TW201925120A - Ceiling lighting system using glass light-guide plate - Google Patents

Abstract

An illuminating vehicle assembly including an external first glass sheet; an internal second glass sheet; an interlayer disposed between the first glass sheet and the second glass sheet; and a third glass sheet. The third glass sheet has an inner surface, an outer surface opposite the inner surface, and an edge between the inner and outer surfaces, where the outer surface faces an interior surface of the second glass sheet that is opposite a side of the second glass sheet on which the interlayer is disposed. The assembly also includes a light source optically coupled to the edge of the third glass sheet, which is a light guide plate for light emitted by the light source. In one or more embodiments, the third glass sheet is moveable relative to the rest of the assembly. In one or more embodiments, the assembly is used for automotive glazing.

Description

Roof lighting system using glass light guide

This application claims the benefit of priority to US Provisional Application Serial No. 62/583,232, filed on Nov. 8, 2017, the content of which is hereby incorporated by reference in its entirety This article.

The present disclosure relates to glass light guides and illumination systems using glass light guides, and more particularly to illumination systems in vehicles or automotive interior applications where glass light guides are used to disperse light.

In recent history, lighting systems in automotive applications (eg, interiors of automobiles) have largely not developed. However, in order to meet the changing needs and needs of drivers and riders, the demand for innovative lighting systems that provide functionality and flexibility is increasing. With the advent of autonomous or driverless cars, this situation is becoming more apparent and may change the way drivers or riders use the car's internal environment. In addition, changes in vehicle design have made some lighting solutions worse or impossible. For example, an increase in the number and size of transparent roof or roof systems (eg, skylights) and other transparent vehicle panels may make placement of the lighting elements difficult. When an external light source can be obtained, the interior of the vehicle can be illuminated through the transparent elements. However, when an external light source cannot be obtained (for example, in the usual case at night), it is necessary to generate light in the interior of the vehicle.

Therefore, a flexible lighting system is needed to meet the changing needs of vehicle drivers and riders while complying with changes in the design of the vehicle.

A first aspect of the present disclosure relates to an illumination glazing unit comprising: an outer first glass sheet; an inner second glass sheet; disposed intermediate the first glass sheet and the second glass sheet a third glass sheet comprising an inner surface, an outer surface opposite the inner surface, and an edge between the inner surface and the outer surface, the outer surface facing the inner surface of the second glass sheet, the second glass sheet The inner surface is opposite the side of the second glass sheet on which the intermediate layer is disposed; the light source is optically coupled to the edge, wherein the third glass sheet is a light guide for the light emitted by the light source.

A second aspect of the present disclosure is directed to a vehicle comprising: a body defining an interior and an opening in communication with the interior; and a complex curved laminate disposed in the opening. The laminate includes: a first curved glass substrate including a first major surface, a second major surface opposite the first major surface, and a first thickness, the first thickness being defined between the first major surface and the second major surface a second curved glass substrate comprising a third major surface, a fourth major surface opposite the third major surface, and a second thickness defined as a distance between the third major surface and the fourth major surface And an intermediate layer disposed between the first curved glass substrate and the second curved glass substrate and adjacent to the second major surface and the third major surface. The vehicle further includes: a third glass substrate including a fifth major surface, a sixth major surface opposite the fifth major surface, and an edge between the fifth and sixth major surfaces, the fifth major surface facing the second curved glass a fourth major surface of the substrate; and a light source optically coupled to the edge, wherein the third glass substrate is a light guide for light emitted by the light source.

Additional features and advantages will be set forth in the detailed description which follows, and in the <Desc/Clms Page number> Additional features and advantages are understood from the embodiments described in the accompanying drawings.

The above general description and the following detailed description are to be considered as illustrative and illustrative The accompanying drawings are included to provide a further understanding of the invention The drawings illustrate one or more embodiments, and together with the description

Reference will now be made in detail to the preferred embodiments embodiments

Automotive glazings can be used in a wide variety of applications in accordance with various aspects of the present disclosure. For example, automotive glazings can be used for various functional and/or decorative applications (eg, exterior and interior surfaces of vehicles including, but not limited to, cars, trucks, buses, and boats). FIG. 1 illustrates an exemplary vehicle 100 including a front assembly 110 and a rear assembly 120 and having a front side window 130 and a rear side window 140. The vehicle 100 also includes a front pillar A (commonly referred to as an A-pillar), a rear pillar C (commonly referred to as a C-pillar), and a center pillar B (between the front side window 130 and the rear side window 140, and is commonly referred to as a B-pillar). . The vehicle 100 may further include a windshield 150, a rear window 160, and as shown in FIG. 2, the vehicle 100 may further include a sunroof or a transparent sunroof 190. FIG. 2 illustrates a plan view of the roof 180 with the opening 180 of the sunroof or transparent sunroof 190. As used herein, "sunroof" or "transparent sunroof" are used interchangeably and refer to an element in the roof that is at least partially transparent to visible light. According to various non-limiting embodiments, the automotive glazing disclosed herein may comprise all or a portion of the illustrated vehicle components, including but not limited to front windows (windshields), rear windows, side windows, skylights, transparent sunroofs, and / or external panels (including, for example, A, B, and / or C panels). In additional embodiments, the light guide plate structure disclosed herein can be used on an interior panel on the inside of a vehicle 100 (not shown) (eg, an instrument panel, a console, an inside panel, and/or a seat (eg, a head rest) )). Of course, automotive glazing according to the present disclosure may also be applied to other exterior or interior portions of the vehicle.

Compared to conventional laminates, the disclosed aspects relate to thin or reduced weight glass laminates that exhibit both superior strength and control for automotive and building applications. Claim. Conventional laminates include two soda lime silicate glass substrates having a thickness of from about 1.6 mm to about 3 mm. In order to reduce the thickness of at least one of the glass substrates and to maintain or improve the strength and other properties of the laminate, one of the glass substrates may include a tempered glass substrate.

As shown in FIG. 3, the aspect of the present disclosure relates to a laminate 300 comprising a first curved glass substrate 310, a second curved glass substrate 320, and a first curved glass substrate and a second curved An intermediate layer 330 between the glass substrates. In one or more embodiments, the first curved glass substrate 310 includes a first major surface 312, a second major surface 314 opposite the first major surface, defined as between the first major surface and the second major surface The first thickness 316 of the distance and the first sag depth 318. In one or more embodiments, the second curved glass substrate 320 includes a third major surface 322, a fourth major surface 324 opposite the third major surface, defined between the third major surface and the fourth major surface A second thickness 326 of the distance and a second sag depth 328.

In one or more embodiments, as shown in FIG. 3, the intermediate layer 330 is disposed between the first curved glass substrate and the second curved glass substrate, and the second major surface 314 and the third major surface 322 Adjacent.

In the embodiment illustrated in Figure 3, the first surface 312 forms a raised surface and the fourth surface 324 forms a recessed surface. In the embodiment of the laminate 300A shown in FIG. 3A, the positions of the glass substrates may be interchanged such that the intermediate layer 330 is disposed between the first curved glass substrate 310 and the second curved glass substrate 320, and the first Main surface 312 and fourth major surface 324 are adjacent. In such an embodiment, as shown in FIG. 3A, the second surface 314 forms a convex surface and the third surface 322 forms a concave surface.

In one or more embodiments, the first glass substrate and/or the second glass substrate (or the first glass substrate and/or the second glass substrate used to form the first curved glass substrate and the second curved glass substrate, respectively) ) includes a mechanically strengthened glass substrate (as described herein).

In one or more embodiments, one or both of the first sag depth 318 and the second sag depth 328 are about 2 mm or greater. For example, one or both of the first sag depth 318 and the second sag depth 328 can range from about 2 mm to about 30 mm, from about 4 mm to about 30 mm, from about 5 mm to about 30 mm, from about 6 mm to about 30 mm. From about 8 mm to about 30 mm, from about 10 mm to about 30 mm, from about 12 mm to about 30 mm, from about 14 mm to about 30 mm, from about 15 mm to about 30 mm, from about 2 mm to about 28 mm, from about 2 mm to about 26 mm, from about 2 mm to about 25 mm, about From 2 mm to about 24 mm, from about 2 mm to about 22 mm, from about 2 mm to about 20 mm, from about 2 mm to about 18 mm, from about 2 mm to about 16 mm, from about 2 mm to about 15 mm, from about 2 mm to about 14 mm, from about 2 mm to about 12 mm, from about 2 mm to From about 10 mm, from about 2 mm to about 8 mm, from about 6 mm to about 20 mm, from about 8 mm to about 18 mm, from about 10 mm to about 15 mm, from about 12 mm to about 22 mm, from about 15 mm to about 25 mm, or from about 18 mm to about 22 mm.

In one or more embodiments, the first sag depth 318 and the second sag depth 328 are substantially equal to each other. In one or more embodiments, the first sag depth is within 10% of the second sag depth. For example, the first sag depth is within 9%, within 8%, within 7%, within 6%, or within 5% of the second sag depth. To illustrate, the second sag depth is about 15 mm, and the first sag depth ranges from about 14.5 mm to about 16.5 mm (or within 10% of the second sag depth).

In one or more embodiments, the first curved glass substrate and the second curved glass substrate comprise the first one measured by an optical three-dimensional scanner (eg, ATOS Triple Scan supplied by GOM GmbH of Braunschweig, Germany) A shape deviation of ±5 mm or less between the glass substrate and the second glass substrate. In one or more embodiments, a shape deviation is measured between the second surface 314 and the third surface 322 or between the first surface 312 and the fourth surface 324. In one or more embodiments, the shape deviation between the first glass substrate and the second glass substrate is about ±4 mm or less, about ±3 mm or less, about ±2 mm or less, about ±1 mm. Or smaller, about ±0.8 mm or less, about ±0.6 mm or less, about ±0.5 mm or less, about ±0.4 mm or less, about ±0.3 mm or less, about ±0.2 mm or more Small, or about ± 0.1 mm or less. Shape deviation as used herein refers to the largest shape deviation measured on a respective surface.

In one or more embodiments, one or both of the first major surface 312 and the fourth major surface 324 exhibit minimal optical distortion. For example, one or both of the first major surface 312 and the fourth major surface 324 exhibit less than about 400 milli-diopters, less than about 300 millimeters, as measured by an optical distortion detector using a transmissive optical device according to ASTM 1561. Diopter, or less than about 250 milli-diopter. A suitable optical distortion detector is supplied by ISRA VISIION AG of Darmstadt, Germany under the trade name SCREENSCAN-Faultfinder. In one or more embodiments, one or both of the first major surface 312 and the fourth major surface 324 exhibit about 190 milli diopter or less, about 180 milli diopter or less, about 170 milli diopter or more. Small, about 160 milli-diopters or less, about 150 milli-diopters or less, about 140 milli-diopters or less, about 130 milli-diopters or less, about 120 milli-diopters or less, about 110 milli-diopters or less, About 100 milli diopter or less, about 90 milli diopter or less, about 80 milli diopter or less, about 70 milli diopter or less, about 60 milli diopter or less, or about 50 milli diopter or less. Optical distortion, as used herein, refers to the maximum optical distortion measured on a respective surface.

In one or more embodiments, the thickness of the laminate 300 may be 6.85 mm or less, or 5.85 mm or less, wherein the thickness comprises the first curved glass substrate, the second curved glass substrate, and the intermediate layer The sum of the thicknesses. In various embodiments, the thickness of the laminate can range from about 1.8 mm to about 6.85 mm, or from about 1.8 mm to about 5.85 mm, or from about 1.8 mm to about 5.0 mm. Or in the range of 2.1 mm to about 6.85 mm, or in the range of about 2.1 mm to about 5.85 mm, or in the range of about 2.1 mm to about 5.0 mm, or in the range of about 2.4 mm to about 6.85 mm. Or in the range of from about 2.4 mm to about 5.85 mm, or in the range of from about 2.4 mm to about 5.0 mm, or in the range of from about 3.4 mm to about 6.85 mm, or from about 3.4 mm to about 5.85 mm Within the range, or in the range of from about 3.4 mm to about 5.0 mm.

In one or more embodiments, the laminate 300 exhibits a radius of curvature of less than 1000 mm, or less than 750 mm, or less than 500 mm, or less than 300 mm. In one or more embodiments, the laminate 300 exhibits at least one radius of curvature along at least one axis of about 10 m or less, or about 5 m or less. In one or more embodiments, the radius of curvature of the laminate 300 along at least the first axis and along a second axis that is perpendicular to the first axis can be 5 m or less. In one or more embodiments, the radius of curvature of the laminate along at least the first axis and along a second axis that is not perpendicular to the first axis can be 5 m or less.

In one or more embodiments, the second curved glass substrate (or used to form the second curved glass substrate) compared to the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) The second glass substrate) is relatively thin. In other words, the thickness of the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) is greater than the thickness of the second curved glass substrate (or the second glass substrate for forming the second curved glass substrate). In one or more embodiments, the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) is more than twice the thickness of the second. In one or more embodiments, the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) ranges from about 1.5 times to about 10 times the second thickness (eg, about 1.75 times to about 10 times, about 2 times to about 10 times, about 2.25 times to about 10 times, about 2.5 times to about 10 times, about 2.75 times to about 10 times, about 3 times to about 10 times, about 3.25 times Up to about 10 times, about 3.5 times to about 10 times, about 3.75 times to about 10 times, about 4 times to about 10 times, about 1.5 times to about 9 times, about 1.5 times to about 8 times, about 1.5 times to about 7.5 times, about 1.5 times to about 7 times, about 1.5 times to about 6.5 times, about 1.5 times to about 6 times, about 1.5 times to about 5.5 times, about 1.5 times to about 5 times, about 1.5 times to about 4.5 times From about 1.5 times to about 4 times, from about 1.5 times to about 3.5 times, from about 2 times to about 7 times, from about 2.5 times to about 6 times, from about 3 times to about 6 times).

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) The glass substrate) may have the same thickness. In one or more embodiments, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) is more than the second curved glass substrate (or the second used to form the second glass substrate) The glass substrate) is harder or has greater rigidity, while in a very specific embodiment, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or The thickness of the second glass substrate for forming the second curved glass substrate is in the range of 0.2 mm to 1.6 mm.

In one or more embodiments, the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) and the second thickness (or the second glass substrate used to form the second curved glass substrate) Either or both of the thicknesses are less than 1.6 mm (eg, 1.55 mm or less, 1.5 mm or less, 1.45 mm or less, 1.4 mm or less, 1.35 mm or less, 1.3 mm or more) Small, 1.25mm or smaller, 1.2mm or smaller, 1.15mm or smaller, 1.1mm or smaller, 1.05mm or smaller, 1mm or smaller, 0.95mm or smaller, 0.9mm or smaller, 0.85 Mm or less, 0.8 mm or less, 0.75 mm or less, 0.7 mm or less, 0.65 mm or less, 0.6 mm or less, 0.55 mm or less, 0.5 mm or less, 0.45 mm or Smaller, 0.4 mm or less, 0.35 mm or less, 0.3 mm or less, 0.25 mm or less, 0.2 mm or less, 0.15 mm or less, or about 0.1 mm or less. The lower limit of the thickness may be 0.1 mm, 0.2 mm, or 0.3 mm. In some embodiments, the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) and the second thickness (or the thickness of the second glass substrate used to form the second curved glass substrate) Either or both ranges from about 0.1 mm to less than about 1.6 mm, from about 0.1 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, from about 0.1 mm to about 1.2 mm. From about 0.1 mm to about 1.1 mm, from about 0.1 mm to about 1 mm, from about 0.1 mm to about 0.9 mm, from about 0.1 mm to about 0.8 mm, from about 0.1 mm to about 0.7 mm, from about 0.1 mm, from about 0.2 mm to less than about 1.6 mm, from about 0.3 mm to less than about 1.6 mm, from about 0.4 mm to less than about 1.6 mm, from about 0.5 mm to less than about 1.6 mm, from about 0.6 mm to less than about 1.6 mm, from about 0.7 mm to less than about 1.6 mm, about 0.8 Mm to less than about 1.6 mm, from about 0.9 mm to less about 1.6 mm, or from about 1 mm to about 1.6 mm.

