14 is attached to a predetermined part of the glass element 11 by means of an adhesive layer 15.

Between the glass plate 111 and the glass plate 112, to an extent not affecting the effects of the present invention, in addition to the intermediate layer 113, films and/or devices may be provided that perform the functions of heating wire, infrared reflection, light emission, power generation, light control, touch panel, visible light reflection, diffusion, decoration, absorption, etc. In addition, the glass element 11 may have films on its surface that perform the functions of anti-fog, water repellency, heat protection, reflection reduction, heat generation, and the like. In addition, films performing functions of heat protection, heat generation and the like may be provided on the outer surface of the glass plate 111 or on the inner surface of the glass plate 112.

Second embodiment.

In the second embodiment, an example will be described in which instead of laminated glass, a single glass plate is used as the glass element. In the case of using a single glass plate for a vehicle window, it is preferable to use tempered glass. It should be noted that in the second embodiment, descriptions of the same elements as in the already described embodiment may be omitted.

- 8 044432

Fig. 3 includes enlarged views illustrating glass according to the second embodiment; in particular, FIG. 3A is an enlarged view close to the open portion 13, and

Fig. 3B is a sectional view taken along line BB of FIG. 3A. It should be noted that since the top view of the entire glass according to the second embodiment would be substantially the same as in FIG. 1, this illustration is omitted.

As shown in FIG. 3, glass 10A differs from glass 10 (see FIG. 2, etc.) in that glass element 11 is replaced by glass element 11A. Although in glass 10A the glass element 11A is tempered glass, in glass 10 the glass element 11 is laminated glass. Tempered glass may be physically tempered glass, such as, for example, thermally tempered glass, or chemically tempered glass. Tempered glass has been described above. It is preferable that the thickness of the glass element 11A be greater than or equal to 2 mm and less than or equal to 6 mm, from the viewpoints of achieving sufficient transparency and reducing haze while providing strength such as stone impact resistance.

Thus, in the vehicle glass according to the present embodiment, the glass element may be laminated glass or tempered glass. Whether to use laminated glass or tempered glass as the glass element can be selected according to circumstances depending on which part of the vehicle is provided with vehicle glass according to the present embodiment.

Modified example of the first and second embodiments.

In a modified example of the first and second embodiments, an example in which the shape of the open portion in contact with the colored ceramic layer is different from its shape in the first and second embodiments will be described. It should be noted that in the modified example of the first and second embodiments, descriptions of the same elements as in the already described embodiments may be omitted.

Fig. 4 includes partially enlarged views of areas near the open portion according to a modified example of the first and second embodiments. Although in the first embodiment, the entire periphery of the open portion 13 is surrounded by the colored ceramic layer 12 in the plan view, in the modified example this is not substantially limited. For example, as illustrated by the open portion 17 shown in FIG. 4A, or the open portion 18 shown in FIG. 4B, a form may be used in which a portion of the periphery is surrounded by a colored ceramic layer 12 and the rest of the periphery is not surrounded by a colored ceramic layer 12.

The open part 17 shown in FIG. 4A has three sides in contact with the colored ceramic layer 12. Specifically, the open portion 17 includes an upper side 17a, which becomes an upper side (top edge side 111) when the glass 10B is installed in the vehicle; a side 17c connected to one end of the top side 17a; and a side side 17d connected to the other end of the top side 17a. The open portion 17 does not have a lower side opposite the upper side 17a.

The amount of overlap L1 between the colored ceramic layer 12 and the plate-shaped member 14 outside the upper side 17a of the open portion 17 is greater than or equal to 3.5 mm. It should be noted that the amount of overlap between the colored ceramic layer 12 and the plate-shaped member 14 outside each of the sides 17c and 17d of the open portion 17 may be greater than 0 mm and less than 3.5 mm, although it is preferably greater than or equal to 3.5 mm. In the plan view of the glass 10B, it is preferable that the distance L3 between the plate-shaped member 14 and the peripheral edge of the glass member 11 is greater than or equal to 20 mm. This may prevent interaction with the adhesive used when attaching the 10B glass to the vehicle.

The open part 18 shown in FIG. 4B has five sides in contact with the colored ceramic layer 12. Specifically, the open portion 18 includes an upper side 18a, which becomes an upper side (top edge side 111) when the glass 10C is installed in the vehicle; a lower side 18b opposite a portion of the upper side 18a, between which the open portion 18 is disposed; a side 18c connected to one end of the upper side 18a and one end of the lower side 18b; a side side 18d connected to the other end of the top side 18a; and a side side 18e connected to the other end of the bottom side 18b. The open portion 18 does not have a side connecting the side side 18d and the side side 18e.

