The principles and embodiments of the present disclosure relate generally to complexly curved glass articles and methods of cold forming complexly curved glass articles, such as complexly curved glass articles having a first bend region with a set of first bend line segments, and a second bend region with a set of second bend line segments, wherein the first bend line segments and the second bend line segments are independent, are not parallel, and do not intersect.

The principles and embodiments of the present disclosure relate generally to complexly curved glass articles and methods of cold forming complexly curved glass articles, such as complexly curved glass articles having a first bend region with a set of first bend line segments, and a second bend region with a set of second bend line segments, wherein the first bend line segments and the second bend line segments are independent, are not parallel, and do not intersect.

A glass-based article includes a first major surface and a first compressive stress region extending to a first depth of compression from the first major surface. The glass-based article includes a second major surface including a first surface portion and one or more edge surface portions recessed from the first surface portion. The glass-based article includes a second compressive stress region extending to a second depth of compression from the first surface portion. Additionally, methods of manufacturing a glass-based article are disclosed.

A glass-based article includes a first major surface and a first compressive stress region extending to a first depth of compression from the first major surface. The glass-based article includes a second major surface including a first surface portion and one or more edge surface portions recessed from the first surface portion. The glass-based article includes a second compressive stress region extending to a second depth of compression from the first surface portion. Additionally, methods of manufacturing a glass-based article are disclosed.

A process comprises cold-forming a flat glass substrate into a non-planar shape using a die. The cold-formed glass substrate is bonded to a non-planar rigid support structure at a plurality of non-planar points using the die. Bonding methods include injection molding the non-planar rigid support structure, and direct bonding. An article is also provided, comprising a cold-formed glass substrate having opposing major surfaces and a curved shape, the opposing major surfaces comprising a surface stress that differ from one another. The cold-formed glass substrate is attached to a rigid support structure having the curved shape. The cold-formed glass substrate includes an open region not in direct contact with the non-planar rigid support structure, and the open region has a curved shape maintained by the non-planar rigid support structure.

Embodiments of a method for making a contoured glass article and the resulting contoured glass article are disclosed. In one or more embodiments, the method includes cold bending a flat glass sheet having first and second opposing major surfaces, at least one region having a first thickness, and at least one region having a second thickness that is less than the first thickness, to produce cold bent glass sheet having at least one bend region along a portion of the at least one region having the second thickness; and restraining the cold bent glass sheet to produce the contoured glass article. One or more embodiments pertain to the resulting contoured glass article.

Embodiments of a method for making a contoured glass article and the resulting contoured glass article are disclosed. In one or more embodiments, the method includes cold bending a flat glass sheet having first and second opposing major surfaces, at least one region having a first thickness, and at least one region having a second thickness that is less than the first thickness, to produce cold bent glass sheet having at least one bend region along a portion of the at least one region having the second thickness; and restraining the cold bent glass sheet to produce the contoured glass article. One or more embodiments pertain to the resulting contoured glass article.

Disclosed are embodiments of a method of forming a curved glass article. In the method, a mold having a curved surface is provided. A self-adhesive layer is disposed on the curved surface. A glass sheet is bent into conformity with the curved surface at a temperature less than the glass transition temperature of the glass sheet. The glass sheet includes a first major surface and a second major surface in which the second major surface is opposite to the first major surface. The first major surface is adhered to the self-adhesive layer. A frame is bonded to the second major surface of the glass sheet, and the glass sheet is removed from the self-adhesive layer. A system for performing the method and a mold having a self-adhesive layer are also disclosed.

A thin glass substrate, as well as a method and an apparatus are provided. The glass substrate has a glass having first and second main surfaces and elongated elevations on one of the main surfaces. The elevations rise in a normal direction, have a longitudinal extent that is greater than two times a transverse extent, and have a height, on average, that is less than 100 nm, and with a transverse extent of the elevation smaller than 40 mm. The method includes melting a glass, hot forming the glass, and adjusting a viscosity of the glass so that for the viscosity η1 for a first stretch over a first distance of up to 1.5 m downstream of a flow rate control component and y1 indicating a second distance to a location immediately downstream the flow rate control component the equation lg η1(y1)/dPa.Math.s=(lg η01/dPa.Math.s+a1(y1)) applies.

A thin glass substrate, as well as a method and an apparatus are provided. The glass substrate has a glass having first and second main surfaces and elongated elevations on one of the main surfaces. The elevations rise in a normal direction, have a longitudinal extent that is greater than two times a transverse extent, and have a height, on average, that is less than 100 nm, and with a transverse extent of the elevation smaller than 40 mm. The method includes melting a glass, hot forming the glass, and adjusting a viscosity of the glass so that for the viscosity η1 for a first stretch over a first distance of up to 1.5 m downstream of a flow rate control component and y1 indicating a second distance to a location immediately downstream the flow rate control component the equation lg η1(y1)/dPa.Math.s=(lg η01/dPa.Math.s+a1(y1)) applies.