Glass article with frame for minimal shape distortion and small bezel width

Abstract

Embodiments of curved glass articles are disclosed herein. The curved glass article includes a glass sheet having a first major surface and a second major surface. The glass sheet is curved to define a curved region disposed between flat sections. The curved glass article further includes a carrier adhered to the glass sheet. The carrier includes longitudinal strips and lateral strips. The longitudinal strips define a radius of curvature of the curved region. The lateral strips extend between the longitudinal strips. The glass sheet is 0.3 mm or less out of plane in the flat sections. Each longitudinal strip has a width W long of 2 mm or less. Each first lateral strip has a width W lat of 20 mm or less. At least a portion of the width W lat of each lateral strip is located in the curved region and the flat sections.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to U.S. Provisional Application Serial No. 63 / 014,401, filed April 23, 2020, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] This disclosure relates to glass articles and methods of forming thereof, and more specifically to vehicle interior systems including glass articles having a carrier that provides low shape deviations and high mechanical reliability. Background Technology

[0004] Vehicle interior trim includes curved surfaces, and displays can be integrated into these curved surfaces. The materials used to form such curved surfaces are typically limited to polymers, which do not exhibit the durability and optical properties of glass. Therefore, curved glass substrates are desirable, especially when used as covers for displays. Existing methods for forming such curved glass substrates, such as thermoforming, have disadvantages including high cost, optical distortion, and surface markings. Therefore, the applicant has identified a need for a vehicle interior trim system that can incorporate curved glass substrates in a cost-effective manner and without the problems typically associated with glass thermoforming processes. Summary of the Invention

[0005] According to one aspect, embodiments of this disclosure relate to a curved glass article. The curved glass article includes a glass sheet having a first main surface and a second main surface opposite to the first main surface. The glass sheet is bent into a curved configuration defining a curved region disposed between a first flat section and a second flat section. The curved region has a radius of curvature of at least 250 mm. The curved glass article also includes a carrier adhered to the second main surface of the glass sheet and configured to hold the glass sheet in the curved configuration. The carrier includes a first longitudinal strip, a second longitudinal strip, a first lateral strip, and a second lateral strip. The first longitudinal strip is spaced apart from the second longitudinal strip, and the first and second longitudinal strips define the radius of curvature of the curved region. The first lateral strip is spaced apart from the second lateral strip, and the first and second lateral strips extend between the first and second longitudinal strips. The glass sheet deviates from a plane by 0.3 mm or less in the first and second flat sections. The first and second longitudinal strips each have a width W of 2 mm or less. long Furthermore, both the first and second side strips have a width W of 20 mm or less. lat The width W of the first lateral strip lat At least a portion of it is located in the curved region and the first flat section, and the width W of the second lateral strip is... latAt least a portion of it is located in the curved region and the second flat section.

[0006] According to another aspect, embodiments of this disclosure relate to a curved glass article. The curved glass article includes a glass sheet having a first main surface and a second main surface opposite to the first main surface. The glass sheet is bent into a curved configuration defining a curved region disposed between a first flat section and a second flat section. The curved region has a radius of curvature of at least 250 mm. A carrier is adhered to the second main surface of the glass sheet and configured to hold the glass sheet in the curved configuration. The carrier includes a first longitudinal strip, a second longitudinal strip, a first lateral strip, a second lateral strip, a third lateral strip, and a fourth lateral strip. The first longitudinal strip is spaced apart from the second longitudinal strip, and the first and second longitudinal strips define the radius of curvature of the curved region. The first lateral strip, the second lateral strip, the third lateral strip, and the fourth lateral strip extend between the first and second longitudinal strips. The glass sheet deviates from the plane by 0.3 mm or less in the first and second flat sections. The width of each of the longitudinal strips and the lateral strips is 2 mm or less. In addition, a first lateral strip is disposed in a first flat section, a second lateral strip and a third lateral strip are disposed in a curved section, and a fourth lateral strip is disposed in a second flat section.

[0007] According to another aspect, embodiments of this disclosure relate to a method for preparing a curved glass article, wherein a glass plate is bent to conform to a carrier having a curvature radius of at least 250 mm. Bending is performed at a temperature of 200°C or lower. The glass plate has a first main surface and a second main surface. The second main surface is opposite to the first main surface. The carrier includes a first longitudinal strip, a second longitudinal strip, and at least two lateral strips. The at least two lateral strips extend between the first and second longitudinal strips. By bending, the glass plate has a curved region disposed between a first flat section and a second flat section. In this method, the glass plate is adhered to the carrier to provide a curved glass article having a shape deviation of ±0.3 mm in the flat section. The first and second longitudinal strips each have a width W of 2 mm or less. long Furthermore, the first lateral strip of at least two lateral strips is at least partially located in the first flat section, and the second lateral strip of at least two lateral strips is at least partially located in the second flat section.

[0008] Other features and advantages will be set forth in the detailed description below, and will be apparent to those skilled in the art from the description or will be recognized by practice of the embodiments described herein (including the following detailed description, claims and drawings).

[0009] It should be understood that the foregoing general description and the following detailed description are merely exemplary and intended to provide an overview or outline for understanding the nature and features of the claims. The accompanying drawings are included to provide further understanding and are incorporated in and form part of this specification. Attached Figure Description

[0010] Several aspects of the invention are illustrated in conjunction with the accompanying drawings, which are included and form part of this specification, and serve to explain the principles of the invention. In the drawings:

[0011] Figure 1 This is a perspective view of a vehicle interior having a vehicle interior system according to an exemplary embodiment;

[0012] Figure 2A and Figure 2B A side view and a rear view of a V-shaped glass article according to an exemplary embodiment are depicted respectively;

[0013] Figure 3 An embodiment of a carrier having multiple lateral strips according to an exemplary embodiment is depicted;

[0014] Figure 4A and Figure 4B A side view and a rear view of a C-shaped glass article according to an exemplary embodiment are depicted respectively;

[0015] Figure 5A Comparative examples of carriers used for bending glass articles are depicted;

[0016] Figures 5B-5D A rectangular carrier for bending glass articles according to an exemplary embodiment is depicted;

[0017] Figure 6A The image in Figure 5 depicts a carrier being attached to a glass plate to form a glass article.

[0018] Figures 6B to 6D Depicting according to an exemplary embodiment, Figures 5B-5D A rectangular carrier is attached to a glass plate to form a glass product;

[0019] Figure 7 A table is provided that compares those with Figures 6A-6C The shape deviation of the glass product on the carrier shown;

[0020] Figure 8 A table is provided that compares different degrees of [something] for flat sections extending into the glass plate. Figures 6A-6C The shape deviation of the glass product on the carrier shown;

[0021] Figure 9The graph illustrates the mechanical reliability of a carrier attachment that extends to different degrees based on the width of the lateral strips extending in flat sections and curved regions, according to an exemplary embodiment.

[0022] Figure 10A and Figure 10B An exemplary method for forming a carrier according to an exemplary embodiment is described;

[0023] Figure 11 A carrier with chamfered edges according to an exemplary embodiment is depicted; and

[0024] Figure 12 A glass sheet suitable for cold forming on a carrier to produce glass articles, according to an exemplary embodiment, is depicted. Detailed Implementation

[0025] Reference will now be made in detail to various embodiments, examples of which are illustrated in the accompanying drawings. Generally, the various embodiments relate to vehicle interior systems with curved glass surfaces. In the embodiments discussed herein, the curved glass surface comprises a glass plate bonded to a carrier that holds the glass in its curved shape. Furthermore, the carrier is configured as a frame for mounting to the vehicle interior system. As will be described herein, the carrier provides a minimal non-display area (referred to herein as a “bezel”), which can be as small as 1 mm on the top and bottom sides and as small as 8 mm on the side sides (for a glass article with a 0.7 mm thick glass plate, a rectangular carrier, and a 250 mm radius of curvature), leaving most of the glass surface available for viewing the rear-mounted display. Additionally, the shape and width of the carrier are configured to provide mechanical reliability against cold forming and thermal stresses associated with typical operating environments. Various embodiments of the carrier and constructions for mounting the carrier to a vehicle frame are disclosed herein. These embodiments are exemplary only and not limiting.

[0026] In general, vehicle interior systems can include a variety of curved surfaces designed to be transparent, such as curved display surfaces and curved non-display glass covers. Curved vehicle surfaces formed from glass materials offer numerous advantages compared to typical curved plastic panels commonly found in vehicle interiors. For example, glass is generally considered to provide enhanced functionality and user experience in many curved cover applications, such as display and touchscreen applications, compared to plastic cover materials.

[0027] Figure 1An exemplary vehicle interior 1000 is shown, comprising three different embodiments of vehicle interior systems 100, 200, and 300. Vehicle interior system 100 includes a frame shown as a center console base 110, the curved surface 120 of which includes an optically integrated display 130. Vehicle interior system 200 includes a frame shown as an instrument panel base 210, the frame having a curved surface 220 including an optically integrated display 230. Instrument panel base 210 typically includes an instrument panel 215, which may also include an optically integrated display. Vehicle interior system 300 includes a frame shown as a steering wheel base 310, the frame having a curved surface 320 and an optically integrated display 330. In one or more embodiments, the vehicle interior system includes a frame that is an armrest, pillar, seat back, floor, headrest, door panel, or any curved portion of the vehicle's interior. In other embodiments, the frame is part of a housing for a freestanding display (i.e., a display not permanently attached to a part of the vehicle). In the embodiments, the optically combined displays 130, 230, and 330 are at least one of a light-emitting diode (LED) display, an organic LED (OLED) display, a liquid crystal display (LCD), or a plasma display.

[0028] The glass articles described herein can be used in each of vehicle interior systems 100, 200, and 300. Furthermore, the glass articles described herein can be used as curved cover glass for any of the display embodiments discussed herein, including for vehicle interior systems 100, 200, and / or 300. Additionally, in various embodiments, various non-display components of vehicle interior systems 100, 200, and 300 can be formed from the glass articles discussed herein. In some such embodiments, the glass articles discussed herein can be used as non-display cover surfaces for dashboards, center consoles, door panels, etc. In such embodiments, the glass material can be selected based on factors such as weight and aesthetic appearance. A coating (e.g., an ink or pigment coating) with a pattern (e.g., a brushed metallic appearance, a wood grain appearance, a leather appearance, a colored appearance, etc.) can be applied to visually match the glass component with adjacent non-glass components. In certain embodiments, such an ink or pigment coating can have transparency that provides deadfront or color matching functionality.

[0029] In the embodiment, the curved surfaces 120, 220, and 320 are generally as follows: Figure 2A and 2B The V-shape shown, or as Figures 4A-4B The C-shape shown is an example; however, other shapes are also possible. First, refer to... Figure 2AThe image shows a side view of an embodiment of a V-shaped article 10. The V-shaped glass article 10 includes a glass plate 12. The glass plate 12 has a first main surface 14 and a second main surface 16. In a vehicle, the first main surface 14 faces the vehicle occupants, and the second main surface 16 is the rear surface of the V-shaped glass article 10, to which a display (e.g., an LED display, an OLED display, an LCD display, or a plasma display) can be mounted, for example, using an optically transparent adhesive. The second main surface 16 is opposite to the first main surface 14, and the first and second main surfaces 14 define the thickness T of the glass plate 12. The first and second main surfaces 14 are joined by a secondary surface 18.