In some embodiments, when the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) and the second thickness (or the thickness of the second glass substrate used to form the second curved glass substrate) One of the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) and the second thickness (or the thickness of the second glass substrate used to form the second curvature) when one of them is less than about 1.6 mm The other of them is about 1.6 mm or more. In such an embodiment, the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) and the second thickness (or the thickness of the second glass substrate used to form the second curved glass substrate) Different from each other. For example, when the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) and the second thickness (or the thickness of the second glass substrate used to form the second curved glass substrate) a first thickness (or a thickness of the first glass substrate used to form the first curved glass substrate) and a second thickness (or a thickness of the second glass substrate used to form the second curved glass substrate) when less than about 1.6 mm The other of them is about 1.7 mm or more, about 1.75 mm or more, about 1.8 mm or more, about 1.7 mm or more, about 1.7 mm or more, about 1.7 mm or more, About 1.85 mm or more, about 1.9 mm or more, about 1.95 mm or more, about 2 mm or more, about 2.1 mm or more, about 2.2 mm or more, about 2.3 mm or more, about 2.4. Mm or larger, 2.5 mm or more, 2.6 mm or more, 2.7 mm or more, 2.8 mm or more, 2.9 mm or more, 3 mm or more, 3.2 mm or more, 3.4 mm or more Large, 3.5 mm or larger, 3.6 mm or larger, 3.8 mm or larger, 4 mm or larger, 4.2 mm or larger, 4.4 mm or larger, 4.6 mm or larger, 4.8 mm or larger, 5 mm Or larger, 5.2mm or more Large, 5.4 mm or larger, 5.6 mm or larger, 5.8 mm or larger, or 6 mm or larger. In some embodiments, the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) or the second thickness (or the thickness of the second glass substrate used to form the second curved glass substrate) The range is from about 1.6 mm to about 6 mm, from about 1.7 mm to about 6 mm, from about 1.8 mm to about 6 mm, from about 1.9 mm to about 6 mm, from about 2 mm to about 6 mm, from about 2.1 mm to about 6 mm, from about 2.2 mm to about 6 mm. From about 2.3 mm to about 6 mm, from about 2.4 mm to about 6 mm, from about 2.5 mm to about 6 mm, from about 2.6 mm to about 6 mm, from about 2.8 mm to about 6 mm, from about 3 mm to about 6 mm, from about 3.2 mm to about 6 mm, about 3.4 mm to about 6 mm, from about 3.6 mm to about 6 mm, from about 3.8 mm to about 6 mm, from about 4 mm to about 6 mm, from about 1.6 mm to about 5.8 mm, from about 1.6 mm to about 5.6 mm, from about 1.6 mm to about 5.5 mm, From about 1.6 mm to about 5.4 mm, from about 1.6 mm to about 5.2 mm, from about 1.6 mm to about 5 mm, from about 1.6 mm to about 4.8 mm, from about 1.6 mm to about 4.6 mm, from about 1.6 mm to about 4.4 mm, from about 1.6 mm. Up to about 4.2 mm, from about 1.6 mm to about 4 mm, from about 3.8 mm to about 5.8 mm, from about 1.6 mm to about 3.6 mm, from about 1.6 mm to about 3.4 mm, from about 1.6 mm to about 3.2 mm, or from about 1.6 mm to about 3mm.

In one or more specific examples, the first thickness (or the thickness of the first glass substrate used to form the first curved glass substrate) is from about 1.6 mm to about 3 mm, and the second thickness (or used to form the second The thickness of the second glass substrate of the curved glass substrate ranges from about 0.1 mm to less than about 1.6 mm.

In one or more embodiments, the laminate 300 is substantially free of visual distortion as measured by ASTM C1652/C1652M. In a particular embodiment, according to ASTM C1652/C1652M, the laminate, the first curved glass substrate, and/or the second curved glass substrate are substantially free of wrinkles or distortion that can be visually detected by the naked eye.

In one or more embodiments, measured by a surface stress meter (for example, a surface stress meter ("FSM") commercially available from Orihara Industrial Co., Ltd. (Japan), commercially available under the trade name FSM-6000, The first major surface 312 or the second major surface 314 contains a surface compressive stress of less than 3 MPa. In some embodiments, as described herein, the first curved glass substrate is not strengthened (but may optionally be annealed) and exhibits a surface compressive stress of less than about 3 MPa, or about 2.5 MPa or less, 2 MPa. Or smaller, 1.5 MPa or less, 1 MPa or less, or about 0.5 MPa or less. In some embodiments, such surface compressive stress ranges are present on the first major surface and the second major surface.

In one or more embodiments, the first and second glass substrate systems for forming the first curved glass substrate and the second curved substrate before being co-molded to form the first curved glass substrate and the second curved glass substrate Provided as a substantially planar sheet. In some cases, one or both of the first glass substrate and the second glass substrate used to form the first curved glass substrate and the second curved substrate may have a 3D or 2.5D shape without exhibiting a desired sag The depth, and eventually will be formed during the co-forming process, and will be present in the resulting laminate. Additionally or alternatively, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or used to form the second bend) for aesthetic and/or functional reasons The thickness of one or both of the second glass substrates of the glass substrate may be constant along one or more dimensions or may vary along one or more of its dimensions. For example, a first curved glass substrate (or a first glass substrate for forming a first curved glass substrate) and a second curved glass substrate (or for forming a second curved glass) compared to a more central region of the glass substrate The edge of one or both of the second glass substrates of the substrate may be thicker.

Length, width, and thickness of the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second glass substrate for forming the second curved glass substrate) The size can also vary depending on the application or use of the article. In one or more embodiments, the first curved glass substrate 310 (or the first glass substrate used to form the first curved glass substrate) includes a first length and a first width (the first thickness and the first length and The first curved width is orthogonal, and the second curved glass substrate 320 (or the second glass substrate for forming the second curved glass substrate) includes a second length and a second width orthogonal to the second length (second thickness system) Orthogonal to the second length and the second width). In one or more embodiments, either or both of the first length and the first width are about 0.25 meters (m) or more. For example, the first length and/or the second length may range from about 1 m to about 3 m, from about 1.2 m to about 3 m, from about 1.4 m to about 3 m, from about 1.5 m to about 3 m, from about 1.6 m to about 3 m. From about 1.8 m to about 3 m, from about 2 m to about 3 m, from about 1 m to about 2.8 m, from about 1 m to about 2.8 m, from about 1 m to about 2.8 m, from about 1 m to about 2.8 m, from about 1 m to about 2.6 m, about 1 m to about 2.5 m, from about 1 m to about 2.4 m, from about 1 m to about 2.2 m, from about 1 m to about 2 m, from about 1 m to about 1.8 m, from about 1 m to about 1.6 m, from about 1 m to about 1.5 m, from about 1.2 m To about 1.8 m, or about 1.4 mm to about 1.6 m.

For example, the first width and/or the second width may range from about 0.5 m to about 2 m, from about 0.6 m to about 2 m, from about 0.8 m to about 2 m, from about 1 m to about 2 m, from about 1.2 m to about 2 m. From about 1.4 m to about 2 m, from about 1.5 m to about 2 m, from about 0.5 m to about 1.8 m, from about 0.5 m to about 1.6 m, from about 0.5 m to about 1.5 m, from about 0.5 m to about 1.4 m, from about 0.5 m. To about 1.2 m, from about 0.5 m to about 1 m, from about 0.5 m to about 0.8 m, from about 0.75 m to about 1.5 mm, from about 0.75 m to about 1.25 m, or from about 0.8 m to about 1.2 m.

In one or more embodiments, the second length is within 5% of the first length (eg, about 5% or less, about 4% or less, about 3% or less, or about 2%) Or less). For example, if the first length is 1.5 m, the second length can range from about 1.425 m to about 1.575 m and still be within 5% of the first length. In one or more embodiments, the second width is within 5% of the first width (eg, about 5% or less, about 4% or less, about 3% or less, or about 2%) Or less). For example, if the first width is 1 m, the second width can range from about 1.05 m to about 0.95 m and still be within 5% of the first width.

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) The glass substrate) may have a refractive index of from about 1.2 to about 1.8, from about 1.2 to about 1.75, from about 1.2 to about 1.7, from about 1.2 to about 1.65, from about 1.2 to about 1.6, from about 1.2 to about 1.55, from about 1.25 to about 1.8, From about 1.3 to about 1.8, from about 1.35 to about 1.8, from about 1.4 to about 1.8, from about 1.45 to about 1.8, from about 1.5 to about 1.8, from about 1.55 to about 1.8, or from about 1.45 to about 1.55. The refractive index values as used herein are relative to the wavelength of 550 nm.

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) The glass substrate) may be characterized by the manner in which it is formed. For example, one of the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second glass substrate for forming the second curved glass substrate) Or both may be characterized by floatable forming (i.e., by floating treatment), may be stretched downward, and may be specifically fusible or slot stretchable (i.e., by downwards) A stretching treatment (for example, a fusion stretching treatment or a slit stretching treatment) is formed).

One of the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or the second glass substrate used to form the second curved glass substrate) described herein Or both can be formed by floating processing. The floatable glass substrate can be characterized by a smooth surface and a uniform thickness made of floating molten glass on a bed of molten metal, typically tin. In an exemplary process, the molten glass fed onto the surface of the molten tin bed forms a floating glass ribbon. As the glass ribbon flows along the tin bath, the temperature gradually decreases until the glass ribbon solidifies into a solid glass substrate and can be lifted from the tin onto the roll. Once exiting the bath, the glass substrate can be further cooled and annealed to reduce internal stresses.

One or both of the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second glass substrate for forming the second curved glass substrate) may It is formed by a downward stretching process. The downward stretching process produces a glass substrate having a substantially uniform thickness relative to the original surface. Since the average flexural strength of the glass substrate is usually controlled by the number and size of surface defects, the original surface with the smallest contact has a higher initial strength. In addition, the downwardly stretched glass substrate has a very flat and smooth surface that can be used in the final application without the need for expensive grinding and polishing.

One or both of the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second glass substrate for forming the second curved glass substrate) may It is described as being fusible (that is, it can be formed using a fusion stretching process). The fusion stretching treatment uses a stretching cylinder having a passage for receiving a molten glass raw material. The channel's turns are open at the top along the length of the channel on either side of the channel. When the channel is filled with molten material, the molten glass overflows. Due to gravity, the molten glass flows down the outer surface of the stretching cylinder as two flowing glass membranes. The outer side surfaces of the stretching cylinder extend downwardly and inwardly and are joined at the edges below the stretching cylinder. Two flowing glass films are joined together at this edge to fuse and form a single flowing glass substrate. An advantage of the fusion stretching method is that since the two glass films flowing on the channels are fused together, the outer surface of the resulting glass substrate does not come into contact with any part of the apparatus. Therefore, the surface properties of the fused stretched glass substrate are not affected by such contact.

One of the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or the second glass substrate used to form the second curved glass substrate) described herein Or both can be formed by a slot stretching process. The slot stretching process is different from the melt drawing process. In the slow drawing process, the molten raw material glass is supplied to the stretching cylinder. The bottom of the stretching cylinder has an open slot with a nozzle that extends the length of the slot. The molten glass flows through the slot/nozzle and stretches down as a continuous glass substrate into the annealing zone.

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) One or both of the glass substrates) and the second substrate may be glass (eg, soda lime glass, alkali aluminosilicate glass, alkali borosilicate glass, and/or alkali aluminum boron silicate glass) or Glass ceramics. In some embodiments, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or the second used to form the second curved glass substrate) described herein One or both of the glass substrates may exhibit an amorphous microstructure and may be substantially free of crystals or crystals. In other words, the glass substrate of certain embodiments does not include a glass ceramic material. In some embodiments, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or the second glass substrate used to form the second curved glass substrate) One or both are glass ceramics. Examples of suitable glass ceramics include Li ₂ O-Al ₂ O ₃ -SiO ₂ systems (ie, LAS systems) glass ceramics, MgO-Al ₂ O ₃ -SiO ₂ systems (ie, MAS systems) glass ceramics, and Crystallization of any one or more of mullite, spinel, α-quartz, β-quartz solid solution, lithium feldspar, lithium disilicate, β-spodum, nepheline, and alumina Phase of glass ceramics. Such a substrate comprising a glass ceramic material can be reinforced as described herein.

In one or more embodiments, when the thickness of the glass substrate is 0.7 mm, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or One or both of the second glass substrates forming the second curved glass substrate exhibit a total solar transmittance of about 92% or less over a wavelength range of from about 300 nm to about 2500 nm. For example, one or both of the first and second glass substrates exhibit a total solar transmittance ranging from about 60% to about 92%, from about 62% to about 92%, from about 64% to about 92. %, from about 65% to about 92%, from about 66% to about 92%, from about 68% to about 92%, from about 70% to about 92%, from about 72% to about 92%, from about 60% to about 90%, From about 60% to about 88%, from about 60% to about 86%, from about 60% to about 85%, from about 60% to about 84%, from about 60% to about 82%, from about 60% to about 80%, from about 60% % to about 78%, from about 60% to about 76%, from about 60% to about 75%, from about 60% to about 74%, or from about 60% to about 72%.

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) One or both of the glass substrates are colored. In such an embodiment, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) may comprise a first tint and the second curved glass substrate (or for forming a second curved glass substrate) The second glass substrate) comprises a second hue different from the first hue in the CIE L*a*b* (CIELAB) color space. In one or more embodiments, the first hue is the same as the second hue. In one or more embodiments, the first curved glass substrate comprises a first hue and the second curved glass substrate is not colored. In one or more embodiments, the second curved glass substrate comprises a second hue, and the first curved glass substrate is not colored.

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) One or both of the glass substrates) exhibit a range of average transmittance in the wavelength range of about 380 nm to about 780 nm and a range of from about 75% to about 85%. In some embodiments, the average transmittance in this thickness and in the range of wavelengths can range from about 75% to about 84%, from about 75% to about 83%, from about 75% to about 82%, to about 75% to From about 81%, from about 75% to about 80%, from about 76% to about 85%, from about 77% to about 85%, from about 78% to about 85%, from about 79% to about 85%, or from about 80% to about 85%. In one or more embodiments, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or the second glass used to form the second curved glass) One or both of the substrates) have a thickness of 0.7 mm or 1 mm and a _Tuv-380 or _Tuv-400 system exhibiting a wavelength range of about 300 nm to about 400 nm of 50% or less (for example, 49%) Or lower, 48% or lower, 45% or lower, 40% or lower, 30% or lower, 25% or lower, 23% or lower, 20% or lower, or 15% or Lower).

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) One or both of the glass substrates may be reinforced to include compressive stresses extending from the surface to a depth of compression (DOC). The compressive stress region is balanced by a central portion that exhibits tensile stress. At the DOC, the stress system spans from a positive (compressive) stress to a negative (tensile) stress.

In one or more embodiments, such a strengthened glass substrate can be chemically strengthened, mechanically strengthened, or thermally strengthened. In some embodiments, the strengthened glass substrate can be chemically and mechanically reinforced, mechanically and thermally strengthened, chemically and thermally strengthened, or chemically, mechanically, and thermally strengthened. In one or more embodiments, the second curved glass substrate (or the second glass substrate used to form the second curved glass substrate) is reinforced, and the first curved glass substrate (or used to form the first curved glass) The first glass substrate of the substrate is not reinforced but optionally annealed. In one or more embodiments, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) is reinforced. In a specific embodiment, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second glass substrate for forming the second curved glass substrate) The people are all strengthened. In one or more embodiments, such chemistry and/or is performed on a curved glass substrate (ie, after forming) with one or both of the glass substrates being chemically and/or thermally strengthened. Heat strengthened. In some embodiments, such a glass substrate can optionally be mechanically strengthened prior to forming. In one or more embodiments, where one or both of the glass substrates are mechanically strengthened (and optionally combined with one or more other strengthening methods), such mechanical strengthening is prior to forming occur.