The amount of overlap L1 between the colored ceramic layer 12 and the plate-shaped member 14 outside the upper side 18a of the open portion 18 is greater than or equal to 3.5 mm. It is preferable that the amount of overlap L ₂ between the colored ceramic layer 12 and the plate-shaped member 14 outside the lower side 18b of the open portion 18 is greater than or equal to 3.5 mm. It should be noted that the amount of overlap between the colored ceramic layer 12 and the plate-shaped member 14 outside each of the sides 18c and 18d of the open portion 18 may be greater than 0 mm and less than 3.5 mm, although it is preferably greater than or equal to 3.5 mm. In the plan view of the glass 10C, it is preferable that the distance L ₃ between the plate-shaped member 14 and the peripheral edge of the glass member 11 is greater than or equal to 20 mm. This may prevent interaction

- 9 044432 with adhesive used when attaching 10C glass to a vehicle.

The suitable area of the open portions 17 and 18 is substantially the same as that for the open portion 13. It should be noted that in the examples shown in FIGS. 2-4, although one glass element is provided with one open portion, one glass element may be provided with multiple open portions. For example, there is a case in which one glass element is provided with one open portion for a visible light camera, another open portion for a lidar, and the like, which are separate from each other. In this case, the area described above corresponds to the area of each of the open parts.

Thus, the lower side of the open portion may be open to have a shape similar to the open portion 17. In addition, a slot-like open portion may be formed in the colored ceramic layer 12 surrounding the entire periphery of the open portion to provide a discontinuous region in the colored ceramic layer 12 to have a shape similar to the open portion 18. It should be noted that, as in the open portions 17 and 18, in the case where a discontinuous region is present in the colored ceramic layer 12 along the periphery of the open portion, the area of the glass element corresponding to the camera image angle visible light, etc., is considered to be the range of the open part.

Application examples.

Application examples will be described below; however, the present invention is in no way limited to these examples. It should be noted that in the description reference will be made to FIGS. 58 according to the circumstances.

Examples 1-9.

In each of Examples 1 to 9, for glass using laminated glass as a glass element, in the case where a colored ceramic layer is applied to a plate-shaped element, the relationship between the amount of overlap and the amount of optical distortion along the entire periphery of the open portion was confirmed.

Example 1.

When formed into laminated glass, a glass plate 511 serving as an outer plate (a glass plate on the outside of a vehicle) and a glass plate 512 serving as an inner plate (a glass plate on the inside of a vehicle) (commonly known as VFL) were prepared. , manufactured by AGC Inc.). The dimensions of glass plates 511 and 512 were set to 300 mm long x 300 mm wide x 2 mm thick, and the plates were curved with a radius of curvature of 3000 mm in both vertical and horizontal directions. A colored ceramic layer 52 provided with an open portion 53 was formed on the inner surface of the glass plate 512. The flat shape of the open portion 53 was a square with a length of 40 mm and a width of 40 mm.

Then, an intermediate layer 513 (PVB manufactured by Sekisui Chemical Co., Ltd., having a thickness of 0.76 mm) was prepared. The laminate was then produced by placing an intermediate layer 513 between the glass plate 511 and the glass plate 512.

Next, a glass plate with dimensions of 47 x 47 x 1 mm (commonly known as FL manufactured by AGC Inc.) was prepared as a plate-shaped member 54. Then, the plate-shaped element 54 was glued to the inside of the glass element 51 by means of an adhesive layer 55 made of polyvinyl butyral resin and having dimensions of 47 x 47 x 0.1 mm, so that the overlap amount L between the colored ceramic layer 52 and the plate-shaped element 54 was equal to 3.5 mm along the entire periphery of the open part 53.

The laminate with the bonded plate-shaped member 54 was then placed in a rubber bag to be bonded under a vacuum pressure of -65 to -100 kPa at a temperature of approximately 70 to 110°C. Then, heat and pressure were applied to the laminate under conditions of a temperature range of 100-150°C and a pressure range of 0.6-1.3 MPa to produce evaluation glass 50A, in which the glass element 51 is laminated glass.

The evaluation glass shape 50A is shown in FIG. 5 and 6. However, in FIGS. 5 and 6, for ease of description, the glass is illustrated without the actual curved shape. It should be noted that FIG. 5 is a partial plan view of the evaluation glass 50A and schematically illustrates a state in which the side of the glass plate 512 faces the drawing plane side. Fig. 6 is a partial cross-section of evaluation glass 50A along line CC in FIG. 5.

Example 2.

The evaluation glass 50B was produced in substantially the same manner as in Example 1, except that the size of the adhesive layer 55 was set to 47 x 47 x 0.2 mm.

Example 3.