[0030] from Figure 2A As can be seen, the glass plate 12 has a curved region 20 disposed between the first flat section 22a and the second flat section 22b. In embodiments, the radius of curvature R of the curved region 20 ranges from 250 mm to a radius smaller than that of a substantially flat or planar region (e.g., 10 m). Furthermore, as... Figure 2A As shown, the curved region 20 defines a concave bend, but in other embodiments, the curved region 20 is instead a convex bend. For Figure 2A The V-shaped article 10 has adhesive 24 applied to the second main surface 16 in the curved region 20. Adhesive 24 attaches the carrier 26 to the glass plate 12. (As shown) Figure 2A As shown, the carrier 26 extends over the entire curved region 20 and at least partially extends into the flat sections 22a, 22b. The portion of the carrier 26 extending into the flat sections 22a, 22b is shown between the dashed lines labeled "flat region". As will be discussed more fully below, the applicant has determined the dimensions and thickness of the carrier, which are designed to minimize the distance by which the carrier 26 extends into the flat sections 22a, 22b, while keeping the shape deviation of the glass plate 12 within ±0.3 mm.

[0031] In this embodiment, adhesive 24 comprises a pressure-sensitive adhesive. Exemplary pressure-sensitive adhesives suitable for use with adhesive 24 include 3M... TM VHB TM (Available from 3M in St. Paul, Minnesota) or (Available from tesa SE GmbH, Nordstadt, Germany). In an embodiment, adhesive 24 comprises a liquid adhesive. Exemplary liquid adhesives include toughened epoxy resins, flexible epoxy resins, acrylics, silicones, urethanes, polyurethanes, and silane-modified polymers. In a particular embodiment, the liquid adhesive comprises one or more toughened epoxy resins, such as EP21TDCHT-LO (available from Hackensack, New Jersey). The company obtained 3M TM Scotch-WeldTM Epoxy resin DP460 Off-White (available from 3M Company, St. Paul, Minnesota). In other embodiments, the liquid adhesive comprises one or more flexible epoxy resins, such as Masterbond EP21TDC-2LO (available from Hackensack, New Jersey). The company obtained 3M TM Scotch-Weld TM Epoxy 2216B / A Gray (available from 3M in St. Paul, Minnesota) and 3M TM Scotch-Weld TM Epoxy DP125. In other embodiments, the liquid adhesive comprises one or more acrylic acids, such as those with... Adhesive 410 / Accelerator 19w / AP 134 primer, Adhesive 852 / Accelerator 25GB (both are available from LORD Company, Cali, North Carolina), DELO PUR SJ9356 (available from DELO Industrial Adhesives, Windach, Germany); AA4800 HF8000 MS 9399 and MS 647-2C (the latter four are available from Henkel AG&Co.KGaA in Düsseldorf, Germany). In other embodiments, the liquid adhesive comprises one or more urethane esters, such as 3M. TM Scotch-Weld TM Urethane DP640 Brown and 3M TM Scotch-Weld TM Urethane DP604, while in other embodiments, the liquid adhesive comprises one or more silicones, such as Dow 995 (available from DowCorning Corporation, Midland, Michigan).

[0032] Furthermore, in embodiments, a primer may be applied to prepare the surfaces of the glass plate 12 and the carrier 26 to have better adhesion. Alternatively, or instead of applying a primer, in embodiments, the carrier 26 may be roughened to provide better adhesion between the adhesive 24 and the carrier 26. Additionally, in embodiments, an ink primer may be used in addition to, or instead of, a primer for metal and glass surfaces. Ink primers help provide better adhesion between the adhesive 24 and the ink-covered surface (e.g., the pigment design mentioned above for no-topcoat). An example of a primer is 3M. TM Scotch-Weld TM Metal primer 3901 (available from 3M Inc., St. Paul, Minnesota); other commercially available primers are also applicable to this disclosure and may be selected based on the surfaces involved in the bonding and the adhesive used to create the bonding.

[0033] Using adhesive 24 and a cold forming process (described below), carrier 26 holds the glass plate 12 in a curved shape. Carrier 26 is also configured as a frame for attachment to the vehicle interior system, such as... Figure 1 The vehicle interior systems are 100, 200, and 300. For example... Figure 2A As shown, the height H of the carrier 26 corresponds to the dimension of the carrier 26 perpendicular to the glass plate 12. In the embodiment, the height H is from 5 mm to 20 mm, more specifically from 8 mm to 12 mm, and specifically about 10 mm.

[0034] In one embodiment, one or more displays 25 are mounted to the second main surface 16 of the glass plate 12. As described above, the displays 25 may be, for example, LED, OLED, LCD, or plasma displays. Furthermore, in this embodiment, the displays 25 have touch functionality. In this embodiment, the displays 25 are adhered to the second main surface 16 of the glass plate 12 using an optically transparent adhesive 27.

[0035] Figure 2B The rear surface of the V-shaped glass article 10, namely the second main surface 16, is shown. In this embodiment, the carrier 26 defines a closed or substantially closed shape. For example, as... Figure 2B As shown, the carrier 26 defines a closed quadrilateral shape having a first longitudinal strip 28, a second longitudinal strip 30, a first lateral strip 32, and a second lateral strip 34. As used herein, "longitudinal" refers to the longest side of the glass plate 12 and the side opposite to it. In an embodiment, the glass plate 12 is cold-bent along its longitudinal side. Therefore, for Figure 2BThe rectangular glass plate 12 shown has opposite sides of equal length, with longitudinal strips 28 and 30 extending close to and substantially parallel to the two longest sides of the glass plate 12. As used herein, "lateral" refers to strips 32 and 34 of the carrier 26 extending between longitudinal strips 28 and 30. Additionally, in embodiments, lateral strips 32 and 34 extend perpendicular to the curvature of the cold-bent glass plate 12. In embodiments, lateral strips 32 and 24 connect longitudinal strips 28 and 30 to define a closed shape, and in other embodiments, lateral strips 32 and 34 do not connect longitudinal strips 28 and 30 but still define a substantially closed shape. As used herein, "substantially closed shape" means that the lateral strips 32 and 34 are no more than 10 mm, particularly no more than 5 mm, from the longitudinal strips 28 and 30 (at one or both ends). Return Figure 2B In the embodiment shown, strips 28, 30, 32, and 34 define a rectangular shape for the carrier 26. The first longitudinal strip 28 is substantially parallel to the second longitudinal strip 30 and is spatially separated from the second longitudinal strip 30, while the first lateral strip 32 is substantially parallel to the second lateral strip 34 and is spatially separated from the second lateral strip 34.

[0036] Despite Figure 2A and Figure 2B The embodiments depicted include a glass plate 12 defining a quadrilateral perimeter, but the shape of the glass plate 12 is not limited thereto. In other embodiments, the glass plate 12 may have a perimeter including a curved side, a straight side, or both a curved side and a straight side. In any such embodiment, the carrier 26 defines a closed or substantially closed shape that extends across the curved region 20 of the glass article 10 and into the flat sections 22a, 22b.

[0037] As will be discussed more fully below, the applicant has found that the four strips provided in a closed or substantially closed shape are the minimum necessary to keep the shape deviation of the curved region 20 of the glass plate with a radius of curvature as low as 250 mm within ±0.3 mm. As shown and discussed with respect to other embodiments, additional longitudinal or lateral strips may be provided to provide further support for the glass plate 12 and further reduce shape deviation.

[0038] In addition to the number of strips 28, 30, 32, and 34, the thickness and position of the strips must also be considered in the design of the carrier 26, especially to ensure the reliability of the components during operation. Specifically, based on the elasticity of the glass plate 12, the cold-bent glass article 10 will apply stress to the adhesive 24, which will cause the glass plate 12 to spring back to its planar structure. Furthermore, the different thermal expansion of the glass plate 12 and the carrier 26 causes stress on the adhesive 24, so that when exposed to temperature limits, the carrier 26 tends to expand or contract more than the glass plate 12, thus stressing the adhesive 24. Therefore, in order to provide a reliable bond between the glass plate 12 and the carrier 26, the carrier 26 needs to have a sufficient surface area bonded to the glass plate 12 in specific regions.

[0039] Therefore, as described above, the carrier 26 extends at least partially into the flat sections 22a, 22b of the glass plate 12, such that the longitudinal strips 28, 30 extend across the curved region 20 and into the flat sections 22a, 22b. In one embodiment, the longitudinal strips 28, 30 extend 10 mm or less into each flat section 22a, 22b. In other embodiments, the longitudinal strips 28, 30 extend 8 mm or less into the flat sections 22a, 22b, and in other embodiments, the longitudinal strips 28, 30 extend 5 mm or less into the flat sections 22a, 22b, particularly about 4 mm. Additionally, in one embodiment, the width W of the longitudinal strips 28, 30... long It should be 2mm or smaller, especially 1mm or smaller, to provide a large display area.

[0040] In this embodiment, the lateral strips 32 and 34 are positioned at the ends of the longitudinal strips 28 and 30. In this embodiment, the width W of the lateral strips 32 and 34... lat The longitudinal strips 28 and 30 extend from their edges across the boundary between the flat section 22a or 22b and the curved region 20. In one embodiment, the lateral strips 32 and 34 extend into the curved region 20 by 10 mm or less. In another embodiment, the lateral strips 32 and 34 extend into the curved region 20 by 8 mm or less. And in other embodiments, the lateral strips 32 and 34 extend into the curved region 20 by 5 mm or less, particularly about 4 mm. Therefore, in one embodiment, the width W of the lateral strips 32 and 34 is... lat For 20mm or less, 16mm or less, 10mm or less, especially about 8mm.

[0041] In other embodiments, multiple lateral strips 32, 34 may be provided, wherein the width W of each strip 32, 34 is... lat For 2mm or smaller, especially 1mm or smaller. Figure 3Such an embodiment is depicted. As can be seen, each end of the longitudinal strips 28, 30 includes a lateral strip 32a, 34a at each end and another lateral strip 32b, 34b, which is substantially parallel to the lateral strips 32a, 32b and is spatially separated from the lateral strips 32a, 32b and located near the boundary between the curved region 20 and the flat sections 22a, 22b.

[0042] Figure 4A An embodiment of a C-shaped glass article 40 is depicted. The C-shaped glass article 40 also includes a glass plate 12. Figure 2A and Figure 2B The V-shaped glass products are the same as 10. Figure 4A The glass plate 12 of the C-shaped glass article 40 has a first main surface 14 and a second main surface 16, which define a thickness T and are joined to a secondary surface 18. The C-shaped glass article 40 also has a curved region 20 and flat sections 22a, 22b. Compared to the V-shaped glass article 10, the C-shaped glass article 40 has a much larger curved region 20 and much smaller flat sections 22a, 22b. Figure 4A As can be seen, the carrier 26 is attached to the second main surface 16 by adhesive 24. Because the curved region 20 is much larger than in the previously discussed embodiments, the longitudinal strips 28, 30 of the carrier 26 extend substantially along the entire length of each longitudinal side, as shown in the image. Figure 4B As shown.