In one or more embodiments, the first curved glass substrate can be mechanically strengthened by utilizing a mismatch in thermal expansion coefficients between portions of the article to create a region of compressive stress and a central region exhibiting tensile stress. One or both of the first glass substrate for forming the first curved glass substrate and the second curved glass substrate (or the second glass substrate for forming the second curved glass). The DOC in such a mechanically reinforced substrate is usually the thickness of the outer portion of the glass substrate having a coefficient of thermal expansion (i.e., the point at which the coefficient of thermal expansion of the glass substrate changes from one value to another).

In some embodiments, the first curved glass substrate (or the first curved glass substrate) may be thermally strengthened by heating the glass substrate to a temperature below the glass transition point followed by rapid thermal quenching or lowering the temperature thereof. One or both of a glass substrate) and a second curved glass substrate (or a second glass substrate for forming a second curved glass substrate). As described above, in one or more embodiments, such heat strengthening is performed on a curved glass substrate (i.e., after forming) in the case where one or both of the glass substrates are thermally strengthened.

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) One or both of the glass substrates can be chemically strengthened by ion exchange. As described above, in one or more embodiments, such chemical strengthening is performed on a curved glass substrate (i.e., after forming) in the case where one or both of the glass substrates are chemically strengthened. In the ion exchange treatment, ions at or near the surface of the glass substrate are replaced or exchanged by larger ions having the same valence or oxidation state. In those embodiments where the glass substrate comprises a composition comprising at least one alkali metal oxide (eg, Li ₂ O, Na ₂ O, K ₂ O, Rb ₂ O, or Cs ₂ O) measured based on the oxide, The ions in the surface layer of the article and the larger ion systems are monovalent alkali metal cations (eg, Li ⁺ , Na ⁺ , K ⁺ , Rb ⁺ , and Cs ⁺ ). Alternatively, the monovalent cation in the surface layer may be replaced with a monovalent cation other than the alkali metal cation (for example, Ag ⁺ or the like). In such an embodiment, the monovalent ions (or cations) exchanged into the glass substrate generate compressive stress on the surface portion and are balanced by the tensile stress of the central portion.

The ion exchange treatment is usually carried out by immersing the glass substrate in a molten salt bath containing a larger ion (or two or more molten salt baths) to exchange with a smaller ion in the glass substrate. It should be noted that an aqueous salt bath can also be utilized. Additionally, the composition of the bath may include more than one type of larger ions (eg, Na ⁺ and K ⁺ ) or a single larger ion. It is understood by those of ordinary skill in the art that parameters for ion exchange treatment include, but are not limited to, bath composition and temperature, immersion time, number of times the glass substrate is immersed in a salt bath (or bath), use of a multi-salt bath, and additional Steps (eg, annealing, cleaning, and the like), and are typically determined by the composition of the glass substrate (including the structure of the article and any crystalline phases present) and the DOC and CS of the desired glass substrate produced by the strengthening. . Exemplary molten bath compositions can include nitrates, sulfates, chlorides of larger alkali metal ions. Typical nitrates include KNO ₃ , NaNO ₃ , LiNO ₃ , NaSO ₄ , and combinations thereof. Depending on the thickness of the glass substrate, the temperature of the bath, the diffusivity of the glass (or monovalent ion), the temperature of the molten salt bath is typically in the range of from about 380 ° C to about 450 ° C, and the immersion time is from about 15 minutes to about 100 hours. Within the scope. However, different temperatures and immersion times than those described above can also be used.

In one or more embodiments, the glass substrate can be immersed in a molten salt bath of 100% NaNO ₃ , 100% KNO ₃ , or a combination of NaNO ₃ and KNO ₃ having a temperature of from about 370 ° C to about 480 ° C. In some embodiments, it includes the glass substrate may be immersed in a molten salt bath mixing from about 5% to about 90% of KNO ₃ and from about 10% to about 95% of NaNO _3. In one or more embodiments, the glass substrate can be immersed in the second bath after being immersed in the first bath. The first and second baths may have different compositions and/or temperatures from each other. The immersion time in the first and second baths can be different. For example, the time of immersion in the first bath may be longer than the time of immersion in the second bath.

In one or more embodiments, the glass substrate can be immersed in a temperature having a temperature of less than about 420 ° C (eg, about 400 ° C or about 380 ° C) including NaNO ₃ and KNO ₃ (eg, 49% / 51%, 50% / The 50%, 51%/49%) molten mixed salt bath is less than about 5 hours, or even about 4 hours or less.

The ion exchange conditions can be tailored to provide "spikes" or to increase the slope of the stress distribution at or near the surface of the resulting glass substrate. Spikes may result in larger surface CS values. Due to the unique nature of the glass composition used in the glass substrates described herein, this peak can be achieved by a single bath or multiple baths, wherein the baths have a single composition or a mixed composition.

In one or more embodiments, when more than one monovalent ion is ion exchanged to a glass substrate, different monovalent ions can be exchanged to different depths within the glass substrate (and different sizes are produced at different depths within the glass substrate) stress). The resulting stress produces a relative depth of ions that can be determined and cause different characteristics of the stress distribution.

The CS system is measured by a method known in the art, for example, by using a surface strain meter (FSM) of a commercially available instrument such as FSM-6000 manufactured by Orihara Industrial Co., Ltd. (Japan). Surface stress measurements depend on an accurate measurement of the stress optical coefficient (SOC) associated with the birefringence of the glass. Next, the SOC is measured by methods known in the art, such as fiber and four point bend methods (the two methods are described in the title "Standard Test Method for Measurement of Glass Stress-Optical". Coefficient" ASTM Standard C770-98 (2013), the contents of which are incorporated herein by reference in its entirety, and the s As used herein, CS can be the "maximum compressive stress" of the highest compressive stress value measured within the compressive stress layer. In some embodiments, the maximum compressive stress is at the surface of the glass substrate. In other embodiments, the maximum compressive stress can occur at a depth below the surface, and the resulting compression profile is expressed as a "buried peak."

Depending on the strengthening method and conditions, the DOC can be measured by FSM or by a Scattered Light Polarizer (SCALP) such as the SCALP-04 Scattering Light Polarizer available from Glasstress Ltd. of Tallinn, Estonia. When the glass substrate is chemically strengthened by ion exchange processing, FSM or SCALP can be used depending on which ion is exchanged into the glass substrate. In the case where stress in a glass substrate is generated by exchanging potassium ions to a glass substrate, the FSM is used to measure DOC. In the case where stress is generated by exchanging sodium ions to a glass substrate, SCALP is used to measure DOC. When the stress in the glass substrate is generated by exchanging potassium ions and sodium ions into the glass, since the exchange depth of sodium is considered to indicate DOC, the exchange depth of potassium ions indicates a change in the magnitude of the compressive stress (but not from compression to pulling) The change in stress is extended, so the DOC is measured by SCALP; the exchange depth of potassium ions in such a glass substrate is measured by FSM. The central tension or CT is the maximum tensile stress and is measured by SCALP.

In one or more embodiments, the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or used to form the second curved glass substrate) may be strengthened The second glass substrate) to present a DOC (as described herein) described as part of the thickness t of the glass substrate. For example, in one or more embodiments, the DOC can be equal to or greater than about 0.03t, equal to or greater than about 0.035t, equal to or greater than about 0.04, equal to or greater than about 0.045t, equal to or greater than about 0.05t, Equal to or greater than about 0.1t, equal to or greater than about 0.11t, equal to or greater than about 0.12t, equal to or greater than about 0.13t, equal to or greater than about 0.14t, equal to or greater than about 0.15t, equal to or greater than about 0.16t, equal to or greater than about 0.16t. Or greater than about 0.17t, equal to or greater than about 0.18t, equal to or greater than about 0.19t, equal to or greater than about 0.2t, equal to or greater than about 0.21t. In some embodiments, the DOC can range from about 0.03 t to about 0.25 t, from about 0.04 t to about 0.25 t, from about 0.05 t to about 0.25 t, from about 0.06 t to about 0.25 t, from about 0.07 t to about 0.25 t. From about 0.08 t to about 0.25 t, from about 0.09 t to about 0.25 t, from about 0.18 t to about 0.25 t, from about 0.11 t to about 0.25 t, from about 0.12 t to about 0.25 t, from about 0.13 t to about 0.25 t, about 0.14t to about 0.25t, about 0.15t to about 0.25t, about 0.08t to about 0.24t, about 0.08t to about 0.23t, about 0.08t to about 0.22t, about 0.08t to about 0.21t, about 0.08t To about 0.2 t, from about 0.08 t to about 0.19 t, from about 0.08 t to about 0.18 t, from about 0.08 t to about 0.17 t, from about 0.08 t to about 0.16 t, or from about 0.08 t to about 0.15 t. In some cases, the DOC can be about 20 [mu]m or less. In one or more embodiments, the DOC can be about 40 μm or greater (eg, 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, about 40 μm to about 260 μm, about 40 μm to about 250 μm, about 40 μm to about 240 μm, about 40 μm to about 230 μm, about 40 μm to about 220 μm, about 40 μm to about 210 μm, about 40 μm to about 200 μm, about 40 μm to about 180 μm, about 40 μm to About 160 μm, about 40 μm to about 150 μm, about 40 μm to about 140 μm, about 40 μm to about 130 μm, about 40 μm to about 120 μm, about 40 μm to about 110 μm, or about 40 μm to about 100 μm.

In one or more embodiments, the CS of the strengthened glass substrate (which may be found at a surface or a depth within the glass substrate) may be about 100 MPa or more, about 150 MPa or more, about 200 MPa or more, About 300 MPa or more, about 400 MPa or more, about 500 MPa or more, about 600 MPa or more, about 700 MPa or more, about 800 MPa or more, about 900 MPa or more, about 930 MPa or more, about 1000 MPa. Or larger, or about 1050 MPa or more.

In one or more embodiments, the maximum tensile stress or center tension (CT) of the strengthened glass substrate may be about 20 MPa or more, about 30 MPa or more, about 40 MPa or more, about 45 MPa or more, About 50 MPa or more, about 60 MPa or more, about 70 MPa or more, about 75 MPa or more, about 80 MPa or more, or about 85 MPa or more. In some embodiments, the maximum tensile stress or center tension (CT) can range from about 40 MPa to about 100 MPa.

In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) The glass substrate) comprises one of sodium calcium silicate glass, alkali aluminum silicate glass, alkali borosilicate glass, alkali aluminum phosphite glass, or alkali aluminum borosilicate glass. In one or more embodiments, the first curved glass substrate (or the first glass substrate for forming the first curved glass substrate) and the second curved glass substrate (or the second for forming the second curved glass substrate) One of the glass substrates) is a soda lime silicate glass, and the first curved glass substrate (or the first glass substrate used to form the first curved glass substrate) and the second curved glass substrate (or used to form The other of the second glass substrates of the second curved glass substrate is alkali aluminosilicate glass, alkali borosilicate glass, alkali aluminum phosphate glass, or alkali aluminum boron silicate glass.

In one or more embodiments, the intermediate layer (eg, 330) used herein can include a single layer or multiple layers. The intermediate layer (or layer thereof) may be formed of a polymer (eg, polyvinyl butyral (PVB), acoustical PBV (APVB), ionic polymer, vinyl acetate (EVA), thermoplastic polyurethane (TPU), polyester ( PE), polyethylene terephthalate (PET), and the like). The thickness of the intermediate layer can range from about 0.5 mm to about 2.5 mm, from about 0.8 mm to about 2.5 mm, from about 1 mm to about 2.5 mm, or from about 1.5 mm to about 2.5 mm. The intermediate layer may also have a non-uniform thickness or wedge shape from one edge of the laminate to the other edge.

In one or more embodiments, the laminate (and/or one or both of the first curved glass substrate and the second curved glass substrate) exhibits a complex curved shape. As used herein, "complex curve" and "complex bending" refer to a non-planar shape having curvature along two orthogonal axes that are different from one another. Examples of complex curved shapes include simple or composite curves, also known as non-expandable shapes, and include, but are not limited to, spherical, non-spherical, and toroidal. Complexly curved laminates according to embodiments may also include sections or portions of such surfaces, or may be comprised of combinations of such curves and surfaces. In one or more embodiments, the laminate can have a composite curve that includes a major radius and a cross curvature. A complex curved laminate according to one or more embodiments may have different radii of curvature in two separate directions. According to one or more embodiments, the features of the complex curved laminate may thus have a "cross curvature" wherein the laminate is curved along an axis parallel to a given dimension (ie, the first axis), It is also curved along an axis that is perpendicular to the same size (i.e., the second axis). The curvature of the laminate may be even more complicated when the significant minimum radius is combined with significant cross curvature and/or flex depth. Some laminates may also include flexes along an axis that is not perpendicular to each other. As a non-limiting example, a complex curved laminate may have a length and width dimension of 0.5 m by 1.0 m with a radius of curvature along the minor axis of 2 to 2.5 m and a radius of curvature along the major axis of 4 to 5m. In one or more embodiments, the complex curved laminate may have a radius of curvature of 5 m or less along at least one axis. In one or more embodiments, the complex curved laminate may have a radius of curvature of at least 5 m or less along at least the first axis and along a second axis that is perpendicular to the first axis. In one or more embodiments, the radius of curvature of the complex curved laminate along at least the first axis and along a second axis that is not perpendicular to the first axis can be 5 m or less.

The present disclosure relates to an illuminated glazing unit in which a glazing or glass sheet is disposed adjacent to the laminate. The glass sheet or the third glass sheet is a light guide plate for providing illumination to a space (eg, the interior of the vehicle). FIG. 4 illustrates an example of such a third glass sheet A material of the third glass sheet 400. The third glass sheet has a first major surface 410 and a second major surface (not shown) opposite the first major surface 410. The first major surface 410 may be referred to herein as the inner surface of the third glass sheet 400. As used herein, "inner surface" is the surface of a space-facing interior (eg, inside a vehicle or inside a building). Conversely, the "outer surface" is the surface that faces the exterior of the vehicle or building. In the view of Fig. 4, the two edges are visible: a first edge 430 and a second edge 440. The first and second faces may have a height H and a width W. The roughness of the first and/or second faces may be less than 0.6 nm, less than 0.5 nm, less than 0.4 nm, less than 0.3 nm, less than 0.2 nm, less than 0.1 nm, or between about 0.1 nm and about 0.6 nm.

The thickness T of the glass sheet can be between the front side and the back side, wherein the thickness forms four edges. The thickness of the glass sheet can be less than the height and width of the front and back sides. In various embodiments, the thickness of the panel can be less than 1.5% of the height of the front and/or back side. Alternatively, the thickness T can be less than about 3 mm, less than about 2 mm, less than about 1 mm, or between about 0.1 mm to about 3 mm. The height, width, and thickness of the light guide can be configured and sized for use in LCD backlighting applications.

As a light guide plate, the third glass sheet is edge-illuminated via one or more light sources. The first edge 130 can be a light injection edge to receive light provided by, for example, a light emitting diode (LED). The light injection edge can scatter light within a transmission angle of full width at half maximum (FWHM) of less than 12.8 degrees. In the case where the light is not polished to the edge, the edge of the light injection can be obtained by grinding the edge. The glass sheet can further include a second edge 140 adjacent the light injection edge and a third edge opposite the second edge and adjacent the light injection edge, wherein the second edge and/or the third edge are less than 12.8 degrees The reflected angle of the FWHM scatters light. The reflective diffusing angle of the second edge 140 and/or the third edge may be less than 6.4 degrees. It should be noted that although the embodiment depicted in FIG. 1 shows a single edge 130 of injected light, because any one or more of the edges of the exemplary embodiment 100 can inject light, the requested target should not be subject to This limit. For example, in some embodiments, the first edge 130 and its opposite edges can be injected with light. Such an exemplary embodiment can be used in a display device having a large and/or curved width W. Additional embodiments may inject light at the second edge 140 and its opposite edges, rather than at the first edge 130 and/or its opposite edges. Exemplary display devices can have a thickness of less than about 10 mm, less than about 9 mm, less than about 8 mm, less than about 7 mm, less than about 6 mm, less than about 5 mm, less than about 4 mm, less than about 3 mm, or less than about 2 mm.