The evaluation glass 50C was produced in essentially the same manner as in Example 1, except that the size of the plate-shaped member 54 was set to 50 x 50 mm; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 5 mm along the entire periphery of the open portion 53; and the size of the adhesive layer was 55

- 10 044432 is set to 50 x 50 x 0.2 mm.

Example 4.

The evaluation glass 50D was produced in substantially the same manner as in Example 1, except that the size of the plate-shaped member 54 was set to 60 x 60 mm; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 10 mm along the entire periphery of the open portion 53; and the size of the adhesive layer 55 was set to 60 x 60 x 0.2 mm.

Example 5.

The evaluation glass 50E was produced in substantially the same manner as in Example 1, except that the plate-shaped element was not glued to the inside of the glass element 51.

Example 6.

The evaluation glass 50F was produced in essentially the same manner as in Example 1, except that the size of the plate-shaped member 54 was set to 40 x 40 mm; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 0 mm along the entire periphery of the open portion 53; and the size of the adhesive layer 55 was set to 40 x 40 mm.

Example 7.

The evaluation glass 50G was produced in substantially the same manner as in Example 1, except that the size of the plate-shaped member 54 was set to 46 x 46 mm; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 3 mm along the entire periphery of the open portion 53; and the size of the adhesive layer 55 was set to 46 x 46 mm.

Example 8.

The evaluation glass 50H was produced in substantially the same manner as in Example 1, except that the size of the plate-shaped member 54 was set to 40 mm x 40 mm; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 0 mm along the entire periphery of the open portion 53; and the size of the adhesive layer 55 was set to 40 x 40 x 0.2 mm.

Example 9.

The evaluation glass 50I was produced in substantially the same manner as in Example 1, except that the size of the plate-shaped member 54 was set to 46 mm x 46 mm; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 3 mm along the entire periphery of the open portion 53; and the size of the adhesive layer 55 was set to 46 x 46 x 0.2 mm.

Score 1.

For each of the 5OA-5O1 glasses, the amount of optical distortion was visually checked for evaluation. The details of this are as follows.

As illustrated in FIG. 7, the evaluation glass 50A was positioned at the same angle as when attaching the glass to the vehicle, and a zebra pattern 510 was placed on its outer side. The zebra pattern 510 was a pattern of multiple black lines 510b on a white background 510a. The black lines 510b are designed to have a 45 degree angle relative to the underside of the zebra pattern 510 and be parallel to each other.

Optical distortion was evaluated according to the degree of distortion of the zebra pattern 510 near the boundary between the open portion 53 and the colored ceramic layer 52 when viewing the zebra pattern 510 from the inside of the evaluation glass 50A.

Fig. 8A and 8B are exemplary enlarged views of the zebra pattern 510 near the boundary F between the open portion 53 and the colored ceramic layer 52 in the ovalized area on the evaluation glass 50A in FIG. 5, when viewed from the inside of glass 50A for evaluation.

Fig. 8A is an example in which optical distortion is not generated, while FIG. 8(b) is an example in which optical distortion is generated. In fig. 8B, the black line 510b of the zebra pattern 510 appears deformed, as if it were curved near the boundary F between the open portion 53 and the colored ceramic layer 52. Therefore, the distance between the position at which the extension of the line G on the right side of the black line 510b intersects the boundary F, and the position at which the black line 510b actually intersects the boundary F is taken as a distortion measure (W) for evaluating the optical distortion of the glass 50A for evaluation according to the following criteria. Table 1 shows the results of the evaluations where the case of W<3 mm was rated as excellent; a case of 3 mm <W <5 mm was assessed as good; and the case of W>5 mm was rated as poor.

- 11 044432

Table 1

Amount of overlap (entire perimeter) Thickness of plate element Adhesive layer thickness Result (optical distortion) Example 1 3.5 mm 1 mm 0.1 mm Good Example 2 3.5 mm 1 mm 0.2 mm Excellent Example 3 5 mm 1 mm 0.2 mm Excellent Example 4 10 mm 1 mm 0.2 mm Excellent Example 5 - - - Bad Example 6 0 mm 1 mm 0.1 mm Bad Example 7 3 mm 1 mm 0.1 mm Bad Example 8 0 mm 1 mm 0.2 mm Bad Example 9 3 mm 1 mm 0.2 mm Bad

As shown in table. 1, in cases in which the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was greater than or equal to 3.5 mm along the entire periphery of the open portion 53, it was confirmed that optical distortion was not a problem. In particular, as can be seen by comparing Example 1 with Example 2, even when the overlap amount L was the same, the optical distortion was reduced more when the adhesive layer 55 was thicker. The reason for this is that the thickness of the adhesive layer 55 located in the open portion 53 was greater, the shock-absorbing property of the adhesive layer 55 was further improved, and thus the variation of the overall thickness of the evaluation glass could be further suppressed.