[0043] The structures of glass articles 10 and 40 have been described, and various structures of glass articles 10 and 40 have been experimentally studied and simulated. Figures 5A-5D Various structures of the carrier 26 used for the V-shaped glass article 10 are depicted. Figure 5A An embodiment of a carrier having only two longitudinal strips is depicted. Figure 5B An embodiment of a carrier 26 having a rectangular shape according to the present disclosure is depicted, the rectangular shape having two longitudinal strips 28, 30 and two lateral strips 32, 34. Figure 5C An embodiment of carrier 26 according to this disclosure is depicted, which is substantially similar to... Figure 5B The only difference is the carrier in the middle. Figure 5C The carrier 26 has a third longitudinal strip 36 disposed at approximately halfway between the first longitudinal strip 28 and the second longitudinal strip 30. Figure 5D An embodiment of carrier 26 according to this disclosure is depicted, which is substantially similar to... Figure 5C The carrier 26, the only difference is Figure 5DThe carrier includes a third lateral strip 38 disposed approximately halfway between the first lateral strip 32 and the second lateral strip 34. The third lateral strip 38 intersects with and is substantially perpendicular to the third longitudinal strip 36.

[0044] Figure 6A Depicting Figure 5A The carrier is attached to the second main surface of the glass plate. Figures 6B to 6D Depicted respectively Figures 5B-5D The carrier 26 is bonded to the second main surface 16 of the glass plate 12. For example, in... Figure 6A Comparative examples and basis Figures 6B-6D As can be seen in the embodiments of this disclosure, the second main surface 16 includes a display area 41 and a shielding area 42. The display mounted on the second main surface 16 of the glass plate 12 is visible through the display area 41, and the shielding area 42 covers the edge of the display, which may include wiring, circuit boards, or mounting features used by the display. Overall, the carrier 26 is designed to allow maximum use of the display area 41 while still preventing large shape deviations and providing mechanical reliability.

[0045] in this regard, Figure 7 Depicting the Figure 6A Comparative examples and Figure 6B and 6C A table comparing shape deviations of embodiments of the present disclosure is shown. Figure 7 Consider a glass product with a glass plate of 0.7 mm thickness, wherein the carrier has a uniform thickness of 1 mm and a height of 10 mm. Figure 7 The table includes both the shape deviations obtained from the numerical model and those determined experimentally. The table shows that the numerical model and experimental results agree very well. First, referring to a comparative example consisting of only two longitudinal strips extending 40 mm into the flat section of the glass plate and forming a radius of curvature of approximately 320 mm, the table shows that the comparative example exhibits a significant shape deviation at the center of the glass plate in the flat section immediately adjacent to the curved region. Specifically, the glass plate exhibits a bowl-shaped deviation, with the deepest part of the bowl reaching a depth of 0.45 mm or greater.

[0046] When considering the examples according to this disclosure, the shape deviation is never greater than 0.3 mm, based on the model or experimental data, particularly in the flat sections 22a and 22b. For the rectangular embodiment ( Figure 6B ), Figure 7 The table considers longitudinal bars 28 and 30, which extend 18 mm into the flat sections 22a and 22b, with a radius of curvature of approximately 260 mm. The model substantially shows no shape deviation, and experimental data show only a small regional deviation of 0.3 mm. For the rectangular embodiment with a third longitudinal bar ( Figure 6C), Figure 7 The table considers longitudinal bars 28, 30, and 36, which extend 18 mm into the flat sections 22a and 22b and have a radius of curvature of approximately 250 mm. In this example, both the model and experimental data show no shape deviation. Therefore, Figure 7 The table shows that the rectangular shape of the carrier 26 can prevent shape deviations greater than 0.3 mm in the glass plate 12, especially in the flat sections 22a and 22b.

[0047] To confirm the effect of the carrier's shape on shape deviation, a numerical model was also used to study the extent to which the carrier extends into the flat section. Figure 8 The table described takes into account the following: Figure 6A Comparative examples and Figure 6B and 6C In an exemplary embodiment, the extent to which the carrier extends into the flat section varies. Again, the numerical modeling considers a glass plate with a thickness of 0.7 mm. It can be seen that the comparative examples are considered to extend into the flat section by 1 mm, 20 mm, and 40 mm. It can be seen that the shape deviation is greater as the longitudinal strip of the comparative examples extends further into the flat section. To quantify the amount of glass plate that maintains a shape deviation within ±0.3 mm, the metric of "in-spec area" is used, which refers to the percentage of the surface area of ​​the glass plate with a shape deviation of 0.3 mm or less. For the 40 mm extension, the comparative examples show only 80% in-spec area, while for the 20 mm extension, only 82% in-spec area is shown. The maximum in-spec area of ​​the comparative examples is 92%, with an extension length of 1 mm into the flat section. Although it is somewhat counterintuitive that reducing the extension into the flat area would increase the in-spec area, as provided by the embodiment of carrier 26 according to this disclosure, glass articles in which the longitudinal strip does not extend into the flat section or does not extend across the entire curved area will still not achieve 100% in-spec area.

[0048] Figure 8 The expression shows that it has such Figure 5B and 5C The modeling data for the glass product 10 on the carrier 26 shown. For Figure 5B The rectangular carrier 26 takes into account extensions of 1mm, 10mm, and 20mm into the flat section. Figure 8 As can be seen, for each of these examples, the qualified area is 100%. For Figure 5C The rectangular carrier 26 takes into account extensions of 10mm and 20mm into the flat section. Again, for Figure 8 The two examples shown have a qualified area of ​​100%. Therefore, considering... Figure 7 and 8The applicant found that the shape of the carrier 26 was the determining factor for the shape deviation. Not wanting to be bound by theory, the applicant believes that the comparative example has a greater shape deviation because the carrier only provides four points of curvature over the width of the glass plate, while the additional lateral strips 32, 34 of the disclosed carrier 26 provide four points of curvature over the entire width of the glass plate 12.

[0049] As described above, the carrier 26 should not only provide minimal shape deviation for the glass plate 12, but the bond between the carrier 26 and the glass plate 12 should also be mechanically reliable, especially resistant to stress caused by temperature changes. To provide mechanical reliability without sacrificing display area, the applicant investigated the widths of the lateral strips 32 and 34. Figure 9 A graph depicts the width (x-axis) of the lateral strips 32, 34 in the flat sections 22a, 22b of a glass article 10 relative to the width (y-axis) of the lateral strips 32, 34 in the central region 20, wherein the glass article has a 0.7 mm thick glass plate 12, which is bent with a radius of curvature of 250 mm and subjected to thermal stress associated with a temperature of 95°C. For example, in the graph, the point (4 mm, 2.5 mm) would correspond to lateral strips 32, 34 having a width of 6.5 mm, extending 4 mm into the flat sections 22a, 22b from the boundary between the flat sections 22a, 22b and the curved region 20. Such lateral strips 32, 34 would also extend 2.5 mm into the curved region 20. Figure 9 In this study, the lateral strips 32 and 34 are considered to extend to multiple points in the flat sections 22a and 22b and / or the curved region 20.

[0050] As can be seen from the depicted embodiment (0.7mm thick glass plate, rectangular carrier), the applicant has determined the minimum width of the lateral strips 32 and 34 to provide mechanical reliability for the glass plate bent with a radius of curvature of 250mm. Specifically, the width W... lat The width is 8mm, 4mm in the flat sections 22a and 22b, and 4mm in the curved section 20. It has a width W of... lat The glass article 10 of the carrier 26 of the side strips 32, 34 is able to withstand typical stresses associated with cold forming and temperature fluctuations (including safety factors). Figure 9 The boxed area in the "Mechanical Reliability" zone offers a good trade-off between reliability and maximizing the display area.

[0051] Minimum width W of lateral strips 32 and 24 lat It will vary depending on other factors. For example, for the same radius of curvature, a relatively thicker glass plate 12 requires a larger minimum width W than a relatively thinner glass plate 12. latFor the same radius of curvature and glass thickness, if the carrier 26 includes additional reinforcing features such as a third longitudinal strip 36 or a third lateral strip 38, then the minimum width W is considered to be smaller. lat It is necessary. Additionally, for larger radii of curvature, the width W... lat The width W can be smaller (e.g., all other things being equal, for a glass article 10 with a radius of curvature of 400 mm instead of 250 mm). lat (It can be smaller).

[0052] Figure 10A and 10B An exemplary embodiment for forming a rectangular carrier 26 is depicted. In an embodiment of the rectangular carrier, the carrier 26 is formed from a single strip of material, bent into a rectangular structure, and welded. Welding can be performed with or without the overlap 44. Figure 10A An embodiment of a carrier 26 is depicted, which has an overlap 44 formed at the location of the weld. Figure 10B An embodiment is depicted as a carrier 26 formed without overlap. Figure 10B In one embodiment, the ends of the strips are complementary and interlocking. The ends interlock and form multiple weld points 46 to connect the ends. In embodiments where the carrier 26 is formed from strips, the strips may be, for example, laser-cut, molded, or machined. In one embodiment, additional longitudinal or lateral strips can be attached to the rectangular carrier 26 by spot welding the strips to the carrier after the rectangle has been formed. In other embodiments, the carrier 26 may be made from die-cast strips used to form the carrier 26. In such embodiments, additional longitudinal or lateral strips may be formed during die casting or welded to the rectangular carrier after die casting.

[0053] Figure 11 Another variation of the carrier 26 is depicted, which can reduce stress in the adhesive 24. This variation includes chamfering at least the longitudinal strips 28, 30 of the carrier 26. Although in other embodiments, all strips 28, 30, 32, 34 may be chamfered. In the illustrated embodiment, the longitudinal strips 28, 30 of the carrier 26 have overhanging edges 48, which are formed or machined to provide angled surfaces 50. The angle α of this surface ranges from 20° to 60°, more specifically from 30° to 45°, and specifically about 34° (e.g., 33° to 35°). Furthermore, the chamfers face inwards towards the carrier 26, i.e., the angled surfaces 50 of each longitudinal strip 28, 30 face each other.