FIG. 5A illustrates a diagram of one or more embodiments in which light source 550 is optically coupled to edge 510 of LGP 500. The light L input from the light source 550 into the LGP 500 may illuminate the inner surface 520 or a light extraction feature (not shown) provided on the inner surface 520 of the LGP 500. The outer surface 530 is arranged to face the laminate or skylight (not shown) described herein, while light may or may not be emitted from the outer surface 530. FIG. 5B illustrates a plan view of the LGP 500 and the light source 550 of FIG. 5A. Although light source 550 is illustrated as having the same length as edge 510, light source 550 can emit light only at discrete points along edge 510, or can emit light over the entire edge. For example, light source 550 can include one or more LEDs, laser light, or other suitable emitters. In some embodiments, light source 550 can comprise light emitters of various types or colors, or emitters that can emit light of more than one color. For example, light source 550 can include RGB LEDs. 6A and 6B illustrate an alternate embodiment in which a plurality of light sources 650, 660 are disposed on opposite edges 610, 615 of LGP 600. Having multiple light sources 650, 660 can enhance the light output of the LGP 600. Although the light sources 650, 660 are only illustrated on the opposite edges 610, 615, according to other embodiments, multiple light sources may be provided on any of the opposing edges, adjacent edges, or a combination of opposing edges and adjacent edges. For example, a light source can be provided on one, two, three, four, or more edges of the LGP.

FIG. 7A illustrates an aspect of one or more embodiments in which the light source provided includes light emitting fibers 750. Light emitting fiber 750 is a lossy fiber, and light is emitted from all or a portion of circumferential surface 755 of the length of light emitting fiber 750. The light emissive fiber 750 can be optically coupled to the edge 710 of the LGP 700 over the entire circumference of the LGP 700, or alternatively can be optically coupled to the edge of the LGP 700 only on a portion or one or more edges of the circumference of the LGP 700. 710. Light is provided to light emitting fibers 750 by one or more light sources 760, which may include LEDs, lasers, or other suitable light sources.

In some embodiments, a reflector can be used on the LGP or in the LGP to internally reflect light within the LGP while enhancing the light output (intensity or uniformity) at the desired output surface of the LGP. In Figure 8A, one or more reflectors 860 can be disposed along the edge 820 of the LGP as shown in the side view of Figure 8A. The edge reflector 860 has a reflective surface 865 to reflect light contained within the LGP 800, the light contained within the LGP 800 is light emitted from the light source 850, and the light source 850 is optically coupled to the other edge 810 of the LGP 800. Figure 8B is a plan view of the embodiment shown in Figure 8A. Alternatively, as shown in Figures 9A-9B, a planar reflector 960 can be used on the outer surface 930 of the LGP 900. In some embodiments, the planar reflector 960 can be partially transparent such that, for example, a person inside the vehicle can see the exterior of the vehicle through the LGP 900 and the planar reflector 960.

In accordance with one or more embodiments, the third glass layer or light guide panel of the illuminating glazing unit is disposed in the assembly independently of the laminate forming the skylight. This allows the LGP to move or "open" independently of the laminate, with its outer side facing the exterior of the vehicle. In some embodiments, this may be advantageous because the LGP may not be needed in certain environments and the LGP may be moved or retracted depending on the driver's or rider's preferences. In some embodiments, the features of the LGP may interfere with the field of view outside the vehicle, such that the rider may want to retract the LGP to remove those obstacles from view. However, at other times, the LGP can be "closed" or placed in place to serve as the top illumination source for the interior of the vehicle. Figures 10A through 10C illustrate examples of such embodiments. In this embodiment, the illuminating glazing unit 1000 is mounted in a frame or bracket 1050. For example, the frame or bracket can be attached to some external structure of the vehicle. Assembly 1000 includes a laminated skylight that includes a first glass sheet 1010, a second glass sheet 1030, and an intermediate layer 1020 between the first glass sheet 1010 and the second glass sheet 1030. The third glass sheet 1040 is disposed below the laminate. A gap 1060 is present between the laminate and the third glass sheet 1040. The gap 1060 is large enough to allow the third glass sheet 1040 to move relative to the second glass sheet 1030 without damaging any of the glass sheets. In some embodiments, the gap 1060 can be filled with a substantially transparent material or coating of the laminate. In FIG. 10A, as shown, the third glass sheet 1040 is in a closed state, meaning that the outer surface 1041 spans all or a major portion of the second glass sheet and the inner surface of the second glass sheet 1030. 1031 adjacent. In FIG. 10B, the third glass sheet 1040 is moved in a direction M substantially parallel to the outer surface 1041 of the laminate and the third glass sheet 1040. When the third glass sheet is in the closed state, the portion of the second glass sheet 1030 covered by the third glass sheet 1040 is exposed as the third glass sheet 1040 moves. FIG. 10C illustrates the third glass laminate in an "open" state, while exposing the major portion of the second glass sheet 1030 previously covered by the third glass sheet 1040. In some embodiments, the portion of the retracted (or opened) third glass sheet 1040 can be stored within the interior compartment of the vehicle and hidden away from the field of view of the vehicle rider.

Light guide plates (LGP) are typically made of a highly transmissive plastic material (eg, polymethyl methacrylate (PMMA)). Despite the excellent properties (eg, light transmission) of such plastic materials, such materials exhibit relatively poor mechanical properties (eg, stiffness, coefficient of thermal expansion (CTE), and hygroscopicity) and are difficult to make large sizes. . Thus, the LGP of the present disclosure is made of a glass substrate material, resulting in improved LGP properties that achieve improved optical performance in light transmission, solarization, scattering, and optical coupling, as well as in stiffness, CTE, and Excellent mechanical properties in terms of hygroscopicity. An exemplary LGP in accordance with the present disclosure can provide a tunable color shift depending on the glass composition. For an exemplary glass light guide, the color shift Δy can be understood as Δy=y(L ₂ )-y(L ₁ ), where L ₂ and L ₁ are the Z position away from the source emitter along the panel or substrate direction ( For example, LED or others), and in the case of L ₂ -L ₁ = 0.5 m, in each LGP, the small difference between point 1 and point 2 is converted into less color shift. To achieve low color shift, the exemplary LGP absorption curve should exhibit some shape (eg, the blue absorption at 450 nm should be below the red absorption at 630 nm). Therefore, the lower the blue absorption relative to the red absorption, the lower the color shift in the LGP. Control of optical absorption in exemplary embodiments, specifically Cr and Ni, can be achieved by manipulating the optical alkalinity of the glass.

The cost associated with manufacturing the LGP can depend on the glass composition. For example, while the melt processing parameters can be manipulated to shift the optical absorption exhibited by a particular glass composition, this cannot be used to completely remove the impurity metal absorption from the visible portion of the spectrum. In addition, the cost of high purity raw materials (processed into a feedstock containing very small amounts of impurity metals) is in some cases eight times more expensive than standard feedstocks. Therefore, it is important to design a minimized glass composition for the use of the most expensive materials. The conventional glass LGP system uses a composition in the aluminosilicate composition space. However, the cost of such a composition is somewhat unfavorable for profit, and thus the exemplary compositions described herein include a potassium citrate composition that does not contain alumina to achieve a lower cost LGP.

In general, LGP uses white LEDs or blue LEDs. The presence of a transition metal in the glass causes the formation of an absorption band in the visible region. These absorption bands can cause a decrease in the amount of light passing through the glass (which the viewer sees as a decrease in the brightness of the LCD screen) and causes an increase in color shift. Thus, the exemplary embodiment can maximize brightness and minimize color shift by controlling transition metals including iron, nickel, and chromium (due to the position of the strip and the absorption coefficient (strength) of the strips, each of the transition metals One particularly damages the transmission of the glass and increases the color shift). However, the exemplary embodiments described herein minimize the effects of the absorption bands by the structure of the individual glass networks, the structure of which is offset to some of the bands. High wavelengths (eg, increased transmission at 450 and 550 nm). The exemplary alumina-free potassium citrate composition described herein provides a glass network by changing the equilibrium state of the transition metal (eg, Cr, Ni) to a lower level (ie, by Lower absorption at lower wavelengths) to reduce the strength of the absorption band. For example, the Ni absorber in the exemplary compositions described herein is superior to the sodium aluminosilicate composition due to the use of K2O instead of Na2O. This is due in part to the large bond length required for the K2O bond shift (eg, the Ni absorber is from 450 nm towards longer wavelengths). Such an offset greatly increases the transmission of the exemplary LGP by 450 nm and provides a competitive advantage for the color shift and possible use of the blue LED in the LGP component.

The reduction in the absorption coefficient found in the exemplary alumina-free potassium niobate composition provides the added advantage that the glass can have a higher concentration of impurity metal, but still maintain the desired transmission and color shifts for the industry. This directly leads to additional cost savings opportunities due to the use of lower purity feedstocks (equivalent to lower costs). It has also been found that the exemplary alumina-free potassium citrate compositions described herein result in reduced manufacturing costs. For example, manufacturing costs are reduced by changing melt processing parameters (eg, flow). An exemplary alumina-free potassium citrate composition is capable of achieving high fluidity in a fusion stretch process (a viscosity curve that typically minimizes the difference between melt viscosity (200P) and tensile viscosity (35kP)), To control the cooling rate of the glass melt, and in this case provide a steeper viscosity curve, resulting in a higher flow rate. The exemplary viscosity curves of the embodiments described herein also result in improved service life of the melting furnace or can due to the lower wear of the refractory (e.g., zirconia) material.

In various embodiments, the glass composition of the glass sheet can comprise an iron (Fe) concentration of less than 50 ppm. In some embodiments, less than 25 ppm Fe may be present, or in some embodiments, the Fe concentration may be about 20 ppm or less. In an additional embodiment, the glass sheet can be formed by a polished float glass, a fusion draw process, a slot stretch process, a re-stretch process, or other suitable forming process.

According to one or more embodiments, the LGP may be made of glass comprising a colorless oxide composition selected from the group consisting of glass formers SiO ₂ , Al ₂ O ₃ , and/or B ₂ O ₃ . Exemplary glasses can also include fluxing agents to achieve advantageous melting and forming properties. Such fluxes include alkali metal oxides (Li ₂ O, Na ₂ O, K ₂ O, Rb ₂ O, and Cs ₂ O) and alkaline earth metal oxides (MgO, CaO, SrO, ZnO, and BaO). In one embodiment, the glass comprises a composition ranging from about 70 mole % to about 85 mole % SiO ₂ , between about 0 mole % to about 5 mole % of Al 2 O 3 , about 0 B between the mole% 5 mole% to about ₂ O _3, Na between about 0 mole% to about 10 mole percent ₂ O, K between about 0 mole% to about 12 mole% of ₂ O, between about 0 mole % to about 4 mole % of ZnO, between about 3 mole % to about 12 mole % of MgO, between about 0 mole % to about 5 mole % of CaO , between about 0 mole % to about 3 mole % of SrO, between about 0 mole % to about 3 mole % of BaO, and between about 0.01 mole % to about 0.5 mole % of SnO ₂ . Other glass compositions comprises a glass sheet, the glass sheet having between ₂ Al, from about 0 mole% to about 0.5 mole percent of greater than about 80 mole% SiO ₂ O _3, from about 0 mole% to about 0.5 mol% of B ₂ O ₃ , about 0 mol % to about 0.5 mol % of Na ₂ O, about 8 mol % to about 11 mol % of K ₂ O, about 0.01 From about 5% to about 4 moles of ZnO, from about 6 mole% to about 10 mole% of MgO, from about 0 mole% to about 0.5 mole% of CaO, about 0 moles. From about 0.5 mole % SrO, from about 0 mole % to about 0.5 mole % of BaO, and from about 0.01 mole % to about 0.11 mole % of SnO ₂ . Additional glass compositions include glass sheets that are substantially free of Al ₂ O ₃ and B ₂ O ₃ and that contain greater than about 80 mole % SiO ₂ , from about 0 mole percent to about 0.5 mole percent. Between 100% Na ₂ O, about 8 mole % to about 11 mole % K ₂ O, about 0.01 mole % to about 4 mole % ZnO, about 6 mole % to about 10 MgO between mole %, and SnO ₂ between about 0.01 mole% to about 0.11 mole%. In some embodiments, the glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof.

Additional glass compositions include glass sheets which are alumina-free potassium citrate compositions, and alumina-free potassium citrate compositions contain greater than about 80 mole % SiO ₂ , about 8 Between mol% to about 11 mol% K ₂ O, about 0.01 mol% to about 4 mol% ZnO, about 6 mol% to about 10 mol% MgO, And between about 0.01 mol% and about 0.11 mol% of SnO ₂ . In some embodiments, the glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof. Glass composition further comprises a glass sheet, the glass sheet having a SiO between about 72.82 mole% to about 82.03 mole% of _2, Al between about 0 mole% to about 4.8 mole percent ₂ O ₃ From about 0 mole % to about 2.77 mole % B ₂ O ₃ , from about 0 mole % to about 9.28 mole % of Na ₂ O, from about 0.58 mole % to about 10.58 mole % Between K ₂ O, about 0 mole % to about 2.93 mole % of ZnO, about 3.1 mole % to about 10.58 mole % of MgO, about 0 mole % to about 4.82 mole % Inter-CaO, between about 0 mole % to about 1.59 mole % of SrO, between about 0 mole % to about 3 mole % of BaO, and between about 0.08 mole % to about 0.15 mole % SnO ₂ . In a further embodiment, the glass sheet is substantially free of Al ₂ O ₃ , B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof.

The additional glass composition comprises a glass sheet that is substantially free of Al ₂ O ₃ and B ₂ O ₃ and contains greater than about 80 mole % SiO ₂ , and wherein the color shift of the glass is <0.005 . In some embodiments, the glass sheet comprises between about 8 moles and about 11 moles of K ₂ O, between about 0.01 moles to about 4 moles of ZnO, and about 6 moles to About 10 mol% of MgO, and about 0.01 mol% to about 0.11 mol% of SnO ₂ . The additional glass composition comprises a glass sheet that is substantially free of Al ₂ O ₃ , B ₂ O ₃ , Na ₂ O, CaO, SrO, and BaO, wherein the color shift of the glass is <0.005. In some embodiments, the glass sheet comprises greater than about 80 mole % SiO ₂ . In some embodiments, the glass sheet comprises between about 8 moles and about 11 moles of K ₂ O, between about 0.01 moles to about 4 moles of ZnO, and about 6 moles to About 10 mol% of MgO, and about 0.01 mol% to about 0.11 mol% of SnO ₂ .

In some of the glass compositions described herein, SiO ₂ can be used as a base glass former. In certain embodiments, the concentration of SiO ₂ can be greater than 60 mole percent to provide glass with density and chemical durability suitable for display glass or light guide glass, and to allow glass to be processed by downward stretching (eg, The liquidus temperature (liquidus viscosity) formed by the fusion treatment. In terms of the upper limit, the SiO ₂ concentration can generally be less than or equal to about 80 mole percent to allow the batch material to be melted using conventional high volume melting techniques (eg, Joule melting in a refractory melter). As the concentration of SiO ₂ increases, typically the 200 poise temperature (melting temperature) increases. In various applications, the SiO ₂ concentration is adjusted such that the glass composition has a melting temperature less than or equal to 1750 °C. In various embodiments, the molar % of SiO ₂ can range from about 70% to about 85%, or from about 72.82% to 82.03%, or alternatively from about 75% to about 85%. Within the range, or in the range of from about 80% to about 85%, and all subranges therebetween. In additional embodiments, the mole % of SiO ₂ can be greater than about 80%, greater than about 81%, or greater than about 82%.