Examples 10 and 11.

In Examples 10 and 11 for glass using laminated glass as a glass element, in the case where a colored ceramic layer is applied to the plate-shaped element either along the top and bottom sides or along the left and right sides of the open part, the relationship between the amount of overlap and the amount of optical distortion.

Example 10.

The evaluation glass 50J was produced in substantially the same manner as in Example 1, except that the size of the plate-shaped member 54 was set to 40 mm long x 47 mm wide; the size of the adhesive layer 55 was set to 40 mm long x 47 mm wide; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 0 mm along the top and bottom sides of the open portion 53; and the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 3.5 mm along the left and right sides of the open portion 53.

Example 11.

The 50K glass for evaluation was produced in substantially the same manner as in Example 1, except that the size of the plate-shaped element 54 was set to 47 mm long x 40 mm wide; the size of the adhesive layer 55 was set to 47 mm long x 40 mm wide; the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 3.5 mm along the upper and lower sides of the open portion 53; and the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 0 mm along the left and right sides of the open portion 53.

Score 2.

For each of the 50J and 50K glasses, the amount of optical distortion was visually inspected for evaluation. The evaluation criteria were the same as in Evaluation 1. The results are shown in Table. 2.

table 2

Amount of overlap (top and bottom or left and right) Thickness of plate element Adhesive layer thickness Result (optical distortion) Example 10 Top and bottom: 0 mm Left and Right: 3.5mm 1 mm 0.1 mm Bad Example 11 Top and bottom: 3.5mm Left and right: 0 mm 1 mm 0.1 mm Good

As shown in table. 2, in the case when the amount of overlap L between the painted ceramic

Claims (4)

The ceramic layer 52 and the plate-shaped member 54 was set to 3.5 mm along the top and bottom sides of the open portion 53, even though the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 0 mm along the left and right sides of the open portion 53, it was confirmed that optical distortion was not a problem. In contrast, in the case where the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 was set to 0 mm along the upper and lower sides of the open portion 53, even when the overlap amount L between the colored ceramic layer 52 and the member The plate-shaped 54 was set to 3.5 mm along the left and right sides of the open portion 53, it was confirmed that the optical distortion exceeded the permissible limit. The reason for this is that, as described above, suppressing the variation of the total thickness in the up-down direction of the evaluation glass greatly contributes to the reduction of optical distortion, while suppressing the variation of the total thickness of the glass in the left-right direction contributes less to the reduction of optical distortion . In other words, in order to suppress the variation of the overall thickness in the up-down direction of the evaluation glass, it is effective to make the overlap amount L between the colored ceramic layer 52 and the plate-shaped member 54 greater than or equal to 3.5 mm along the top and bottom sides of the open portion 53. Obviously that the same is true for real glass, which is different in shape from the glass being judged. Advantageous embodiments and the like have been described in detail above; however, the present invention is not limited to them and can be changed and modified in various ways without deviating from the scope described in the claims, embodiments, etc. described above. The present international invention claims priority based on Japanese Patent Application No. 2019-123212, filed on July 1, 2019, the entire contents of which are incorporated herein by reference. Description of reference figures 10, 10A, 10B, 10C - glass; 11, 11A - glass element; 12 - painted ceramic layer; 13, 17, 18 - open part; 14 - plate-shaped element; 15 - adhesive layer; 111, 112 - glass plate; 113 - intermediate layer. CLAIM 1. Glass for installation in a vehicle, containing: glass element; a colored ceramic layer provided in a predetermined area of the glass element; an open information collection portion having one or more sides in contact with the painted ceramic layer in a plan view; and a plate-shaped member that is formed of glass or synthetic resin having a flexural elasticity constant greater than or equal to 50 MPa in accordance with ASTM D790, spanning the exposed portion and extending beyond each of one or more sides so as to span the colored ceramic layer wherein one or more sides include an upper side that becomes an upper side after the glass is installed in the vehicle, and wherein the amount of overlap between the colored ceramic layer and the plate-shaped member beyond the upper side is greater than or equal to 3.5 mm. 2. The glass of claim 1, wherein the one or more sides includes a bottom side opposite the top side, between which there is an open portion after the glass is installed in the vehicle, and wherein the amount of overlap between the colored ceramic layer and the plate-shaped member is outside the bottom side greater than or equal to 3.5 mm. 3. The glass of claim 2, wherein one or more of the sides includes a side connected to at least one of the top or bottom side after the glass is installed in the vehicle, and wherein the amount of overlap between the colored ceramic layer and the element in plate shape outside the side is greater than or equal to 3.5 mm. 4. Glass according to any one of claims 1 to 3, wherein the plate-shaped element is attached to the glass element and the colored ceramic layer by means of an adhesive layer, and -