[0054] Furthermore, in the embodiments, the carriers 26 of both the V-shaped glass article 10 and the C-shaped glass article 40 are made of a material having a CTE that matches the CTE of the glass plate 12. The matched CTE reduces thermal stress. Thermal expansion occurs in the adhesive 24 due to the difference in thermal expansion between the glass plate 12 and the carrier 26. Typically, the CTE of the glass plate 12 is approximately 8 (10⁻⁶). -6 ) / ℃. Therefore, in the embodiment, carrier 26 is selected such that its CTE is approximately 8 (10) / ℃. -6 ) / ℃ and about 40(10 -6 Between ) / ℃, more specifically between approximately 8 (10)℃. -6 ) / ℃ and about 22(10 -6 Between 8 (10) / ℃, or even more specifically between 8 (10) / ℃. -6 ) / ℃ and about 15(10 -6 Between ) / ℃, most specifically at approximately 8 (10)℃. -6 ) / ℃ and about 15(10 -6 Between ) / ℃. In an embodiment, when the adhesive is selected to have a bonding strength greater than the combined shear stress and flexural stress, the carrier 26 may be made of an adhesive having 8(10) / ℃. -6 ) / ℃ and 40(10 -6 The carrier material can be made of any material with a CTE between 0.5°C and 0.5°C. Therefore, a wide variety of metallic materials can be used, including steel (especially stainless steel, galvanized steel, and other corrosion-resistant steels), iron-nickel alloys, aluminum and its alloys, and magnesium and its alloys. Furthermore, the carrier material can be a plastic or composite material, such as a fiber-reinforced plastic composite having fibers (e.g., glass fiber, carbon fiber, aramid fiber, and / or graphite fiber) embedded in epoxy resins (e.g., epoxy resin, polycarbonate, acrylic, polyester, polyether ketone ketone (PEKK), polycarbonate / acrylonitrile butadiene styrene (PC / ABS), polypropylene, and / or phenolic resin). This allows for selection of carrier materials and adhesives from a wide range of materials, enabling design and economic flexibility.

[0055] As briefly mentioned above, the glass sheet 12 is attached to the carrier 26 by a cold forming method. Cold forming refers to introducing the curved region 20 into the glass sheet 12 at a temperature below the softening temperature of the glass. More specifically, cold forming is performed below 200°C, below 100°C, or even at room temperature. During cold forming, pressure is applied to the glass sheet 12 to maintain its shape conforming to the carrier 26. Pressure can be applied in various ways, such as vacuum pressure, mechanical presses, or rollers. In this embodiment, pressure is maintained on the glass sheet 12 until the adhesive 24 cures (at least sufficiently to prevent the glass sheet 12 from detaching from the carrier 26). Thereafter, the glass sheet 12 is bonded to the carrier 26, and the glass articles 10, 40 can be transported and / or installed as part of a vehicle interior system.

[0056] The following paragraphs provide various geometric properties of glass plate 12 and its composition. (Reference) Figure 12 The glass plate 12 has a substantially constant thickness T1, which is defined as the distance between the first main surface 14 and the second main surface 16. In various embodiments, T1 may refer to the average thickness or maximum thickness of the glass plate. Additionally, the glass plate 12 includes: a width W1, defined as a first maximum dimension of one of the first main surface 14 or the second main surface 16 orthogonal to the thickness T1; and a length L1, defined as a second maximum dimension of one of the first main surface 14 or the second main surface 16. The second main surfaces 14, 16 are perpendicular to the thickness and width. In other embodiments, W1 and L1 may be the average width and average length of the glass plate 12, respectively, and in other embodiments, W1 and L1 may be the maximum width and maximum length of the glass plate 12, respectively (e.g., for a glass plate 14 with variable width or length).

[0057] In various embodiments, the thickness T1 is 2 mm or less, and specifically from 0.3 mm to 1.1 mm. For example, the thickness T1 can be from about 0.1 mm to about 1.5 mm, from about 0.15 mm to about 1.5 mm, from about 0.2 mm to about 1.5 mm, from about 0.25 mm to about 1.5 mm, from about 0.3 mm to about 1.5 mm, from about 0.35 mm to about 1.5 mm, from about 0.4 mm to about 1.5 mm, from about 0.45 mm to about 1.5 mm, from about 0.5 mm to about 1.5 mm, from about 0.55 mm to about 1.5 mm, from about 0.6 mm to about 1.5 mm, from about 0.65 mm to about 1.5 mm, from about 0.7 mm to about 1.5 mm, from about 0.1 mm to about 1.4 mm, from about 0.1 mm to about 1.3 mm, and from about 0. The value T1 is within the range of approximately 1 mm to 1.2 mm, approximately 0.1 mm to 1.1 mm, approximately 0.1 mm to 1.05 mm, approximately 0.1 mm to 1 mm, approximately 0.1 mm to 0.95 mm, approximately 0.1 mm to 0.9 mm, approximately 0.1 mm to 0.85 mm, approximately 0.1 mm to 0.8 mm, approximately 0.1 mm to 0.75 mm, approximately 0.1 mm to 0.7 mm, approximately 0.1 mm to 0.65 mm, approximately 0.1 mm to 0.6 mm, approximately 0.1 mm to 0.55 mm, approximately 0.1 mm to 0.5 mm, approximately 0.1 mm to 0.4 mm, or approximately 0.3 mm to 0.7 mm. In other embodiments, T1 falls within any of the exact numerical ranges set forth in this paragraph.

[0058] In various embodiments, the width W1 ranges from 5cm to 250cm, from about 10cm to about 250cm, from about 15cm to about 250cm, from about 20cm to about 250cm, from about 25cm to about 250cm, from about 30cm to about 250cm, from about 35cm to about 250cm, from about 40cm to about 250cm, from about 45cm to about 250cm, from about 50cm to about 250cm, from about 55cm to about 250cm, from about 60cm to about 250cm, from about 65cm to about 250cm, from about 70cm to about 250cm, from about 75cm to about 250cm, from about 80cm to about 250cm, and from about 85cm... From approximately 250cm, from approximately 90cm to approximately 250cm, from approximately 95cm to approximately 250cm, from approximately 100cm to approximately 250cm, from approximately 110cm to approximately 250cm, from approximately 120cm to approximately 250cm, from approximately 130cm to approximately 250cm, from approximately 140cm to approximately 250cm, from approximately 150cm to approximately 250cm, from approximately 5cm to approximately 240cm, from approximately 5cm to approximately 230cm, from approximately 5cm to approximately 220cm, from approximately 5cm to approximately 210cm, from approximately 5cm to approximately 200cm, from approximately 5cm to approximately 190cm, from approximately 5cm to approximately 180cm, from approximately 5cm to approximately 170cm, from approximately 5cm to approximately 160cm The range is approximately 5 cm to approximately 150 cm, approximately 5 cm to approximately 140 cm, approximately 5 cm to approximately 130 cm, approximately 5 cm to approximately 120 cm, approximately 5 cm to approximately 110 cm, approximately 5 cm to approximately 110 cm, approximately 5 cm to approximately 100 cm, approximately 5 cm to approximately 90 cm, approximately 5 cm to approximately 80 cm, or approximately 5 cm to approximately 75 cm. In other embodiments, W1 falls within any of the exact numerical ranges set forth in this paragraph.

[0059] In various embodiments, the length L1 ranges from about 5 cm to about 1500 cm, from about 50 cm to about 1500 cm, from about 100 cm to about 1500 cm, from about 150 cm to about 1500 cm, from about 200 cm to about 1500 cm, from about 250 cm to about 1500 cm, from about 300 cm to about 1500 cm, from about 350 cm to about 1500 cm, from about 400 cm to about 1500 cm, from about 450 cm to about 1500 cm, from about 500 cm to about 1500 cm, from about 550 cm to about 1500 cm, from about 600 cm to about 1500 cm, from about 650 cm to about 1500 cm, from about 700 cm to about 1500 cm. The range is 500cm, from about 750cm to about 1500cm, from about 800cm to about 1500cm, from about 850cm to about 1500cm, from about 900cm to about 1500cm, from about 950cm to about 1500cm, from about 1000cm to about 1500cm, from about 1050cm to about 1500cm, from about 1100cm to about 1500cm, from about 1150cm to about 1500cm, from about 1200cm to about 1500cm, from about 1250cm to about 1500cm, from about 1300cm to about 1500cm, from about 1350cm to about 1500cm, from about 1400cm to about 1500cm, or from about 1450cm to about 1500cm. In other embodiments, L1 falls within any of the exact numerical ranges set forth in this paragraph.

[0060] In various embodiments, one or more radii of curvature of the glass plate 12 (e.g., Figure 2A and 4AThe R shown is approximately 20 mm or greater. For example, R can be approximately 20 mm to approximately 10,000 mm, from approximately 30 mm to approximately 10,000 mm, from approximately 40 mm to approximately 10,000 mm, from approximately 50 mm to approximately 10,000 mm, from approximately 60 mm to approximately 10,000 mm, from approximately 70 mm to approximately 10,000 mm, from approximately 80 mm to approximately 10,000 mm, from approximately 90 mm to approximately 10,000 mm, from approximately 100 mm to approximately 10,000 mm, from approximately 120 mm to approximately 10,000 mm, from approximately 140 mm to approximately 10,000 mm, from approximately 150 mm to approximately 10,000 mm, from approximately 160 mm to approximately 10,000 mm, and from approximately 180 mm... From about 200 mm to about 10,000 mm, from about 220 mm to about 10,000 mm, from about 240 mm to about 10,000 mm, from about 250 mm to about 10,000 mm, from about 260 mm to about 10,000 mm, from about 270 mm to about 10,000 mm, from about 280 mm to about 10,000 mm, from about 290 mm to about 10,000 mm, from about 300 mm to about 10,000 mm, from about 350 mm to about 10,000 mm, from about 400 mm to about 10,000 mm, from about 450 mm to about 10,000 mm, from about 500 mm to about 10, 000mm, from about 550mm to about 10,000mm, from about 600mm to about 10,000mm, from about 650mm to about 10,000mm, from about 700mm to about 10,000mm, from about 750mm to about 10,000mm, from about 800mm to about 10,000mm, from about 900mm to about 10,000mm, from about 950mm to about 10,000mm, from about 1000mm to about 10,000mm, from about 1250mm to about 10,000mm, from about 20mm to about 1400mm, from about 20mm to about 1300mm, from about 20mm to about 1200mm, from about 20mm Within the range of about 1100 mm, from about 20 mm to about 1000 mm, from about 20 mm to about 950 mm, from about 20 mm to about 900 mm, from about 20 mm to about 850 mm, from about 20 mm to about 800 mm, from about 20 mm to about 750 mm, from about 20 mm to about 700 mm, from about 20 mm to about 650 mm, from about 20 mm to about 600 mm, from about 20 mm to about 550 mm, from about 20 mm to about 500 mm, from about 20 mm to about 450 mm, from about 20 mm to about 400 mm, from about 20 mm to about 350 mm, from about 20 mm to about 300 mm, or from about 20 mm to about 250 mm.In other embodiments, R1 falls within any of the exact numerical ranges set forth in this paragraph.

[0061] Various embodiments of the vehicle interior system can be incorporated into vehicles such as trains, automobiles (e.g., cars, trucks, buses, etc.), marine vehicles (ships, vessels, submarines, etc.) and aircraft (e.g., drones, airplanes, jet aircraft, helicopters, etc.).