Al ₂ O ₃ is another glass former used to make the glasses described herein. Higher molar percentages of Al ₂ O ₃ can improve the annealing point and modulus of the glass, but increase the melting and batch costs. In various embodiments, the molar % of Al ₂ O ₃ may range from about 0% to about 5%, or alternatively from about 0% to about 4.8%, or from about 0% to about Within the range of 4%, or in the range of about 0% to about 3%, and all subranges therebetween. In additional embodiments, the molar % of Al ₂ O ₃ can be less than about 0.1%. In other embodiments, the glass is substantially free of Al ₂ O ₃ . For the avoidance of doubt, substantially free is understood to mean that the glass does not have a composition (unless it is controlled to be batched or added in separate melt treatments), so its mole % is negligible or less than 0.01 mol%. Since the Al ₂ O ₃ system is an expensive raw material purchased in a pure form, the manufacturing cost of the exemplary embodiment is remarkably lowered with reference to these ranges of Al ₂ O ₃ .

B ₂ O ₃ is a glass forming agent and a fluxing agent, which contributes to melting and lowers the melting temperature. And for the liquidus temperature and viscosity have an effect. The addition of B ₂ O ₃ can be used to increase the liquidus viscosity of the glass. To achieve these effects, the B ₂ O ₃ concentration of the glass composition of one or more embodiments may be equal to or greater than 0.1 mole percent; however, some compositions may have a negligible amount of B ₂ O ₃ . As described above with respect to SiO ₂ , glass durability is very important for display applications. The durability can be controlled to some extent by the increased alkaline earth metal oxide concentration, and the durability is remarkably lowered by the increased B ₂ O ₃ content. As B ₂ O ₃ increases, the annealing point decreases, thus helping to maintain a low level of B ₂ O ₃ . Furthermore, it was found that B ₂ O ₃ shifts the redox reaction of Fe to Fe ³⁺ , thereby affecting blue transmission. Thus, in some embodiments, it has been found that the reduction in B ₂ O ₃ produces better optical properties. Thus, in various embodiments, the molar % of B ₂ O ₃ may range from about 0% to about 5%, or alternatively from about 0% to about 4%, or about 0%. It is in the range of about 3%, or in the range of about 0% to about 2.77%, and all subranges therebetween. In some embodiments, the glass may be substantially free of B ₂ O ₃ .

In addition to the glass formers (SiO ₂ , Al ₂ O ₃ , and B ₂ O ₃ ), the glasses described herein also include alkaline earth metal oxides. In one embodiment, at least three alkaline earth metal oxides are part of a glass composition (eg, MgO, CaO, BaO, and SrO). Alkaline earth metal oxides provide various properties important to the glass for melting, clarification, formation, and end use. Therefore, in order to improve the glass properties of these aspects, in one embodiment, the (MgO + CaO + SrO + BaO) / Al ₂ O ₃ ratio is between 0 and 2.0. As this ratio increases, the viscosity tends to decrease more strongly than the liquidus temperature, and thus it is increasingly difficult to obtain an appropriate high value for T _35k -T _liq . In the examples which are substantially free of alumina, the ratio of (MgO + CaO + SrO + BaO) / Al ₂ O ₃ cannot be calculated (i.e., Al ₂ O ₃ is zero or negligible).

For certain embodiments of the present disclosure, the alkaline earth metal oxide can be processed as a component of a substantially single composition. Compared to the glass forming the oxides SiO ₂ , Al ₂ O ₃ , and B ₂ O ₃ , this is because the effect of the alkaline earth metal oxide on the relationship between viscoelasticity, liquidus temperature, and liquidus phase is qualitative. More similar to each other. However, alkaline earth metal oxides CaO, SrO, and BaO can form feldspar minerals (especially anorthite (CaAl ₂ Si ₂ O ₈ ) and celsian feldspar (BaAl ₂ Si ₂ O ₈ ) and cerium-containing solid solution), but MgO is not largely involved in such crystallization. Thus, when the feldspar crystals are already in the liquid phase, the superaddition of MgO can be used to stabilize the liquid relative to crystallization and thus lower the liquidus temperature. At the same time, the viscosity curve usually becomes steeper, lowering the melting temperature, while having little or no effect on the low temperature viscosity.

A small amount of MgO can be favored by melting by lowering the melting temperature, which is favored by lowering the liquidus temperature and increasing the liquidus viscosity while maintaining a high annealing point. In various embodiments, the glass composition comprises MgO in an amount ranging from about 3 mole percent to about 12 mole percent, or from about 6 mole percent to about 10 mole percent, or about 3.1 Mole% to a range of about 10.58 mol%, and all subranges therebetween.

Without being bound by any particular theory of operation, it is believed that the presence of calcium oxide in the glass composition can result in low liquidus temperatures (high liquidus viscosity), high annealing points and modes in the optimum range for display and light guide applications. Quantity, and CTE. It also contributes to chemical durability and is a relatively inexpensive batch material compared to other alkaline earth metal oxides. However, at high concentrations, CaO increases density and CTE. In addition, at a sufficiently low concentration of SiO ₂ , CaO stabilizes the anorthite and thus lowers the liquidus viscosity. Thus, in one or more embodiments, the CaO concentration can be between 0 and 5 mole%. In various embodiments, the glass composition has a CaO concentration in the range of from about 0 mol% to about 4.82 mol%, or in the range of from about 0 mol% to about 4 mol%, or at about 0. Molar% to about 3 mol%, or in the range of from about 0 mol% to about 0.5 mol%, or in the range of from about 0 mol% to about 0.1 mol%, and All subranges. In other embodiments, the glass is substantially free of CaO.

Both SrO and BaO can result in low liquidus temperatures (high liquidus viscosity). The choice and concentration of these oxides can be selected to avoid an increase in CTE and density and a decrease in modulus and annealing point. The relative proportions of SrO and BaO can be balanced to achieve a suitable combination of physical properties and liquidus viscosity such that the glass can be formed by a downward stretching process. In various embodiments, the glass comprises SrO in the range of from about 0 to about 2.0 mole percent, or from about 0 mole percent to about 1.59 mole percent, or from about 0 to about 1 mole percent, and All subranges. In other embodiments, the glass is substantially free of SrO. In one or more embodiments, the glass comprises BaO in the range of from about 0 to about 2 mole percent, or from 0 to about 1.5 mole percent, or from 0 to about 1.0 mole percent, and all of Subrange. In other embodiments, the glass is substantially free of BaO.

In addition to the above compositions, the glass compositions described herein can include a variety of other oxides to tailor various physical, melting, clarifying, and forming attributes of the glass. Examples of such other oxides include, but are not limited to, TiO ₂ , MnO, V ₂ O ₃ , Fe ₂ O ₃ , ZrO ₂ , ZnO, Nb ₂ O ₅ , MoO ₃ , Ta ₂ O ₅ , WO ₃ , Y ₂ O ₃ , La ₂ O ₃ , and CeO ₂ , as well as other rare earth oxides and phosphates. In one embodiment, the amount of each of the oxides can be less than or equal to 2.0 mole percent, and the total combined concentration can be less than or equal to 5.0 mole percent. In some embodiments, the glass composition comprises ZnO in an amount ranging from about 0 to about 4.0 mole percent, or from about 0 to about 3.5 mole percent, or from about 0 to about 3.01 mole percent, or about 0 to about 2.0 mol%, and all subranges therebetween. In other embodiments, the glass composition comprises: from about 0.1 mole percent to about 1.0 mole percent titanium oxide; from about 0.1 mole percent to about 1.0 mole percent vanadium oxide; from about 0.1 mole percent to about 1.0 mole percent Ear % of cerium oxide; from about 0.1 mol% to about 1.0 mol% of manganese oxide; from about 0.1 mol% to about 1.0 mol% of zirconia; from about 0.1 mol% to about 1.0 mol% of tin oxide About 0.1 mol% to about 1.0 mol% of molybdenum oxide; about 0.1 mol% to about 1.0 mol% of cerium oxide; and all subranges of any of the above transition metal oxides. The glass compositions described herein may also include various contaminants associated with the batch material and/or introduced into the glass by melting, clarifying, and/or forming equipment for producing the glass. The glass may also contain SnO ₂ due to Joule melting using a tin oxide electrode and/or a batch of tin-containing material (eg, SnO ₂ , SnO, SnCO ₃ , SnC ₂ O _{2 ,} etc.).

Further, in some embodiments, the cerium oxide content is increased and/or ZnO is added to improve the surface durability of the glass. Accordingly, in some embodiments, the glass composition comprises ZnO in an amount ranging from about 0 to about 4 mole percent, or from about 0.01 to about 4 mole percent, or from about 0 to about 2.93 mole percent, All subranges between them.

The glass compositions described herein may contain some alkali components (eg, such glasses are not alkali-free glasses). As used herein, "alkali-free glass" line is equal to a total base concentration is less than 0.1 mole percent, or glass, wherein the total base concentration is based Na ₂ O, K ₂ O, the total Li ₂ O concentration. In some embodiments, the glass comprises Li ₂ O in the range of from about 0 to about 3.0 mole %, in the range of from about 0 to about 2.0 mole %, or from about 0 to about 1.0 mole % Within the scope, as well as all subranges in between. In other embodiments, the glass is substantially free of Li ₂ O. In other embodiments, the glass comprises Na ₂ O in the range of from about 0 mole % to about 10 mole %, in the range of from about 0 mole % to about 9.28 mole %, at about 0 to Within the range of about 5 mole percent, in the range of from about 0 to about 3 mole percent, or in the range of from about 0 to about 0.5 mole percent, and all subranges therebetween. In other embodiments, the glass is substantially free of Na ₂ O. In some embodiments, the glass comprises K ₂ O in the range of from about 0 to about 12.0 mol %, in the range of from about 8 to about 11 mol %, and in the range of from about 0.58 to about 10.58 mol % Within the scope, and all subranges in between. With regard to these ranges of K ₂ O, Na ₂ O, and other basic materials, it was found that the absorption of the components (Ni, Fe, Cr) shifted from 450 nm toward the larger due to the larger bond length required for K ₂ O bonding. Long wavelengths, so the components of the contaminants (eg, Ni, Fe, Cr) are better absorbed. This offset significantly increases the 450 nm transmission of the exemplary embodiment, thereby providing a competitive advantage for color shifts in the LGP and the use of blue LEDs. In addition, it has been surprisingly found that the lower absorption bands of Ni, Fe, and/or Cr allow the use of less pure materials while maintaining the properties of current glasses, while reducing overall cost.

In some embodiments, the glass compositions described herein can have one or more or all of the following compositional features: (i) As ₂ O ₃ concentration is at most 0.05 to 1.0 mol%; (ii) Sb _{The 2} O ₃ concentration is at most 0.05 to 1.0 mol%; (iii) the SnO ₂ concentration is at most 0.25 to 3.0 mol%.

Since As ₂ O ₃ is an effective high temperature clarifying agent for display glasses, in some embodiments described herein, As ₂ O ₃ is used for clarification due to its excellent clarifying properties. However, As ₂ O _{3 is} toxic and requires special handling during the glass manufacturing process. Thus, in certain embodiments, the clarification is carried out without the use of large amounts of As ₂ O ₃ (i.e., the finished glass has as much as 0.05 mole percent of As ₂ O ₃ ). In one embodiment, As ₂ O ₃ is not particularly used in the clarification of the glass. In this case, the finished glass typically has As ₂ O _{3 of} up to 0.005 mole percent due to the presence of contaminants in the batch material and/or equipment used to melt the batch material.

Although it does not have toxicity such as As ₂ O ₃ , Sb ₂ O _{3 is} also toxic and requires special treatment. Furthermore, Sb ₂ O ₃ increases density, increases CTE, and lowers the annealing point compared to glass using As ₂ O ₃ or SnO ₂ as a fining agent. Thus, in certain embodiments, the clarification is carried out without the use of large amounts of Sb ₂ O ₃ (i.e., the finished glass has up to 0.05 mole percent of Sb ₂ O ₃ ). In another embodiment, Sb ₂ O ₃ is not particularly used in the clarification of the glass. In this case, the finished glass typically has up to 0.005 mole percent Sb ₂ O ₃ due to batch material and/or contaminants present in the equipment used to melt the batch material.

Tin clarification (i.e., SnO ₂ clarification) is less effective than As ₂ O ₃ and Sb ₂ O ₃ clarification, but SnO ₂ is a ubiquitous material with no known hazardous properties. Further, for many years, SnO _{2 has} been used as a component of display glass by using a tin oxide electrode in the Joule melting of batch materials of such glass. When such glasses are used in the manufacture of liquid crystal displays, the presence of SnO ₂ in the display glass does not produce any known adverse effects. However, a high concentration of SnO ₂ is not preferred because it causes crystal defects to form in the display glass. In one embodiment, the concentration of SnO ₂ in the finished glass is less than or equal to 0.5 mole percent, in the range of from about 0.01 to about 0.5 mole percent, in the range of from about 0.01 to about 0.11 mole percent, at about 0.08 mole % to about 0.15 mole %, and all subranges therebetween.

If desired, tin clarification can be used alone or in combination with other clarification techniques. For example, tin clarification can be combined with halide clarification (eg, bromine clarification). Other possible combinations include, but are not limited to, tin clarification plus sulfate, sulfide, cerium oxide, mechanical foaming, and/or vacuum clarification. These other clarification techniques are expected to be used separately. In certain embodiments, the (MgO + CaO + SrO + BaO) / Al ₂ O ₃ ratio and the alkaline earth metal concentration alone are maintained within the above range, making the clarification process easier and more efficient.

In one or more embodiments and as described above, an exemplary glass can have a low concentration of elements while producing visible absorption in a glass matrix. Such absorbents include transition elements (eg, Ti, V, Cr, Mn, Fe, Co, Ni, and Cu) and rare earth elements with partially filled f orbitals (including Ce, Pr, Nd, Sm, Eu, Tb). , Dy, Ho, Er, and Tm). Among them, the most abundant of the conventional materials for glass melting are Fe, Cr, and Ni. Iron is a common contaminant of sand, a source of SiO ₂ and a typical contaminant in the source of aluminum, magnesium, and calcium. Chromium and nickel are usually present in ordinary glass raw materials at low concentrations, but can be present in various sand ores and must be controlled at low concentrations. In addition, chromium and nickel can be introduced via contact with stainless steel (for example, when the raw material or cullet is crushed by a crucible, by erosion by a steel liner mixer or a screw feeder, or unexpectedly with structural steel in the melting device itself) contact). In some embodiments, the concentration of iron may specifically be less than 50 ppm, more specifically less than 40 ppm, or less than 25 ppm, while the concentration of Ni and Cr may specifically be less than 5 ppm, more specifically less than 2 ppm. In further embodiments, each of the concentrations of all of the other absorbents listed above may be less than 1 ppm. In various embodiments, the glass comprises 1 ppm or less of Co, Ni, and Cr, or alternatively less than 1 ppm of Co, Ni, and Cr. In various embodiments, the transition elements (V, Cr, Mn, Fe, Co, Ni, and Cu) may be present in the glass in an amount of 0.1% by weight or less. In some embodiments, the concentration of Fe can be < about 50 ppm, < about 40 ppm, < about 30 ppm, < about 20 ppm, or < about 10 ppm.

In accordance with some embodiments, the LGP can include the glass materials disclosed in U.S. Patent Application Serial No. 15/769,639, the disclosure of which is incorporated herein by reference.

In other embodiments, since the bond of the transition metal oxide in the glass network will absorb light rather than allowing the light to break the basic bond of the glass network, it has been found that the addition does not cause absorption from 300 nm to 650 nm and has < Certain transition metal oxides of the absorption band of about 300 nm will prevent network defects from occurring in the formation process, and will prevent color centers (for example, light absorption of 300 nm to 650 nm) after UV exposure when the cured ink is produced. Thus, exemplary embodiments can include any one or combination of the following transition metal oxides to minimize the formation of a UV color center: from about 0.1 mole % to about 3.0 mole % zinc oxide; about 0.1 mole % Up to about 1.0 mole percent titanium oxide; about 0.1 mole% to about 1.0 mole percent vanadium oxide; about 0.1 mole% to about 1.0 mole% cerium oxide; about 0.1 mole% to about 1.0 mole % manganese oxide; from about 0.1 mol% to about 1.0 mol% of zirconia; from about 0.1 mol% to about 1.0 mol% of arsenic oxide; from about 0.1 mol% to about 1.0 mol% of tin oxide; From about 0.1 mol% to about 1.0 mol% of molybdenum oxide; from about 0.1 mol% to about 1.0 mol% of cerium oxide; from about 0.1 mol% to about 1.0 mol% of cerium oxide; and any of the above transition metals All sub-ranges of oxides. In some embodiments, an exemplary glass may comprise from 0.1 mol% to less than or less than about 3.0 mol% zinc oxide, titanium oxide, vanadium oxide, hafnium oxide, manganese oxide, zirconium oxide, arsenic oxide, tin oxide, Any combination of molybdenum oxide, cerium oxide, and cerium oxide.

Even in the case where the concentration of the transition metal is within the above range, there may be a matrix and redox effect which cause undesired absorption. For example, those of ordinary skill in the art should understand that iron exhibits two valences (+3 or ferric iron states and +2 or divalent iron states) in the glass. In glass, the Fe ³⁺ system produces absorption at about 380, 420, and 435 nm, while Fe ²⁺ absorbs primarily at the IR wavelength. Thus, in accordance with one or more embodiments, it may be desirable to convert as much iron as possible into a ferrous state to achieve high transmission at visible wavelengths. One non-limiting method of accomplishing this is to add ingredients that are essentially used for reduction to the glass batch. The components may include carbon, hydrocarbon, or reduced forms of certain metalloids (eg, bismuth, boron, or aluminum). However, if the degree of iron content is within the range (according to one or more embodiments, at least 10% of iron in the ferrous state, more specifically more than 20% iron in the ferrous state), Improved transmission is produced at short wavelengths. Thus, in various embodiments, the concentration of iron in the glass produces an attenuation of less than 1.1 dB/500 mm in the glass sheet.

In existing glasses, although the decrease in iron concentration minimizes absorption and yellow shift, it is difficult to completely eliminate. The propagation distance of about 700 mm for Δx and Δy measured for PMMA is 0.0021 and 0.0063. In exemplary glasses having the compositional ranges described herein, the color shift Δy is <0.015, and in the exemplary embodiment is less than 0.0021 and less than 0.0063. For example, in some embodiments, the color shift is measured as 0.007842, while in other embodiments, the measured is 0.005827. In other embodiments, an exemplary glass sheet can comprise a color shift Δy of less than 0.015 (eg, a range of from about 0.001 to about 0.015 (eg, about 0.001, 0.002, 0.003, 0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.010, 0.011, 0.012, 0.013, 0.014, or 0.015)). In other embodiments, the color shift of the transparent substrate can be less than 0.008, less than about 0.005, or less than about 0.003. The color shift is characterized by the use of the CIE 1931 standard to measure changes in the x and/or y chromaticity coordinates along the length L for color measurements of a given source illumination. For an exemplary glass light guide, the color shift Δy can be understood as Δy=y(L ₂ )-y(L ₁ ), where L ₂ and L ₁ are emitted away from the source along the panel or substrate direction (eg , LED or other) Z position, and where L _{2 -} L ₁ = 0.5 m. Exemplary light guide plates described herein have Δy < 0.015, Δy < 0.005, Δy < 0.003, or Δy < 0.001. The color shift of the light guide plate can be estimated by measuring the optical absorption of the light guide plate, while the optical absorption is used to calculate the internal transmission of the LGP over 0.5 m, and then the resulting transmission curve is multiplied by a typical LED source for the LCD backlight. (for example, Nichia NFSW157D-E). The (X, Y, Z) tristimulus values for this spectrum can then be calculated using the CIE color matching function. The values are then normalized by their sum to provide (x, y) chromaticity coordinates. The difference between the (x, y) value of the LGP transmitted LED spectrum multiplied by 0.5 m and the (x, y) value of the original LED spectrum is an estimate of the color shift contribution of the photoconductive material. In order to address residual color shifts, several exemplary solutions can be implemented. In one embodiment, the light guide blue can be used. By blue drawing the light guide, artificially increasing the absorption of red and green, and increasing the blue light extraction. Therefore, knowing how much different color absorption exists, you can return to the calculation and apply the blue paint pattern to compensate for the color shift. In one or more embodiments, shallow surface scattering features can be employed to extract light having an efficiency dependent on wavelength. For example, a square grating has maximum efficiency when the optical path difference is equal to half the wavelength. Thus, an exemplary texture can be used to preferentially extract blue and can be added to the main light extraction texture. In an additional embodiment, image processing can also be used. For example, an image filter can be applied to attenuate blue near the edge of the injected light. This may require offsetting the color of the LED itself to maintain the correct white color. In a further embodiment, the pixel geometry can be used to resolve the color shift by adjusting the surface ratio of the RGB pixels in the panel and increasing the surface of the blue pixels away from the edge of the injected light.

Thus, exemplary compositions as described above can be used to achieve strain points ranging from about 512 ° C to about 653 ° C, from about 540 ° C to about 640 ° C, or from about 570 ° C to about 610 ° C, and all subranges therebetween . Exemplary annealing points can range from about 564 ° C to about 721 ° C, from about 580 ° C to about 700 ° C, and all subranges therebetween. Exemplary softening points for the glass range from about 795 ° C to about 1013 ° C, from about 820 ° C to about 990 ° C, or from about 850 ° C to about 950 ° C, and all subranges therebetween. The density of the exemplary glass composition can range from about 2.34 gm/cc@20C to about 2.56 gm/cc@20C, from about 2.35 gm/cc@20C to about 2.55 gm/cc@20C, or about 2.4 gm/cc@ 20C to about 2.5gm/cc@20C, and all subranges between them. The CTE (0-300 °C) of the exemplary embodiment may range from about 64 x 10-7 / ° C to about 77 x 10-7 / ° C, about 66 x 10-7 / ° C to about 75 x 10-7 / °C, or about 68 x 10-7/°C to about 73 x 10-7/°C, and all subranges therebetween.

Certain embodiments and compositions described herein provide greater than 90%, greater than 91%, greater than 92%, greater than 93%, greater than 94%, or even greater than 95% internal transmission of 400 to 700 nm. The internal transmittance can be measured by comparing the light transmitted through the sample with the light emitted from the source. The broadband uncorrelated light can be cylindrically focused at the end of the material to be tested. Light emitted from the far side can be collected by the integrating sphere fibers coupled to the spectrometer and form sample data. By removing the material being tested from the system, the integrating sphere is translated directly in front of the focusing optics and the light is collected by the same device as the reference material. Subsequently, the absorbance at a given wavelength is given by:

An internal transmittance of more than 0.5 m is given by:

Thus, the 450 nm length 500 mm internal transmittance of the exemplary embodiments described herein can be greater than 85%, greater than 90%, greater than 91%, greater than 92%, greater than 93%, greater than 94%, or even greater than 95%. The internal transmittance of the 550 nm length 500 mm of the exemplary embodiments described herein may also be greater than 90%, greater than 91%, greater than 92%, greater than 93%, greater than 94%, or even greater than 96%. Other embodiments of the invention described herein may have a transmittance of 630 nm length 500 mm greater than 85%, greater than 90%, greater than 91%, greater than 92%, greater than 93%, greater than 94%, or even greater than 95%.

In one or more embodiments, the LGP has a width of at least about 1270 mm and a thickness of from about 0.5 mm to about 3.0 mm, wherein the transmittance of the LGP is at least 80% per 500 mm. In various embodiments, the thickness of the LGP is between about 1 mm and about 8 mm, and the width of the plate is between about 1100 mm and about 1300 mm.

In one or more embodiments, the LGP can be enhanced. For example, certain characteristics (eg, medium compressive stress (CS), high depth compression layer (DOL), and/or medium center tension (CT)) may be provided in an exemplary glass sheet for LGP. An exemplary process includes chemically strengthening the glass by preparing a glass sheet that is ion exchangeable. Subsequently, the glass sheet can be subjected to an ion exchange treatment, and then the glass sheet can be annealed if necessary. Of course, if the CS and DOL of the glass sheet are desired to be at the level produced by the ion exchange step, no annealing step is required. In other embodiments, an acid etch process can be used to increase the CS on a suitable glass surface. The ion exchange treatment may involve subjecting the glass sheet to a molten salt bath comprising KNO ₃ (preferably relatively pure KNO ₃ ) for one or more first temperatures and/or in the range of about 400 to 500 ° C and/or The first time period in the range of about 1 to 24 hours, such as, but not limited to, about 8 hours. It should be noted that other salt bath compositions are possible and such alternatives are considered within the skill of the art in the art. Therefore, the disclosure of KNO ₃ should not limit the scope of the appended claims. Such an exemplary ion exchange process can produce an initial CS at the surface of the glass sheet, an initial DOL in the glass sheet, and an initial CT within the glass sheet. Annealing can then produce the final CS, final DOL, and final CT as desired.

The third glass sheet may be a monomer glass sheet or a glass sheet composite. For example, the third glass sheet can be a composite of a plurality of glass sheets that are directly fused to each other. In one embodiment, the fused glass sheet comprises three glass sheets that make up the core (inner glass sheet) and the cladding (two outer glass sheets). In this case, the total internal reflection of light in the LGP can be limited to the core (inner glass sheet) or can be applied to all three glass sheets using the appropriate refractive index on the three glass sheets. Within the core (including the core and the cladding), the surrounding environment (eg, air) provides sufficient refractive index difference to achieve total internal refraction within the fused glass sheet.

Embodiments of the present disclosure are also directed to a vehicle including an illuminated glazing assembly in accordance with one or more embodiments described herein. For example, it is as shown in Figures 1 and 2. In accordance with one or more embodiments described herein, such a vehicle includes a body defining an interior, at least one opening in communication with the interior, and a glazing disposed in the opening, wherein the window includes an illuminated glazing assembly. In one or more embodiments, the laminate and/or light guide of the glazing assembly is complexly curved. The glazing unit can form sidelights, windshields, rear windows, rearview mirrors, and skylights in the vehicle. In some embodiments, the glazing unit may form an internal partition (not shown) in the interior of the vehicle, or may be disposed on an exterior surface of the vehicle and form an engine body outer cover, a headlight cover, a taillight cover, or a strut cover. . In one or more embodiments, the vehicle may include an interior surface (not shown, but may include a door trim, a seat back, a door panel, an instrument panel, a center console, a floor, and a post), and described herein The glazing unit or glazing unit is disposed on the inner surface. In one or more embodiments, the inner surface includes a display and the glass layer is disposed over the display. Vehicles used herein include automobiles, motorcycles, rail vehicles, locomotives, boats, boats, airplanes, helicopters, drones, spacecraft, and the like.

Another aspect of the present disclosure is directed to an architectural application including the illuminating glazing assembly described herein. In some embodiments, the architectural application includes railings, stairs, decorative panels or coverings for walls, columns, partitions, elevator cars that at least partially use laminates or glass articles in accordance with one or more embodiments. Body, home applications, windows, furniture, and other applications.

In one or more embodiments, the glazing unit is located in a vehicle or building application such that the second curved glass substrate faces the interior of the vehicle or the interior of the building or room such that the second curved glass substrate is Internally adjacent (and the first curved glass substrate is adjacent to the outside). In some embodiments, the second curved glass substrate is in direct contact with the interior. In one or more embodiments, the first surface of the first curved glass substrate is bare and without any coating. In one or more embodiments, the laminate is located in a vehicle or architectural application such that the second curved glass substrate faces the exterior of the vehicle or the exterior of the building or room such that the second curved glass substrate is Externally adjacent (and the first curved glass layer is adjacent to the interior). In some embodiments, the second curved glass substrate of the laminate is in direct contact with the exterior (ie, the surface of the second curved glass substrate facing outward is bare and without any coating).

In one or more embodiments, referring to FIG. 3, both first surface 312 and fourth surface 324 are bare and substantially free of any coating. In some embodiments, one or both of the edge portions of the first surface 312 and the fourth surface 324 can include a coating with the center portion exposed and substantially free of any coating. Optionally, one or both of the first surface 312 and the fourth surface 324 comprise a coating or surface finish (eg, an anti-reflective coating, an anti-glare coating or surface, an easy to clean surface, an ink decoration, a conductive coating) Layer, etc.). In one or more embodiments, the laminate includes one or more conductive coatings on one or both of the second surface 312 or the third surface 322 adjacent the intermediate layer 330.

In one or more embodiments, referring to FIG. 3A, both first surface 322 and fourth surface 314 are bare and substantially free of any coating. In some embodiments, one or both of the edge portions of the first surface 322 and the fourth surface 314 can include a coating with the center portion exposed and substantially free of any coating. Optionally, one or both of the first surface 322 and the fourth surface 314 comprise a coating or surface finish (eg, an anti-reflective coating, an anti-glare coating or surface, an easy to clean surface, an ink decoration, a conductive coating) Layer, etc.). In one or more embodiments, the laminate includes one or more conductive coatings on one or both of the second surface 324 or the third surface 312 adjacent the intermediate layer 330.

Instance

The following examples are set forth below to illustrate the methods and results in accordance with the disclosed subject matter. The examples are not intended to include all of the embodiments disclosed herein, but are intended to illustrate representative methods and results. The examples are not intended to exclude equivalents and modifications of the present disclosure that are obvious to those skilled in the art.

Efforts have been made to ensure accuracy with respect to numbers (eg, amounts, temperatures, etc.), but some errors and deviations should still be considered. Unless otherwise stated, the temperature is °C or ambient temperature and the pressure is at or near atmospheric. The composition itself is based on the oxide and the molar percentage is given as a given unit and normalized to 100%. There are many variations and combinations of reaction conditions (e.g., component concentrations, temperatures, pressures, and other reaction ranges and conditions) that can be used to optimize the purity and yield of the product obtained from the treatment. Only reasonable routine experimentation is required to optimize these processing conditions.

The glass properties listed herein and in Table 1 below are determined according to conventional techniques in the field of glass. Therefore, the linear coefficient of thermal expansion (CTE) in the temperature range of 25 to 300 ° C is represented by × 10 -7 / ° C, and the annealing point is expressed in ° C. These are determined by fiber elongation techniques (E228-85 and C336, respectively, referenced by ASTM). The density expressed in grams/cm3 was measured by the Archimedes method (ASTM C693). The melting temperature in ° C (defined as the temperature of the glass melt exhibiting a viscosity of 200 poise) was calculated using the Fulcher equation in accordance with the high temperature viscosity data measured by the rotating cylinder viscosity method (ASTM C965-81).

The liquidus temperature of the glass in °C was measured using the standard gradient boat liquidus method of ASTM C829-81. This involves placing the cullet particles in a platinum boat, placing the boat in a furnace with a gradient temperature zone, heating the boat in the appropriate temperature zone for 24 hours, and determining the highest crystal appearance in the interior of the glass by microscopy. temperature. More specifically, the glass samples were completely removed from the Pt boat and examined using polarized light microscopy to identify the location and nature of the crystals formed on the Pt and air interfaces and inside the sample. Since the gradient of the furnace is known, the temperature relative to the position can be estimated to be within 5 to 10 °C. The temperature at which crystallization is observed in the inner portion of the sample is considered to represent the liquidus of the glass (for the corresponding test period). Sometimes the test is carried out for a longer period of time (for example, 72 hours) to observe the slower growth phase. The liquidus viscosity in poise is determined by the liquidus temperature and the coefficient of the Fulcher equation. If included, the Young's modulus values in GPa are determined using the general type of resonant ultrasonic spectroscopy techniques described in ASTM E1875-00e1.

Exemplary glass in the tables herein was prepared using milling to make 90% by weight commercial sand passing through a standard U.S. 100 mesh screen as the source of cerium oxide. Alumina is the source of alumina, periclite is the source of MgO, limestone is the source of CaO, strontium carbonate, strontium nitrate or a mixture thereof is the source of SrO, strontium carbonate is the source of BaO, and tin oxide (IV) is the source of SnO2. The raw materials are thoroughly mixed, placed in a platinum vessel suspended in a furnace heated by a cesium carbide glow rod, melted and stirred at a temperature between 1600 and 1650 ° C for several hours to ensure uniformity, and delivered through the bottom of the platinum container The orifice. The resulting glass cake was annealed at or near the annealing point, followed by various experimental methods to determine physical, viscous, and liquidus properties.