[0062] Strengthening glass properties

[0063] As described above, the glass plate 12 can be strengthened. In one or more embodiments, the glass plate 12 can be strengthened to include compressive stress extending from the surface to the depth of compression (DOC). The compressive stress region is balanced by a central portion exhibiting tensile stress. At the DOC, the stress changes from positive (compressive) stress to negative (tensile) stress.

[0064] In various embodiments, the glass plate 12 can be mechanically strengthened by utilizing the mismatch in the coefficients of thermal expansion between different parts of the article to create compressive stress regions and a central region exhibiting tensile stress. In some embodiments, the glass plate can be thermally strengthened by heating the glass to a temperature above its glass transition point and then rapidly quenching it.

[0065] In various embodiments, the glass plate 12 can be chemically strengthened by ion exchange. During ion exchange, ions on or near the surface of the glass plate are replaced (or exchanged) by larger ions having the same valence or oxidation state. In embodiments where the glass plate comprises alkali metal aluminosilicate glass, the ions and larger ions in the surface layer of the article are monovalent alkali metal cations, such as Li. + Na + K + 、Rb + and Cs + Alternatively, the monovalent cations in the surface layer can be replaced with monovalent cations other than alkali metal cations, such as Ag. + In such embodiments, monovalent ions (or cations) exchanged into the glass plate generate stress.

[0066] Ion exchange processes are typically carried out by immersing a glass plate in a molten salt bath (or two or more molten salt baths) containing larger ions, which exchange with smaller ions on the glass plate. It should be noted that aqueous salt solutions can also be used. Furthermore, the composition of the bath can include more than one type of larger ion (e.g., Na+). + and K +(or a single, larger ion). Those skilled in the art will recognize that the parameters of the ion exchange process (including, but not limited to, bath composition and temperature, immersion time, number of immersions of the glass plate in one or more salt baths), the use of multiple salt baths, and additional steps such as annealing and washing, are generally determined by the composition of the glass plate (including the structure of the article and any crystalline phases present) and the desired DOC and CS of the glass obtained from the strengthening. Exemplary molten pool compositions may include nitrates, sulfates, and chlorides of larger alkali metal ions. Typical nitrates include KNO3, NaNO3, LiNO3, NaSO4, and combinations thereof. The temperature of the molten salt bath is typically in the range of about 380°C to about 450°C, while the immersion time is in the range of about 15 minutes to about 100 hours, depending on the thickness of the glass plate, the bath temperature, and the diffusivity of the glass (or monovalent ion). However, different temperatures and immersion times may also be used.

[0067] In one or more embodiments, the glass plate may be immersed in a molten salt bath of 100% NaNO3, 100% KNO3, or a combination of NaNO3 and KNO3 at a temperature from about 370°C to about 480°C. In some embodiments, the glass plate may be immersed in a molten mixed salt bath containing about 5% to about 90% KNO3 and about 10% to about 95% NaNO3. In one or more embodiments, the glass plate may be immersed in a second bath after immersion in a first bath. The first and second baths may have different compositions and / or temperatures than each other. The immersion time in the first and second baths may vary. For example, immersion in the first bath may be longer than immersion in the second bath.

[0068] In one or more embodiments, the glass plate may be immersed in a molten mixed salt bath comprising NaNO3 and KNO3 (e.g., 49% / 51%, 50% / 50%, 51% / 49%) at a temperature below about 420°C (e.g., about 400°C or about 380°C) for less than about 5 hours, or even about 4 hours or less.

[0069] Ion exchange conditions can be adjusted to provide a “spiking” or increase the slope of the stress distribution on or near the surface of the resulting glass plate. Spikes may result in a larger surface CS value. Due to the unique properties of the glass composition used in the glass plates described herein, this spike can be achieved through a single bath or multiple baths, where one or more baths have a single composition or a mixture of compositions.

[0070] In one or more embodiments, when more than one monovalent ion is exchanged into the glass plate, different monovalent ions can be exchanged to different depths within the glass plate (and generate stresses of different magnitudes at different depths within the glass plate). The relative depths of the stress-generating ions can be determined, leading to different characteristics of the stress distribution.

[0071] CS is measured using methods known in the art, such as by using a surface stress meter (FSM) with a commercially available instrument, such as the FSM-6000 manufactured by Orihara Industrial Co., Ltd. (Japan). Surface stress measurement relies on the accurate measurement of the stress optical coefficient (SOC) associated with the birefringence of the glass. SOC is measured sequentially by methods known in the art, such as the fiber optic method and the four-point bending method, both of which are described in ASTM standard C770-98 (2013) entitled "Standard Test Method for Measurement of Glass Stress - Optical Coefficient," the contents of which are incorporated herein by reference in their entirety, and also by the volume cylinder method. As used herein, CS can be "maximum compressive stress," which is the highest compressive stress value measured within the compressive stress layer. In some embodiments, the maximum compressive stress is located at the surface of the glass plate. In other embodiments, the maximum compressive stress may occur at a depth below the surface, thus giving the compression profile a "buried peak" appearance.

[0072] DOC can be measured using either a fractional light scintillation (FSM) or a supersonic optical polarizer (SCALP) (such as the SCALP-04 supersonic optical polarizer available from Glassstress Ltd. in Tallinn, Estonia), depending on the strengthening method and conditions. When a glass plate is chemically strengthened by ion exchange, either FSM or SCALP can be used, depending on which ions are exchanged into the glass plate. In cases where stress is generated in the glass plate by exchanging potassium ions, FSM is used to measure DOC. In cases where stress is generated by exchanging sodium ions into the glass plate, SCALP is used to measure DOC. If stress in the glass plate is generated by exchanging both potassium and sodium ions into the glass, DOC can be measured by SCALP, because the exchange depth of sodium is believed to represent DOC, while the exchange depth of potassium ions represents the change in compressive stress (but not the change in stress from compressive to tensile); the exchange depth of potassium ions in such a glass plate is measured by FSM. Central tension, or CT, is the maximum tensile stress and is measured by SCALP.

[0073] In one or more embodiments, the glass plate may be strengthened to exhibit a DOC, which is described as a portion of the thickness T1 of the glass plate 12 (as described herein). For example, in one or more embodiments, the DOC may be equal to or greater than about 0.05T1, equal to or greater than about 0.1T1, equal to or greater than about 0.11T1, equal to or greater than about 0.12T1, equal to or greater than about 0.13T1, equal to or greater than about 0.14T1, equal to or greater than about 0.15T1, equal to or greater than about 0.16T1, equal to or greater than about 0.17T1, equal to or greater than about 0.18T1, equal to or greater than about 0.19T1, equal to or greater than about 0.2T1, or equal to or greater than about 0.21T1. In some embodiments, the DOC can be in the range of about 0.08T1 to about 0.25T1, about 0.09T1 to about 0.25T1, about 0.10T1 to about 0.25T1, about 0.11T1 to about 0.25T1, about 0.12T1 to about 0.25T1, about 0.13T1 to about 0.25T1, about 0.14T1 to about 0.25T1, about 0.15T1 to about 0.25T1, or about 0.08T1 to about 0. The range is 24T1, from about 0.08T1 to about 0.23T1, from about 0.08T1 to about 0.22T1, from about 0.08T1 to about 0.21T1, from about 0.08T1 to about 0.2T1, from about 0.08T1 to about 0.19T1, from about 0.08T1 to about 0.18T1, from about 0.08T1 to about 0.17T1, from about 0.08T1 to about 0.16T1, or from about 0.08T1 to about 0.15T1. In some cases, DOC may be about 20 μm or smaller.In one or more embodiments, DOC may be about 40 μm or greater (e.g., from about 40 μm to about 300 μm, from about 50 μm to about 300 μm, from about 60 μm to about 300 μm, from about 70 μm to about 300 μm, from about 80 μm to about 300 μm, from about 90 μm to about 300 μm, from about 100 μm to about 300 μm, from about 110 μm to about 300 μm, from about 120 μm to about 300 μm, from about 140 μm to about 300 μm, from about 150 μm to about 300 μm, from about 40 μm to about 290 μm, from about 40 μm to about 280 μm, from about 40 μm to about 260 μm, from about 4... The range is from 0 μm to 250 μm, from about 40 μm to 240 μm, from about 40 μm to 230 μm, from about 40 μm to 220 μm, from about 40 μm to 210 μm, from about 40 μm to 200 μm, from about 40 μm to 180 μm, from about 40 μm to 160 μm, from about 40 μm to 150 μm, from about 40 μm to 140 μm, from about 40 μm to 130 μm, from about 40 μm to 120 μm, from about 40 μm to 110 μm, or from about 40 μm to 100 μm. In other embodiments, DOC falls within any of the exact numerical ranges set forth in this paragraph.

[0074] In one or more embodiments, the tempered glass plate may have a CS (which may be found at the surface or depth of the glass plate) of about 200 MPa or higher, 300 MPa or higher, 400 MPa or higher, about 500 MPa or higher, about 600 MPa or higher, about 700 MPa or higher, about 800 MPa or higher, about 900 MPa or higher, about 930 MPa or higher, about 1000 MPa or higher, or about 1050 MPa or higher.

[0075] In one or more embodiments, the tempered glass plate may have a maximum tensile stress or central tension (CT) of about 20 MPa or greater, about 30 MPa or greater, about 40 MPa or greater, about 45 MPa or greater, about 50 MPa or greater, about 60 MPa or greater, about 70 MPa or greater, about 75 MPa or greater, about 80 MPa or greater, or about 85 MPa or greater. In some embodiments, the maximum tensile stress or central tension (CT) may be in the range of about 40 MPa to about 100 MPa. In other embodiments, CT falls within the precise numerical range set forth in this paragraph.

[0076] Glass composition

[0077] Suitable glass compositions for glass plate 12 include soda-lime glass, aluminosilicate glass, borosilicate glass, borosilicate glass, alkali aluminosilicate glass, alkali borosilicate glass, and alkali borosilicate glass.

[0078] Unless otherwise stated, the glass compositions disclosed herein are described in mole percentage (mol%) based on oxide analysis.

[0079] In one or more embodiments, the amount of SiO2 that the glass composition may contain is in the range of about 66 mol% to about 80 mol%, about 67 mol% to about 80 mol%, about 68 mol% to about 80 mol%, about 69 mol% to about 80 mol%, about 70 mol% to about 80 mol%, about 72 mol% to about 80 mol%, about 65 mol% to about 78 mol%, about 65 mol% to about 76 mol%, about 65 mol% to about 75 mol%, about 65 mol% to about 74 mol%, about 65 mol% to about 72 mol%, or about 65 mol% to about 70 mol%, and all ranges and subranges therebetween.

[0080] In one or more embodiments, the glass composition comprises more than about 4 mol% or more than about 5 mol% of Al2O3. In one or more embodiments, the amount of Al2O3 contained in the glass composition is in the range of more than about 7 mol% to about 15 mol%, more than about 7 mol% to about 14 mol%, from about 7 mol% to about 13 mol%, from about 7 mol% to about 12 mol%, from about 7 mol% to about 11 mol%, from about 8 mol% to about 15 mol%, from about 9 mol% to about 15 mol%, from about 10 mol% to about 15 mol%, from about 11 mol% to about 15 mol%, or from about 12 mol% to about 15 mol%, and all ranges and subranges therebetween. In one or more embodiments, the upper limit of Al2O3 may be about 14 mol%, 14.2 mol%, 14.4 mol%, 14.6 mol%, or 14.8 mol%.