These methods are not unique, and the glasses in the tables herein can be prepared using standard methods known to those skilled in the art. The methods include continuous melt processing (e.g., in a continuous melt process wherein the melter for continuous melt processing is heated by gas, electrical power, or a combination thereof).

Materials suitable for producing exemplary glasses include: commercially available sand as a source of SiO2; alumina, aluminum hydroxide, hydrated alumina, and various aluminum silicates, nitrates, and halogenates as sources of Al2O3 Boric acid, anhydrous boric acid, and boron oxide as a source of B2O3; periclase, dolomite (also a source of CaO), magnesium oxide, magnesium carbonate, magnesium hydroxide, and various forms of magnesium as a source of MgO Lithium silicate, aluminosilicate, nitrate, and halide; limestone, aragonite, dolomite (also a source of MgO), limestone, and various forms of calcium citrate as a source of CaO , aluminosilicates, nitrates, and halides; and oxides, carbonates, nitrates, and halides of cerium and lanthanum. If a chemical clarifying agent is required, tin can be added as SnO2 as a mixed oxide with another major glass composition (for example, CaSnO3), or as SnO, tin oxalate, tin halide, or in the field under oxidizing conditions. Other tin compounds known to the skilled person are added. .

The glass in the table herein may contain SnO2 as a fining agent, but other chemical fining agents may also be used to obtain a glass of sufficient quality for display applications. For example, an exemplary glass can use any one or combination of As2O3, Sb2O3, CeO2, Fe2O3, and halides as a controlled addition to promote clarification, and any of these can be combined with an example The SnO2 chemical clarifying agent shown in the combination is used in combination. Among them, As2O3 and Sb2O3 are generally considered to be hazardous materials and are controlled in the waste stream (for example, may be produced during glass manufacturing or processing of TFT panels). Therefore, it is desirable to limit the concentrations of As2O3 and Sb2O3 to not more than 0.005 mol% individually or in combination.

In addition to the controlled incorporation of elements in the exemplary glass, the properties of the final glass are fine-tuned through low levels of contamination in the feedstock, through high temperature corrosion of the refractory and precious metals in the manufacturing process, or through low degree of controlled introduction. Almost all of the stabilizing elements in the periodic table are present in the glass to some extent. For example, zirconium can be introduced as a contaminant by interacting with a zirconium-rich refractory. As another example, platinum and rhodium can be introduced via interaction with a noble metal. As another example, iron can be introduced as an impurity in the feedstock or added controllably to enhance control of the gaseous inclusions. As another example, manganese can be introduced to control color or enhance control of gaseous inclusions.

Hydrogen is inevitably present in the form of a hydroxyl anion OH-, and its presence can be determined via standard infrared spectroscopy techniques. The dissolved hydroxyl ions significantly and non-linearly affect the annealing point of the exemplary glass, so in order to achieve the desired annealing point, it may be necessary to adjust the concentration of the primary oxide composition to compensate. The hydroxyl ion concentration can be controlled to some extent by the choice of raw materials or the choice of the melting system. For example, boric acid is the primary source of hydroxyl groups, and the use of boron oxide in place of boric acid can be a useful means of controlling the concentration of hydroxyl groups in the final glass. The same reason applies to other latent materials containing hydroxyl ions, hydrates, or compounds containing physically adsorbed or chemisorbed water molecules. If a burner is used in the melt processing, it is also possible to introduce hydroxyl ions by burning a combustion product of natural gas and related hydrocarbons, and thus it may be desirable to transfer the energy used in the melting from the burner to the electrode for compensation. Alternatively, an iterative process of adjusting the primary oxide composition can be modified to compensate for the deleterious effects of dissolved hydroxyl ions.

Sulfur is usually present in natural gas and is also an impurity component in many carbonate, nitrate, halide, and oxide feedstocks. In the form of SO2, sulfur may be a troublesome source of gaseous inclusions. The tendency to form SO2-rich defects can be managed to a large extent by controlling the degree of sulfur content in the feedstock and by introducing a relatively low level of relatively reduced polyvalent cations into the glass matrix. Although not wishing to be bound by theory, the gaseous inclusions rich in SO2 appear to be produced primarily by reduction of the sulfate (SO4=) dissolved in the glass. The elevated rhodium concentration of the exemplary glass appears to increase sulfur retention in the glass during the early stages of melting, but as noted above, helium is required to achieve low liquidus temperatures, thus requiring high T35k-Tliq and high liquidus viscosity. . Controlling the degree of sulfur content in the feedstock to a lesser extent is a useful method of reducing dissolved sulfur (possibly sulfate) in the glass. More specifically, the weight of sulfur in the batch material is preferably less than 200 ppm, and the weight of sulfur in the batch material is more preferably less than 100 ppm.

The reduced multivalents can also be used to control the tendency of exemplary glasses to form SO2 blister. While not wishing to be bound by theory, these elements are manifested as potential electron donors that inhibit the electromotive force of sulfate reduction. Sulfate reduction can be written in the form of a semi-reaction (eg, SO4=→SO2+O2+2e-, where e- represents an electron). The "equilibrium constant" of the half reaction is Keq = [SO2] [O2] [e - 2 / [SO4 =], wherein the brackets indicate chemical activity. Ideally, it is desirable to force the reaction to produce sulfate from SO2, O2, and 2e-. The addition of nitrates, peroxides, or other oxygen-rich feedstocks may be helpful, but may also be detrimental to sulfate reduction in the early stages of melting, and may offset the benefits added during the first stage. SO2 has very low solubility in most glasses, so it is impractical to add to the glass melt process. You can "add" electrons by reducing multivalents. For example, for divalent iron (Fe2+), a suitable electron half-reaction is given as 2Fe2+→2Fe3++2e-.

This "activity" of the electrons forces the sulfate reduction reaction to the left and stabilizes the SO4 = in the glass. Suitable reducing polyvalents include, but are not limited to, Fe2+, Mn2+, Sn2+, Sb3+, As3+, V3+, Ti3+, and other multivalents that are well known to those of ordinary skill in the art. In each case, it is important to minimize the concentration of such compositions to avoid deleterious effects on the color of the glass, or in the case of As and Sb, to avoid adding levels of content that are high enough for the end user to handle. The waste management complicates these compositions.

In addition to the primary oxide composition of the exemplary glass, as well as the secondary or impurity components described above, the halide can act as a contaminant introduced through the selection of the feedstock or as a control for eliminating gaseous inclusions in the glass. Sexual composition, but exists in various levels. As a fining agent, the halide can be incorporated with a content of about 0.4 mol% or less, but it is generally desirable to use a lower amount if possible to avoid corrosion of the exhaust gas treatment equipment. In some embodiments, the concentration of the individual halide elements is less than about 200 ppm for each individual halide, or less than about 800 ppm for the sum of all halide elements.

In addition to the primary oxide compositions, minor and impurity compositions, multivalents, and halide fining agents, other concentrations of other colorless oxide compositions are incorporated to achieve the desired physical, solar, and optical properties. Or viscoelastic properties may be useful. Such oxides include, but are not limited to, TiO2, ZrO2, HfO2, Nb2O5, Ta2O5, MoO3, WO3, ZnO, In2O3, Ga2O3, Bi2O3, GeO2, PbO, SeO3, TeO2, Y2O3, La2O3, Gd2O3, and common knowledge in the field. Others are known. By adjusting the relative proportions of the primary oxide composition of the exemplary glass, it is possible to add up to about 2 moles to 3 mole % of such colorless oxide, for annealing points, T35k-Tliq, or liquid Phase line viscosity has no unacceptable effect. For example, some embodiments may include any one or combination of the following transition metal oxides to minimize the formation of a UV color center: from about 0.1 mole% to about 3.0 mole% zinc oxide; about 0.1 mole % to about 1.0 mol% of titanium oxide; about 0.1 mol% to about 1.0 mol% of vanadium oxide; about 0.1 mol% to about 1.0 mol% of cerium oxide; about 0.1 mol% to about 1.0 mol Mn% manganese oxide; from about 0.1 mol% to about 1.0 mol% zirconia; from about 0.1 mol% to about 1.0 mol% arsenic oxide; from about 0.1 mol% to about 1.0 mol% tin oxide About 0.1 mol% to about 1.0 mol% of molybdenum oxide; about 0.1 mol% to about 1.0 mol% of cerium oxide; about 0.1 mol% to about 1.0 mol% of cerium oxide; and any of the above transitions All sub-ranges of metal oxides. In some embodiments, an exemplary glass may comprise from 0.1 mol% to less than or less than about 3.0 mol% zinc oxide, titanium oxide, vanadium oxide, hafnium oxide, manganese oxide, zirconium oxide, arsenic oxide, tin oxide, Any combination of molybdenum oxide, cerium oxide, and cerium oxide.

Table 1 shows examples of glasses with high transmission as described herein (samples 1 to 106).
Table 1

As shown in the above table, in some embodiments, an exemplary glazing may comprise a glass sheet having a front side, a back side opposite the front side, and a thickness, the front side having a width and a height, the thickness being between the front side and the back side, and forming Around the four edges of the front and back sides, wherein the glass sheet comprises between about 70 moles and about 85 mole % of SiO ₂ , between about 0 mole % and about 5 mole % of Al ₂ O ₃ , From about 0 mole % to about 5 mole % of B ₂ O ₃ , between about 0 mole % to about 10 mole % of Na ₂ O, between about 0 mole % to about 12 mole % K ₂ O, between about 0 mole % to about 4 mole % of ZnO, between about 3 mole % to about 12 mole % of MgO, between about 0 mole % to about 5 mole % CaO, between about 0 mole % to about 3 mole % of SrO, between about 0 mole % to about 3 mole % of BaO, and between about 0.01 mole % to about 0.5 mole % SnO ₂ .

In other embodiments, the glazing may comprise a front side, a front side opposite the front side, and a thickness of the glass sheet, the front side having a width and a height, the thickness being between the front side and the back side, and forming four sides around the front and back sides. An edge wherein the glass sheet comprises greater than about 80 mole % SiO ₂ , between about 0 mole % to about 0.5 mole % of Al ₂ O ₃ , between about 0 mole % to about 0.5 mole % B ₂ O ₃ , from about 0 mole % to about 0.5 mole % of Na ₂ O, from about 8 mole % to about 11 mole % of K ₂ O, from about 0.01 mole % to about 4 moles Between 5% of the ear, between about 6 moles to about 10 mole % of MgO, between about 0 mole % to about 0.5 mole % of CaO, from about 0 mole % to about 0.5 mole % Between SrO, between about 0 mole % to about 0.5 mole % of BaO, and between about 0.01 mole % to about 0.11 mole % of SnO ₂ .

In a further embodiment, the glass article can comprise a glass sheet having a front side, a back side opposite the front side, and a thickness, the front side having a width and a height, the thickness being between the front side and the back side, and forming four sides around the front and back sides. An edge wherein the glass sheet is substantially free of Al ₂ O ₃ and B ₂ O ₃ and comprises greater than about 80 mole % SiO ₂ , from about 0 mole % to about 0.5 mole % Na ₂ O, From about 8 mole % to about 11 mole % K ₂ O, between about 0.01 mole % to about 4 mole % ZnO, between about 6 mole % to about 10 mole % MgO, And between about 0.01 mol% and about 0.11 mol% of SnO ₂ . In some embodiments, the glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof.

In an additional embodiment, the glazing may comprise a front side, a front side opposite the front side, and a thickness of the glass sheet, the front side having a width and a height, the thickness being between the front side and the back side, and forming four sides around the front and back sides. An edge wherein the glass sheet comprises an alumina-free potassium silicate composition and the alumina-free potassium silicate composition comprises greater than about 80 mole % SiO ₂ , from about 8 mole percent to about 11 mole percent Between K ₂ O, between about 0.01 mol% to about 4 mol% ZnO, between about 6 mol% to about 10 mol% MgO, and about 0.01 mol% to about 0.11 mol % between SnO ₂ . In some embodiments, the glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof.

In some embodiments, the glass article can comprise a glass sheet having a front side, a back side opposite the front side, and a thickness, the front side having a width and a height, the thickness being between the front side and the back side, and forming four sides around the front and back sides. edge, wherein the glass material comprises SiO between about 82.03 mole% to about 72.82 mole% _2, Al between about 0 mole% to about 4.8 mole percent ₂ O _3, from about 0 mole% to about 2.77 moles of B ₂ O ₃ , about 0 mole % to about 9.28 mole % of Na ₂ O, about 0.58 mole % to about 10.58 mole % of K ₂ O, about 0 From about 3.9% to about 2.93 moles of ZnO, from about 3.1 mole% to about 10.58 mole% of MgO, from about 0 mole% to about 4.82 mole% of CaO, about 0 moles. From about 1.59 mole % SrO, from about 0 mole % to about 3 mole % of BaO, and from about 0.08 mole % to about 0.15 mole % of SnO2. In a further embodiment, the glass sheet is substantially free of Al ₂ O ₃ , B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof.

In a further embodiment, the glass article can comprise a glass sheet having a front side, a back side opposite the front side, and a thickness, the front side having a width and a height, the thickness being between the front side and the back side, and forming four sides around the front and back sides. An edge wherein the glass sheet is substantially free of Al ₂ O ₃ and B ₂ O ₃ and comprises greater than about 80 mole % SiO ₂ , and wherein the color shift of the glass is <0.005. In some embodiments, the glass sheet comprises between about 8 moles and about 11 moles of K ₂ O, between about 0.01 moles to about 4 moles of ZnO, and about 6 moles to About 10 mol% of MgO, and about 0.01 mol% to about 0.11 mol% of SnO ₂ .

In an additional embodiment, the glazing may comprise a front side, a front side opposite the front side, and a thickness of the glass sheet, the front side having a width and a height, the thickness being between the front side and the back side, and forming four sides around the front and back sides. The edge, wherein the glass sheet is substantially free of Al ₂ O ₃ , B ₂ O ₃ , Na ₂ O, CaO, SrO, and BaO, and wherein the color shift of the glass is <0.005. In some embodiments, the glass sheet comprises greater than about 80 mole % SiO ₂ . In some embodiments, the glass sheet comprises between about 8 moles and about 11 moles of K ₂ O, between about 0.01 moles to about 4 moles of ZnO, and about 6 moles to About 10 mol% of MgO, and about 0.01 mol% to about 0.11 mol% of SnO ₂ .

In any of the above embodiments, the color shift of the glass is <0.008 or <0.005. In some embodiments, the strain temperature of the glass is between about 512 °C and 653 °C. In a further embodiment, the annealing temperature of the glass is between about 564 ° C and 721 ° C. In an additional embodiment, the softening temperature of the glass is between about 795 °C and 1013 °C. In some embodiments, the CTE of the glass is between about 64 x 10-7 / °C to about 77 x 10-7 / °C. In a further embodiment, the density of the glass is between about 2.34 gm/cc@20C to about 2.56 gm/cc@20C. In an additional embodiment, the glass article is a light guide having a thickness of between about 0.2 mm to about 8 mm. Such a light guiding plate can be manufactured by a fusion stretching process, a slot stretching process, or a floating process. In a further embodiment, the glass comprises less than 1 ppm of Co, Ni, and Cr, each. In some embodiments, the concentration of Fe is < about 20 ppm or < about 10 ppm. In some embodiments, a transmittance of 450 nm having a length of at least 500 mm is greater than or equal to 85%, a transmittance of 550 nm having a length of at least 500 mm is greater than or equal to 90%, or a transmittance of 630 nm having a length of at least 500 mm is greater than or equal to 85%, and Its combination. In a further embodiment, the glass sheet is chemically strengthened. In an additional embodiment, the glass comprises between 0.1 mol% and no more than about 3.0 mol% ZnO, TiO ₂ , V ₂ O ₃ , Nb ₂ O ₅ , MnO, ZrO ₂ , As ₂ O ₃ , SnO ₂ One or a combination of any of MoO ₃ , Sb ₂ O ₃ , and CeO ₂ .