[0081] In one or more embodiments, the glass article is described as an aluminosilicate glass article or comprising an aluminosilicate glass composition. In such embodiments, the glass composition or article formed therefrom comprises SiO2 and Al2O3, rather than soda-lime silicate glass. In this respect, the amount of Al2O3 contained in the glass composition or article formed therefrom is about 2 mol% or more, 2.25 mol% or more, 2.5 mol% or more, about 2.75 mol% or more, or about 3 mol% or more.

[0082] In one or more embodiments, the glass composition comprises B2O3 (e.g., about 0.01 mol% or more). In one or more embodiments, the amount of B2O3 contained in the glass composition is in the range of about 0 mol% to about 5 mol%, from about 0 mol% to about 4 mol%, from about 0 mol% to about 3 mol%, from about 0 mol% to about 2 mol%, from about 0 mol% to about 1 mol%, from about 0 mol% to about 0.5 mol%, from about 0.1 mol% to about 5 mol%, from about 0.1 mol% to about 4 mol%, from about 0.1 mol% to about 3 mol%, from about 0.1 mol% to about 2 mol%, from about 0.1 mol% to about 1 mol%, from about 0.1 mol% to about 0.5 mol%, and all ranges and subranges therebetween. In one or more embodiments, the glass composition is substantially free of B2O3.

[0083] As used herein, the phrase “substantially free” relative to a component of a composition means that the component was not actively or intentionally added to the composition during the initial formulation process, but may be present as an impurity in an amount of less than about 0.001 mol%.

[0084] In one or more embodiments, the glass composition optionally contains P2O5 (e.g., about 0.01 mol% or more). In one or more embodiments, the glass composition contains a non-zero amount of P2O5, up to and including 2 mol%, 1.5 mol%, 1 mol%, or 0.5 mol%. In one or more embodiments, the glass composition is substantially free of P2O5.

[0085] In one or more embodiments, the glass composition may contain a total amount of R2O (which is the total amount of alkali metal oxides, such as Li2O, Na2O, K2O, Rb2O, and Cs2O) greater than or equal to about 8 mol%, greater than or equal to about 10 mol%, or greater than or equal to about 12 mol%. In some embodiments, the amount of R2O contained in the glass composition is in the range of about 8 mol% to about 20 mol%, from about 8 mol% to about 18 mol%, from about 8 mol% to about 16 mol%, from about 8 mol% to about 14 mol%, from about 8 mol% to about 12 mol%, from about 9 mol% to about 20 mol%, from about 10 mol% to about 20 mol%, from about 11 mol% to about 20 mol%, from about 12 mol% to about 20 mol%, from about 13 mol% to about 20 mol%, from about 10 mol% to about 14 mol%, or from about 11 mol% to about 13 mol%, and all ranges and subranges therein. In one or more embodiments, the glass composition may be substantially free of Rb₂O, Cs₂O, or both Rb₂O and Cs₂O. In one or more embodiments, R₂O may comprise only the total amount of Li₂O, Na₂O, and K₂O. In one or more embodiments, the glass composition may contain at least one alkali metal oxide selected from Li₂O, Na₂O, and K₂O, wherein the alkali metal oxide is present in an amount greater than about 8 mol% or higher.

[0086] In one or more embodiments, the glass composition contains Na₂O in an amount greater than or equal to about 8 mol%, greater than or equal to about 10 mol%, or greater than or equal to about 12 mol%. In one or more embodiments, the composition contains Na₂O in the range of about 8 mol% to about 20 mol%, from about 8 mol% to about 18 mol%, from about 8 mol% to about 16 mol%, from about 8 mol% to about 14 mol%, from about 8 mol% to about 12 mol%, from about 9 mol% to about 20 mol%, from about 10 mol% to about 20 mol%, from about 11 mol% to about 20 mol%, from about 12 mol% to about 20 mol%, from about 13 mol% to about 20 mol%, from about 10 mol% to about 14 mol%, or from 11 mol% to about 16 mol%, and all ranges and subranges therein.

[0087] In one or more embodiments, the glass composition contains less than about 4 mol% K2O, less than about 3 mol% K2O, or less than about 1 mol% K2O. In some cases, the amount of K₂O contained in the glass composition may be in the range of about 0 mol% to about 4 mol%, about 0 mol% to about 3.5 mol%, about 0 mol% to about 3 mol%, about 0 mol% to about 2.5 mol%, about 0 mol% to about 2 mol%, about 0 mol% to about 1.5 mol%, about 0 mol% to about 1 mol%, about 0 mol% to about 0.5 mol%, about 0 mol% to about 0.2 mol%, about 0 mol% to about 0.1 mol%, about 0.5 mol% to about 4 mol%, about 0.5 mol% to about 3.5 mol%, about 0.5 mol% to about 3 mol%, about 0.5 mol% to about 2.5 mol%, about 0.5 mol% to about 2 mol%, about 0.5 mol% to about 1.5 mol%, or about 0.5 mol% to about 1 mol%, and all ranges and subranges therebetween. In one or more embodiments, the glass composition may be substantially free of K₂O.

[0088] In one or more embodiments, the glass composition is substantially free of Li2O.

[0089] In one or more embodiments, the amount of Na2O in the composition may be greater than the amount of Li2O. In some cases, the amount of Na2O may be greater than the combined amount of Li2O and K2O. In one or more alternative embodiments, the amount of Li2O in the composition may be greater than the amount of Na2O or the combined amount of Na2O and K2O.

[0090] In one or more embodiments, the glass composition may contain about 0 mol% to about 2 mol% RO (which is the total amount of alkaline earth metal oxides, such as CaO, MgO, BaO, ZnO, and SrO). In some embodiments, the glass composition contains up to about 2 mol% of a non-zero amount of RO. In one or more embodiments, the amount of RO contained in the glass composition is in the range of about 0 mol% to about 1.8 mol%, about 0 mol% to about 1.6 mol%, about 0 mol% to about 1.5 mol%, about 0 mol% to about 1.4 mol%, about 0 mol% to about 1.2 mol%, about 0 mol% to about 1 mol%, about 0 mol% to about 0.8 mol%, about 0 mol% to about 0.5 mol%, and all ranges and subranges therein.

[0091] In one or more embodiments, the glass composition contains less than about 1 mol%, less than about 0.8 mol%, or less than about 0.5 mol% of CaO. In one or more embodiments, the glass composition is substantially free of CaO.

[0092] In some embodiments, the amount of MgO contained in the glass composition is in the range of about 0 mol% to about 7 mol%, about 0 mol% to about 6 mol%, about 0 mol% to about 5 mol%, about 0 mol% to about 4 mol%, about 0.1 mol% to about 7 mol%, about 0.1 mol% to about 6 mol%, about 0.1 mol% to about 5 mol%, about 0.1 mol% to about 4 mol%, about 1 mol% to about 7 mol%, about 2 mol% to about 6 mol%, or about 3 mol% to about 6 mol%, and all ranges and subranges therein.

[0093] In one or more embodiments, the glass composition comprises ZrO2 in an amount equal to or less than about 0.2 mol%, less than about 0.18 mol%, less than about 0.16 mol%, less than about 0.15 mol%, less than about 0.14 mol%, or less than about 0.12 mol%. In one or more embodiments, the glass composition comprises ZrO2 in an amount ranging from about 0.01 mol% to about 0.2 mol%, from about 0.01 mol% to about 0.18 mol%, from about 0.01 mol% to about 0.16 mol%, from about 0.01 mol% to about 0.15 mol%, from about 0.01 mol% to about 0.14 mol%, from about 0.01 mol% to about 0.12 mol%, or from about 0.01 mol% to about 0.10 mol%, and all ranges and subranges therebetween.

[0094] In one or more embodiments, the glass composition contains SnO2 in an amount equal to or less than about 0.2 mol%, less than about 0.18 mol%, less than about 0.16 mol%, less than about 0.15 mol%, less than about 0.14 mol%, or less than about 0.12 mol%. In one or more embodiments, the glass composition contains SnO2 in an amount ranging from about 0.01 mol% to about 0.2 mol%, from about 0.01 mol% to about 0.18 mol%, from about 0.01 mol% to about 0.16 mol%, from about 0.01 mol% to about 0.15 mol%, from about 0.01 mol% to about 0.14 mol%, from about 0.01 mol% to about 0.12 mol%, or from about 0.01 mol% to about 0.10 mol%, and all ranges and subranges therebetween.

[0095] In one or more embodiments, the glass composition may contain oxides that impart color or tint to the glass article. In some embodiments, the glass composition contains oxides that prevent discoloration of the glass article when exposed to ultraviolet radiation. Examples of such oxides include, but are not limited to, oxides of the following: Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ce, W, and Mo.

[0096] In one or more embodiments, the glass composition comprises Fe, expressed as Fe₂O₃, wherein Fe is present in an amount of up to (and including) about 1 mol%. In some embodiments, the glass composition is substantially free of Fe. In one or more embodiments, the amount of Fe₂O₃ contained in the glass composition is equal to or less than about 0.2 mol%, less than about 0.18 mol%, less than about 0.16 mol%, less than about 0.15 mol%, less than about 0.14 mol%, or less than about 0.12 mol%. In one or more embodiments, the glass composition comprises Fe2O3 in the range of about 0.01 mol% to about 0.2 mol%, about 0.01 mol% to about 0.18 mol%, about 0.01 mol% to about 0.16 mol%, about 0.01 mol% to about 0.15 mol%, about 0.01 mol% to about 0.14 mol%, about 0.01 mol% to about 0.12 mol%, or about 0.01 mol% to about 0.10 mol%, and all ranges and subranges therein.

[0097] When the glass composition contains TiO2, the amount of TiO2 present may be about 5 mol% or less, about 2.5 mol% or less, about 2 mol% or less, or about 1 mol% or less. In one or more embodiments, the glass composition may be substantially free of TiO2.

[0098] An exemplary glass composition includes SiO2 in a content of about 65 mol% to about 75 mol%, Al2O3 in a content of about 8 mol% to about 14 mol%, Na2O in a content of about 12 mol% to about 17 mol%, K2O in a content of about 0 mol% to about 0.2 mol%, and MgO in a content of about 1.5 mol% to about 6 mol%. Optionally, SnO2 may be included in amounts otherwise disclosed herein. It should be understood that although the preceding glass composition paragraphs represent approximate ranges, in other embodiments, the glass sheet 12 may be made of any glass composition falling within any of the precise numerical ranges described above.

[0099] Aspect (1) of this disclosure relates to a curved glass article comprising: a glass plate including a first main surface and a second main surface opposite to the first main surface, the glass plate being curved into a curved configuration, the curved configuration defining a curved region disposed between a first flat section and a second flat section, the curved region including a radius of curvature of at least 250 mm; a carrier adhered to the second main surface of the glass plate and configured to hold the glass plate in the curved configuration, the carrier including a first longitudinal strip, a second longitudinal strip, a first lateral strip, and a second lateral strip, wherein the first longitudinal strip is spaced apart from the second longitudinal strip, wherein the first longitudinal strip and the second longitudinal strip define the radius of curvature of the curved region, wherein the first lateral strip is spaced apart from the second lateral strip, and wherein the first lateral strip and the second lateral strip extend between the first longitudinal strip and the second longitudinal strip, wherein the glass plate deviates from the plane by 0.3 mm or less in the first flat section and the second flat section; wherein the first longitudinal strip and the second longitudinal strip each have a width W of 2 mm or less. long Furthermore, the first lateral strip and the second lateral strip each have a width W of 20 mm or less. lat The width W of the first lateral strip lat At least a portion of it is located in the curved region and the first flat section, and wherein the width W of the second lateral strip is... lat At least a portion of it is located in the curved region and the second flat section.

[0100] Aspect (2) of this disclosure relates to the curved glass article of aspect (1), wherein the width W of the first lateral strip and the second lateral strip is... lat The diameters not exceeding 10mm are located in the first flat section or the second flat section respectively.

[0101] Aspect (3) of this disclosure relates to a curved glass article of aspect (1) or aspect (2), wherein the carrier further includes a third longitudinal strip disposed between the first longitudinal strip and the second longitudinal strip.

[0102] Aspect (4) of this disclosure relates to a curved glass article of aspect (3), wherein the carrier further includes a third lateral strip disposed between the first lateral strip and the second lateral strip, and wherein the third lateral strip intersects with the third longitudinal strip.

[0103] Aspect (5) of this disclosure relates to a curved glass article of any one of aspects (1) to (4), wherein the carrier extends 5 mm or less into the first flat section and the second flat section.

[0104] Aspect (6) of this disclosure relates to a curved glass article of any one of aspects (1) to (5), wherein the carrier includes a height perpendicular to the glass plate, and wherein the height is 20 mm or less.

[0105] Aspect (7) of this disclosure relates to a curved glass article of any one of aspects (1) to (6), wherein the first longitudinal strip and the second longitudinal strip each include a chamfered edge, and wherein the chamfered edge includes an angle α from 20° to 60°.

[0106] Aspect (8) of this disclosure relates to a curved glass article of any one of aspects (1) to (7), wherein the first lateral strip and the second lateral strip are respectively connected to the first longitudinal strip and the second longitudinal strip to define a closed shape.

[0107] Aspect (9) of this disclosure relates to a curved glass article of any one of aspects (1) to (8), wherein the first lateral strip and the second lateral strip do not extend over the entire distance between the first longitudinal strip and the second longitudinal strip to define a substantially closed shape.

[0108] Aspect (10) of this disclosure relates to a curved glass article of any one of aspects (1) to (9), wherein the glass sheet comprises a V-shaped or C-shaped cross section in the curved construction.

[0109] Aspect (11) of this disclosure relates to a curved glass article of any one of aspects (1) to (10), wherein the width W of the first longitudinal strip and the second longitudinal strip is... long It is approximately 1 mm.

[0110] Aspect (12) of this disclosure relates to a curved glass article of any one of aspects (1) to (11), wherein the glass plate comprises at least one of soda-lime glass, aluminosilicate glass, borosilicate glass, borosilicate glass, alkali metal aluminosilicate glass, alkali metal borosilicate glass, and alkali metal borosilicate glass.

[0111] Aspect (13) of this disclosure relates to a curved glass article of any one of aspects (1) to (12), wherein the thickness of the glass plate is from 0.4 mm to 2.0 mm.

[0112] Aspect (14) of this disclosure relates to a curved glass article of any one of aspects (1) to (13), wherein at least one of the first main surface or the second main surface includes a surface treatment.

[0113] Aspect (15) of this disclosure relates to curved glass articles of aspect (14), wherein the surface treatment is at least one of pigment design, anti-glare coating, anti-reflective coating, and easy-clean coating.

[0114] Aspect (16) of this disclosure relates to a curved glass article of any one of aspects (1) to (15), and further includes at least one display mounted on a second main surface of the glass plate.

[0115] Aspect (17) of this disclosure relates to a curved glass article of aspect (16), wherein the at least one display comprises at least one of a light-emitting diode display, an organic light-emitting diode display, a liquid crystal display, or a plasma display.

[0116] Aspect (18) of this disclosure relates to a curved glass article comprising: a glass plate including a first main surface and a second main surface opposite to the first main surface, the glass plate being bent into a curved configuration defining a curved region disposed between a first flat section and a second flat section, the curved region including a radius of curvature of at least 250 mm; a carrier adhered to the second main surface of the glass plate and configured to hold the glass plate in the curved configuration, the carrier including a first longitudinal strip, a second longitudinal strip, a first lateral strip, a second lateral strip, a third lateral strip, and a fourth lateral strip, wherein the first longitudinal strip... A first longitudinal strip is spaced apart from a second longitudinal strip, wherein the first and second longitudinal strips define the radius of curvature of the curved region, and wherein a first lateral strip, a second lateral strip, a third lateral strip, and a fourth lateral strip extend between the first and second longitudinal strips; wherein the glass plate deviates from the plane by 0.3 mm or less in the first and second flat sections; wherein the width of each of the longitudinal strips and lateral strips is 2 mm or less; wherein the first lateral strip is disposed in the first flat section, the second and third lateral strips are disposed in the curved region, and the fourth lateral strip is disposed in the second flat section.

[0117] Aspect (19) of this disclosure relates to a curved glass article of aspect (18), wherein the carrier extends 10 mm or less into the first flat section and the second flat section.

[0118] Aspect (20) of this disclosure relates to curved glass articles of aspect (18) or aspect (19), wherein the carrier includes a height perpendicular to the glass plate extension, wherein the height is 20 mm or less.

[0119] Aspect (21) of this disclosure relates to a curved glass article of any one of aspects (18) to (20), wherein the first longitudinal strip and the second longitudinal strip each include a chamfered edge, and wherein the chamfered edge includes an angle θ from 20° to 60°.

[0120] Aspect (22) of this disclosure relates to a curved glass article of any one of aspects (18) to (21), wherein at least two of the first lateral strip, the second lateral strip, the third lateral strip and the fourth lateral strip are connected to the first longitudinal strip and the second longitudinal strip to define a closed shape.

[0121] Aspect (23) of this disclosure relates to a curved glass article of any one of aspects (18) to (21), wherein the first lateral strip, the second lateral strip, the third lateral strip, or the fourth lateral strip does not extend the entire distance between the first longitudinal strip and the second longitudinal strip to define a substantially closed shape.

[0122] Aspect (24) of this disclosure relates to a curved glass article of any one of aspects (18) to (23), wherein the glass sheet comprises a V-shaped or C-shaped cross section in the curved construction.

[0123] Aspect (25) of this disclosure relates to a curved glass article of any one of aspects (18) to (24), wherein the width of each of the lateral strips and the longitudinal strips is about 1 mm.

[0124] Aspect (26) of this disclosure relates to a curved glass article of any one of aspects (18) to (25), wherein the glass plate comprises at least one of soda-lime glass, aluminosilicate glass, borosilicate glass, borosilicate glass, alkali metal aluminosilicate glass, alkali metal borosilicate glass, and alkali metal borosilicate glass.

[0125] Aspect (27) of this disclosure relates to a curved glass article of any one of aspects (18) to (26), wherein the glass plate has a thickness of 0.4 mm to 2.0 mm between a first main surface and a second main surface.

[0126] Aspect (28) of this disclosure relates to a curved glass article of any one of aspects (18) to (27), wherein at least one of the first main surface or the second main surface includes a surface treatment.

[0127] Aspect (29) of this disclosure relates to curved glass articles of aspect (28), wherein the surface treatment is at least one of pigment design, anti-glare treatment, anti-reflective coating, and easy-clean coating.

[0128] Aspect (30) of this disclosure relates to a curved glass article of any one of aspects (18) to (29), and further includes at least one display mounted on a second main surface of the glass plate.

[0129] Aspect (31) of this disclosure relates to a curved glass article of aspect (30), wherein the at least one display comprises at least one of a light-emitting diode display, an organic light-emitting diode display, a liquid crystal display, or a plasma display.

[0130] Aspect (32) of this disclosure relates to a method of preparing a curved glass article, comprising: bending a glass plate to conform to a carrier having a curvature radius of at least 250 mm, wherein the bending is performed at a temperature of 200°C or lower, wherein the glass plate includes a first main surface and a second main surface opposite to the first main surface, wherein the carrier includes a first longitudinal strip, a second longitudinal strip, and at least two lateral strips, wherein the at least two lateral strips extend between the first and second longitudinal strips, and wherein by bending, the glass plate includes a curved region disposed between a first flat section and a second flat section; and adhering the glass plate to the carrier to provide a curved glass article having a shape deviation of ±0.3 mm in the flat section; wherein the width W of each of the first and second longitudinal strips is... long The diameter is 2 mm or less; wherein the first lateral strip of the at least two lateral strips is at least partially located in the first flat section, and the second lateral strip of the at least two lateral strips is at least partially located in the second flat section.

[0131] Aspect (33) of this disclosure relates to the method of aspect (32), wherein each of the first lateral strip and the second lateral strip includes a width W of 20 mm or less. lat .

[0132] Aspect (34) of this disclosure relates to the method of aspect (33), wherein the width W of the first lateral strip and the second lateral strip lat At least 10 mm or less are located in the first flat section and the second flat section, respectively.

[0133] Aspect (35) of this disclosure relates to a method of any one of aspects (32) to (34), wherein the carrier further includes a third longitudinal strip disposed between the first longitudinal strip and the second longitudinal strip.

[0134] Aspect (36) of this disclosure relates to the method of aspect (35), wherein at least two lateral strips include a third lateral strip disposed between the first lateral strip and the second lateral strip, and wherein the third lateral strip intersects with the third lateral strip.

[0135] Aspect (37) of this disclosure relates to the method of aspect (32), wherein the at least two lateral strips include a third lateral strip and a fourth lateral strip, wherein the first lateral strip is disposed in the first flat section, the second and third lateral strips are disposed in the curved region, and the fourth lateral strip is disposed in the second flat section.

[0136] Aspect (38) of this disclosure relates to the method of any one of aspects (32) to (37), wherein the carrier extends 10 mm or less into the first flat section and the second flat section.

[0137] Aspect (39) of this disclosure relates to a method of any one of aspects (32) to (38), wherein the carrier includes a height perpendicular to the glass plate, the height being 20 mm or less.

[0138] Aspect (40) of this disclosure relates to a method of any one of aspects (32) to (39), wherein both the first longitudinal strip and the second longitudinal strip include chamfered edges, and wherein the chamfered edges include angles from 20° to 60°.

[0139] Aspect (41) of this disclosure relates to a method of any one of aspects (32) to (40), wherein at least two of the at least two lateral strips are connected to a first longitudinal strip and to a second longitudinal strip to define a closed shape.

[0140] Aspect (42) of this disclosure relates to a method of any one of aspects (32) to (40), wherein neither of the at least two lateral strips extends the entire distance between the first longitudinal strip and the second longitudinal strip to define a substantially closed shape.

[0141] Aspect (43) of this disclosure relates to a method of any one of aspects (32) to (42), wherein the glass plate includes a V-shaped or C-shaped section in a curved configuration.

[0142] Unless otherwise expressly stated, no method described herein is intended to be construed as requiring its steps to be performed in a particular order. Therefore, unless a method claim actually describes the order in which its steps are to be followed, or unless the claims or description specifically state that the steps should be limited to a particular order, it is not in any way implied that a particular order can be inferred. Furthermore, as used herein, the article “a” is intended to include one or more parts or elements, and is not intended to be construed as meaning only one.

[0143] It will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit or scope of the disclosed embodiments. Since modifications, combinations, sub-combinations, and variations of the disclosed embodiments in conjunction with the spirit and substance of the embodiments are possible to those skilled in the art, the disclosed embodiments should be construed as including all contents within the scope of the appended claims and their equivalents.

Claims

1. A curved glass article, comprising: A glass plate, the glass plate including a first main surface and a second main surface opposite to the first main surface, the glass plate being bent into a curved configuration, the curved configuration defining a curved region disposed between a first flat section and a second flat section, the curved region including a radius of curvature of at least 250 mm; A carrier, adhered to the second main surface of the glass plate and configured to hold the glass plate in the curved configuration, the carrier comprising a first longitudinal strip, a second longitudinal strip, a first lateral strip, and a second lateral strip provided in a closed shape, wherein the first longitudinal strip is spaced apart from the second longitudinal strip, wherein the first longitudinal strip and the second longitudinal strip define the radius of curvature of the curved region, wherein the first lateral strip is spaced apart from the second lateral strip, and wherein the first lateral strip and the second lateral strip extend between the first longitudinal strip and the second longitudinal strip. The glass plate deviates from the plane by 0.3 mm or less in both the first flat section and the second flat section; The first longitudinal strip and the second longitudinal strip each have a width W of 2 mm or less. long ;and The first side strip and the second side strip each have a width of 20 mm or less. lat The width W of the first lateral strip lat At least a portion of it is located in the curved region and the first flat section, and the width W of the second lateral strip is... lat At least a portion of it is located in the curved region and the second flat section. The glass plate is bent to conform to the carrier, and the carrier has a curvature with a radius of curvature of at least 250 mm.

2. The curved glass article of claim 1, wherein the width W of the first lateral strip and the second lateral strip lat The diameters, not exceeding 10 mm, are located in either the first flat section or the second flat section.

3. The curved glass article as claimed in claim 1 or claim 2, wherein the carrier further comprises a third longitudinal strip disposed between the first longitudinal strip and the second longitudinal strip.

4. The curved glass article of claim 3, wherein the carrier further comprises a third lateral strip disposed between the first lateral strip and the second lateral strip, and wherein the third lateral strip intersects with the third longitudinal strip.

5. The curved glass article as claimed in claim 1 or claim 2, wherein the carrier extends 5 mm or less into the first flat section and the second flat section.

6. The curved glass article of claim 1 or claim 2, wherein the carrier extends at a height perpendicular to the glass plate, and wherein the height is 20 mm or less.

7. The curved glass article of claim 1 or claim 2, wherein the first longitudinal strip and the second longitudinal strip each include a chamfered edge, and wherein the chamfered edge includes an angle from 20° to 60°.

8. The curved glass article as claimed in claim 1 or claim 2, wherein the glass sheet comprises a V-shaped or C-shaped cross section in the curved structure.

9. The curved glass article as claimed in claim 1 or claim 2, wherein the width W of the first longitudinal strip and the second longitudinal strip is... long It is 1 mm.

10. The curved glass article of claim 1 or claim 2, wherein the glass plate comprises at least one of soda-lime glass, aluminosilicate glass, borosilicate glass and borosilicate glass.

11. The curved glass article of claim 10, wherein the aluminosilicate glass comprises alkali metal-containing aluminosilicate glass, the borosilicate glass comprises alkali metal-containing borosilicate glass, and the borosilicate glass comprises alkali metal-containing borosilicate glass.

12. The curved glass article as claimed in claim 1 or claim 2, wherein the thickness of the glass sheet is from 0.4 mm to 2.0 mm.

13. The curved glass article of claim 1 or claim 2, wherein at least one of the first main surface or the second main surface includes a surface treatment.

14. The curved glass article of claim 13, wherein the surface treatment is at least one of pigment design, anti-glare coating, anti-reflective coating and easy-clean coating.

15. The curved glass article of claim 1 or claim 2, further comprising at least one display mounted to the second main surface of the glass plate.

16. The curved glass article of claim 15, wherein the at least one display comprises at least one of a light-emitting diode display, an organic light-emitting diode display, a liquid crystal display, or a plasma display.

17. A curved glass article, comprising: A glass plate, the glass plate including a first main surface and a second main surface opposite to the first main surface, the glass plate being bent into a curved configuration, the curved configuration defining a curved region disposed between a first flat section and a second flat section, the curved region including a radius of curvature of at least 250 mm; A carrier, which is adhered to the second main surface of the glass plate and configured to hold the glass plate in the curved configuration, the carrier includes a first longitudinal strip, a second longitudinal strip, a first lateral strip, a second lateral strip, a third lateral strip, and a fourth lateral strip provided in a closed shape, wherein the first longitudinal strip is spaced apart from the second longitudinal strip, wherein the first longitudinal strip and the second longitudinal strip define the radius of curvature of the curved region, and wherein the first lateral strip, the second lateral strip, the third lateral strip, and the fourth lateral strip extend between the first longitudinal strip and the second longitudinal strip; The glass plate deviates from the plane by 0.3 mm or less in the first flat section and the second flat section; The width of each of the longitudinal strips and the lateral strips is 2 mm or less; The first lateral strip is disposed in the first flat section, the second and third lateral strips are disposed in the curved region, and the fourth lateral strip is disposed in the second flat section. The glass plate is bent to conform to the carrier, and the carrier has a curvature with a radius of curvature of at least 250 mm.

18. The curved glass article of claim 17, wherein the carrier extends 10 mm or less into the first flat section and the second flat section.

19. The curved glass article of claim 17 or claim 18, wherein the carrier extends at a height perpendicular to the glass plate, wherein the height is 20 mm or less.

20. The curved glass article of claim 17 or claim 18, wherein the first longitudinal strip and the second longitudinal strip each include a chamfered edge, and wherein the chamfered edge includes an angle θ from 20° to 60°.

21. The curved glass article of claim 17 or claim 18, wherein at least two of the first lateral strip, the second lateral strip, the third lateral strip, and the fourth lateral strip are connected to the first longitudinal strip and the second longitudinal strip to define a closed shape.

22. The curved glass article of claim 17 or claim 18, wherein the glass sheet comprises a V-shaped or C-shaped cross section in the curved construction.

23. The curved glass article of claim 17 or claim 18, wherein the width of each of the lateral strips and the longitudinal strips is 1 mm.

24. The curved glass article of claim 17 or claim 18, wherein the glass plate comprises at least one of soda-lime glass, aluminosilicate glass, borosilicate glass and borosilicate glass.

25. The curved glass article of claim 24, wherein the aluminosilicate glass comprises alkali metal-containing aluminosilicate glass, the borosilicate glass comprises alkali metal-containing borosilicate glass, and the borosilicate glass comprises alkali metal-containing borosilicate glass.

26. The curved glass article of claim 17 or claim 18, wherein the glass plate has a thickness of 0.4 mm to 2.0 mm between the first main surface and the second main surface.

27. The curved glass article of claim 17 or claim 18, wherein at least one of the first main surface or the second main surface includes a surface treatment.

28. The curved glass article of claim 27, wherein the surface treatment is at least one of pigment design, anti-glare treatment, anti-reflective coating, and easy-clean coating.

29. The curved glass article of claim 17 or claim 18, further comprising at least one display mounted to the second main surface of the glass plate.

30. The curved glass article of claim 29, wherein the at least one display comprises at least one of a light-emitting diode display, an organic light-emitting diode display, a liquid crystal display, or a plasma display.

31. A method for preparing curved glass articles, comprising: A glass plate is bent to conform to a carrier having a curvature of at least 250 mm, wherein the bending is performed at a temperature of 200°C or lower, wherein the glass plate includes a first main surface and a second main surface opposite to the first main surface, wherein the carrier includes a first longitudinal strip, a second longitudinal strip, and at least two lateral strips provided in a closed shape, wherein the at least two lateral strips extend between the first longitudinal strip and the second longitudinal strip, and wherein during the bending process, the glass plate is bent into a curved configuration that defines a curved region disposed between a first flat section and a second flat section; as well as The glass plate is adhered to the carrier to provide a curved glass article with a shape deviation of ±0.3 mm in the flat section; The width W of the first vertical bar and the second vertical bar is respectively long 2 mm or smaller; The first lateral strip of the at least two lateral strips is at least partially located in the first flat section, and the second lateral strip of the at least two lateral strips is at least partially located in the second flat section.

32. The method of claim 31, wherein each of the first lateral strip and the second lateral strip comprises a width W of 20 mm or less. lat .

33. The method of claim 32, wherein the width W of the first lateral strip and the second lateral strip lat 10 mm or less are located in the first flat section and the second flat section, respectively.

34. The method of any one of claims 31 to 33, wherein the carrier further comprises a third longitudinal strip disposed between the first longitudinal strip and the second longitudinal strip.

35. The method of claim 34, wherein the at least two lateral strips include a third lateral strip disposed between the first lateral strip and the second lateral strip, and wherein the third lateral strip intersects with the third longitudinal strip.

36. The method of claim 31, wherein the at least two lateral strips include a third lateral strip and a fourth lateral strip, wherein the first lateral strip is disposed in the first flat section, the second lateral strip and the third lateral strip are disposed in the curved region, and the fourth lateral strip is disposed in the second flat section.

37. The method of any one of claims 31 to 33, wherein the carrier extends 10 mm or less into the first flat section and the second flat section.

38. The method of any one of claims 31 to 33, wherein the carrier extends at a height perpendicular to the glass plate, the height being 20 mm or less.

39. The method of any one of claims 31 to 33, wherein the first longitudinal strip and the second longitudinal strip each include a chamfered edge, and wherein the chamfered edge includes an angle from 20° to 60°.

40. The method of any one of claims 31 to 33, wherein at least two of the at least two lateral strips are connected to the first longitudinal strip and to the second longitudinal strip to define a closed shape.

41. The method of any one of claims 31 to 33, wherein the glass plate comprises a V-shaped or C-shaped cross section in the curved configuration.

Images