Various aspects of the embodiments of the present disclosure will be described below.

Aspect (1) of the present disclosure relates to an illumination vehicle assembly comprising: an outer first glass sheet; an inner second glass sheet; disposed between the first glass sheet and the second glass sheet a third glass sheet comprising an inner surface, an outer surface opposite the inner surface, and an edge between the inner surface and the outer surface, the outer surface facing the inner surface of the second glass sheet, the second glass sheet The inner surface is opposite the side of the second glass sheet on which the intermediate layer is disposed; the light source is optically coupled to the edge, wherein the third glass sheet is a light guide for the light emitted by the light source.

Aspect (2) of the present disclosure relates to a lighting vehicle assembly according to aspect (1), wherein the vehicle component is an automotive glazing, and the automotive glazing includes a windshield, a rear window, side windows, a skylight, a transparent sunroof, and an inner roof panel. All or a portion of the panel, or exterior panel, or the vehicle component is a vehicle interior panel that includes all or a portion of the dashboard, instrument panel, center console, steering wheel, side door, or video or infotainment panel.

Aspect (3) of the present disclosure relates to an illumination vehicle assembly of aspect (1) or aspect (2), further comprising an edge reflector disposed on at least a portion of an edge of the third glass layer.

Aspect (4) of the present disclosure relates to an illumination vehicle assembly of aspect (3), wherein the edge reflector is configured to reflect light emitted from the light source to enhance reinforcement from an inner or outer surface of the third glass sheet The light output.

Aspect (5) of the present disclosure relates to the lighting vehicle assembly of any of the foregoing aspects, further comprising a planar reflector disposed on an outer surface of the third glass sheet.

Aspect (6) of the present disclosure relates to an illumination vehicle assembly of aspect (5), wherein the planar reflector is configured to reflect light emitted from the light source to enhance light output from an inner surface of the third glass sheet .

Aspect (7) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a low light loss.

Aspect (8) of the present disclosure relates to the lighting vehicle assembly of any of the foregoing aspects, wherein the third glass sheet is a melt drawn glass sheet.

Aspect (9) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet is chemically strengthened.

Aspect (10) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet is a non-alkaline glass.

Aspect (11) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the light source is disposed on the edge.

Aspect (12) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the light source comprises a light emitting diode (LED), a laser, or a light diffusing fiber.

Aspect (13) of the present disclosure relates to an illumination vehicle assembly according to aspect (12), wherein the light diffusing fibers are arranged such that light emitted from a circumferential surface of the light diffusing fiber enters the light guide via an edge of the third glass sheet board.

Aspect (14) of the present disclosure is the illumination vehicle assembly of any of the preceding aspects, wherein the light source comprises a plurality of light emitting sources along an edge of the third glass sheet.

Aspect (15) is the illumination vehicle assembly of any of the preceding aspects, wherein at least some of the plurality of light emitting sources are disposed on the third glass sheet along an edge of the third glass sheet On the opposite end of the inner surface of the material.

Aspect (16) of the present disclosure is an illumination vehicle assembly relating to aspect (14) or aspect (15), wherein the plurality of light emitting sources comprise a light emitting source of light of more than one color.

Aspect (17) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the light source comprises one or more red, green, and blue light sources.

Aspect (18) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the light source is configured to output ultraviolet light.

Aspect (19) of the present disclosure relates to an illumination vehicle assembly of aspect (18), further comprising a light extraction feature, the light extraction feature being located on or in at least one of an inner surface and an outer surface of the light guide panel, wherein The light extraction feature converts ultraviolet light into visible light that is output from the inner or outer surface of the third glass sheet.

Aspect (20) of the present disclosure is directed to an illumination vehicle assembly of aspect (19), wherein the light extraction features comprise a phosphor.

Aspect (21) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the light source is configured to output light of more than one color.

Aspect (22) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the third layer of glass is movable independently of the first and second sheets of glass.

Aspect (23) of the present disclosure is directed to an illuminated vehicle assembly of aspect (22) wherein the third layer of glass is retractable.

Aspect (24) of the present disclosure is directed to an illumination vehicle assembly of aspect (23) wherein the third layer of glass can be retracted in a direction substantially parallel to the interior surface of the second sheet of glass.

Aspect (25) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the inner surface and the outer surface of the third glass layer are substantially flat.

Aspect (26) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the first glass sheet and the second glass sheet are curved.

The illuminating vehicle assembly of any one of aspects (1) to (24) and (26), wherein at least one of an inner surface and an outer surface of the third glass layer is Bent.

The aspect of the present disclosure (28) is directed to the illumination vehicle assembly of any of the preceding aspects, further comprising a light extraction feature, the light extraction feature being located on at least one of an inner surface and an outer surface of the light guide plate or Among them.

Aspect (29) of the present disclosure is directed to an illumination vehicle assembly of aspect (28) wherein the light extraction features are shaped to form an information graphic.

Aspect (30) of the present disclosure is directed to an illumination vehicle assembly of aspect (28) wherein the light extraction features are arranged to enhance uniformity of light output across an inner or outer surface of the light guide.

Aspect (31) of the present disclosure relates to an illumination vehicle assembly of aspect (30) wherein the light extraction features are arranged to enhance uniformity of light output over a continuous surface of the light guide, the continuous surface being an inner or outer surface .

Aspect (32) of the present disclosure is directed to an illumination vehicle assembly of aspect (30) wherein the light extraction features are arranged to enhance uniformity of light output across discrete regions of the inner or outer surface of the light guide.

The aspect of the present disclosure (33) is directed to the illumination vehicle assembly of any one of aspects (28) to (32) wherein the light extraction features are by ink material, microstructured surface, tantalum, chemical etching, or ray It is formed by shot etching.

Aspect (34) of the present disclosure is directed to an illumination vehicle assembly of aspect (33) wherein the light extraction features are formed from an ink material that is printed onto the third glass sheet via inkjet printing.

The aspect of the present disclosure (35) is the illumination vehicle assembly of any one of aspects (28) to (34), wherein the light extraction feature comprises a protruding structure or a recessed structure.

The aspect of the present disclosure (36) is the illumination vehicle assembly of any one of aspects (28) to (35), wherein the light extraction feature is configured to extract light from the light guide plate and transmit the light through the third glass sheet The inside guides the light.

Aspect (37) is the illumination vehicle assembly of any of the preceding aspects, wherein the third glass sheet comprises a core glass layer, a first cladding layer disposed on a side of the core glass layer And a second cladding layer disposed on the other side of the core glass layer, wherein the core glass layer is fused with the first and second cladding layers.

Aspect (38) of the present disclosure is directed to an illumination vehicle assembly of aspect (37) wherein the refractive index of the core glass layer is different from the refractive indices of the first and second cladding layers.

Aspect (39) of the present disclosure relates to an illumination vehicle assembly of aspect (38), wherein the core glass layer is a light guiding layer based on a difference between a refractive index of the core glass layer and a refractive index of the first and second glass layers.

Aspect (40) of the present disclosure relates to an illumination vehicle assembly of aspect (38), wherein the core glass layer is used together with the first and second glass layers as a refractive index based on the core glass layer, the first and second glass layers a light guide layer having a refractive index and a refractive index of air around the third glass sheet.

Aspect (41) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the first glass sheet is a non-chemically strengthened glass sheet.

Aspect (42) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the first glass sheet comprises a material selected from the group consisting of soda lime glass and annealed glass.

Aspect (43) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the thickness of the first glass sheet ranges from about 1.5 mm to about 3.0 mm.

Aspect (44) of the present disclosure is directed to the illumination vehicle assembly of any of the preceding aspects, wherein the surface of the outer glass layer adjacent the intermediate layer is acid etched.

Aspect (45) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the second glass sheet is a tempered glass sheet.

Aspect (46) of the present disclosure is directed to an illuminated vehicle assembly of aspect (45) wherein the second sheet of glass is chemically strengthened.

Aspect (47) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the second glass sheet comprises one or more alkaline earth metal oxides such that the alkaline earth metal oxide content is At least about 5% by weight.

Aspect (48) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the second glass sheet comprises at least about 6% by weight alumina.

Aspect (49) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the thickness of the second glass sheet ranges from about 0.5 mm to about 1.5 mm.

Aspect (50) of the present disclosure is directed to an illuminated vehicle assembly of aspect (49) wherein the thickness of the second glass sheet is between about 0.5 mm and about 0.7 mm.

Aspect (51) of the present disclosure is the illumination vehicle assembly of any of the preceding aspects, wherein the second glass sheet has a surface compressive stress between about 250 MPa and about 900 MPa.

Aspect (52) of the present disclosure is directed to the illumination vehicle assembly of any of the preceding aspects, wherein the second glass sheet has a surface compressive stress between about 250 MPa and about 350 MPa, and the compressive stress has a DOL greater than about 20μm.

Aspect (53) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the surface of the second glass sheet opposite the intermediate layer is acid etched.

Aspect (54) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the intermediate layer comprises a single polymeric sheet, a multilayer polymeric sheet, or a composite polymeric sheet.

Aspect (55) is the lighting vehicle component of any of the preceding aspects, wherein the intermediate layer comprises a material selected from the group consisting of polyvinyl butyral (PVB), polycarbonate, ethylene vinyl acetate (EVA), A material of the group consisting of thermoplastic polyurethane (TPU), ionic polymers, thermoplastic materials, and combinations thereof.

Aspect (56) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the polymeric intermediate layer has a thickness of between about 0.4 and about 1.2 mm.

Aspect (57) of the present disclosure is the illumination vehicle assembly of any of the preceding aspects, wherein the light guide plate is a single body.

The aspect of the present disclosure (58) is the lighting vehicle assembly of any of the preceding aspects, wherein the first glass sheet, the intermediate layer, and the second glass sheet constitute a glass laminate, and the glass laminate The area is greater than 1m ² .

Aspect of the present disclosed (59) based on the lighting assembly of the vehicle in any of the preceding aspects of a person, wherein the third sheet of glass comprising: SiO between about 70 mole% to about 85 mole% of _2, from about 0 From about 2 to about 5 moles of Al ₂ O ₃ , from about 0 mole % to about 5 mole % of B ₂ O ₃ , from about 0 mole % to about 10 mole % Na ₂ O, from about 0 mole % to about 12 mole % K ₂ O, from about 0 mole % to about 4 mole % ZnO, from about 3 mole % to about 12 mole % Between MgO, from about 0 mole % to about 5 mole % CaO, between about 0 mole % to about 3 mole % SrO, between about 0 mole % to about 3 mole % BaO, and about 0.01 mole% to about 0.5 mole% of SnO ₂ .

Aspect (60) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet comprises: greater than about 80 mole % SiO ₂ , from about 0 mole % to about 0.5 mole Between the ear % Al ₂ O ₃ , between about 0 mol % to about 0.5 mol % B ₂ O ₃ , about 0 mol % to about 0.5 mol % Na ₂ O, about 8 mo Between 0% to about 11% by mole of K ₂ O, between about 0.01% by mole and about 4% by mole of ZnO, between about 6% by mole and about 10% by mole of MgO, about 0% CaO between about 0% to about 0.5% by mole, SrO between about 0% by mole and about 0.5% by mole, BaO between about 0% by mole and about 0.5% by mole, and about 0.01 mole. % to about 0.11 mol% of SnO ₂ .

Aspect (61) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet is substantially free of Al ₂ O ₃ and B ₂ O ₃ and comprises: greater than about 80 5% by mole of SiO ₂ , from about 0 mole % to about 0.5 mole % of Na ₂ O, from about 8 mole % to about 11 mole % of K ₂ O, from about 0.01 mole % to about 4 between mole% of ZnO, MgO between about 6 mole percent to about 10 mole percent, and SnO ₂ between about 0.01 mole% to about 0.11% by mole.

Aspect (62) of the present disclosure is directed to an illuminated vehicle assembly of aspect (61) wherein the third glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof.

Aspect (63) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet comprises a potassium citrate composition free of alumina, and a potassium citrate composition free of alumina The composition comprises: greater than about 80 mole % SiO ₂ , between about 8 mole % to about 11 mole % K ₂ O, between about 0.01 mole % to about 4 mole % ZnO, about 6 mol% to about 10 mol% of MgO, and about 0.01 mol% to about 0.11 mol% of SnO ₂ .

Aspect (64) of the present disclosure is directed to an illuminated vehicle assembly of aspect (63) wherein the third glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof.

The present disclosed aspects (65) based on the lighting assembly of the vehicle in any of the preceding aspects of a person, wherein the third sheet of glass comprising: SiO between about 72.82 mole% to about 82.03 mole% of _2, from about 0 From about ₂ to about 4.8 mole % of Al ₂ O ₃ , from about 0 mole % to about 2.77 mole % of B ₂ O ₃ , from about 0 mole % to about 9.28 mole % Na ₂ O, from about 0.58 mole % to about 10.58 mole % K ₂ O, from about 0 mole % to about 2.93 mole % ZnO, from about 3.1 mole % to about 10.58 mole % Between MgO, between about 0 mol% to about 4.82 mol% CaO, between about 0 mol% to about 1.59 mol% SrO, between about 0 mol% to about 3 mol% BaO, and about 0.08 mol% to about 0.15 mol% of SnO ₂ .

Aspect (66) of the present disclosure is directed to an illumination vehicle assembly of aspect (65) wherein the third glass sheet is substantially free of Al ₂ O ₃ , B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO. And its combination.

Aspect (67) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a color shift of <0.008.

Aspect (68) of the present disclosure is the illumination vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a color shift of <0.005.

Aspect (69) of the present disclosure is directed to the illumination vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a strain temperature between about 512 ° C and 653 ° C.

Aspect (70) of the present disclosure is directed to an illumination vehicle assembly of any of the preceding aspects, wherein the third glass sheet has an annealing temperature between about 564 ° C and 721 ° C.

Aspect (71) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a softening temperature between about 795 ° C and 1013 ° C.

Aspect (72) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a CTE of from about 64 x 10-7 / °C to about 77 x 10-7 / °C. between.

Aspect (73) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a density between about 2.34 gm/cc@20C to about 2.56 gm/cc@20C. .

Aspect (74) of the present disclosure is the illumination vehicle assembly of any of the preceding aspects, wherein the third glass sheet has a thickness between about 0.2 mm and about 8 mm.

Aspect (75) of the present disclosure is the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet comprises less than 1 ppm of Co, Ni, and Cr, each.

Aspect (76) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the concentration of Fe in the third glass sheet is < about 20 ppm.

Aspect (77) of the present disclosure is the illumination vehicle assembly of any of the preceding aspects, wherein the concentration of Fe in the third glass sheet is < about 10 ppm.

Aspect (78) of the present disclosure relates to an illumination vehicle assembly of any of the preceding aspects, wherein for a third glass sheet, a transmittance of 450 nm having a length of at least 500 mm is greater than or equal to 85% and a length of at least 500 mm The transmittance of 550 nm is greater than or equal to 90%, or the transmittance of 630 nm having a length of at least 500 mm is greater than or equal to 85%, and combinations thereof.

Aspect (79) of the present disclosure relates to a glass article of aspect (9) wherein the glass comprises between 0.1 mol% and not more than about 3.0 mol% of ZnO, TiO ₂ , V ₂ O ₃ , Nb ₂ O _{5, MnO, ZrO 2, As} 2 O 3, SnO 2, MoO 3, Sb 2 O 3, and CeO _2, one or a combination of any of who.

Aspect (80) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet is substantially free of Al ₂ O ₃ and B ₂ O ₃ and comprises greater than about 80 moles % SiO ₂ , where the color shift of the glass is <0.005.

Aspect (81) of the present disclosure is directed to a lighting vehicle assembly of aspect (80) wherein the third glass sheet comprises: between about 8 moles and about 11 moles of K ₂ O, about 0.01 moles. between about 4% ZnO mole percent, MgO between about 6 mole percent to about 10 mole percent, SnO between about 0.01 and about 0.11 mole% to ₂ mole%.

Aspect (82) of the present disclosure is directed to the lighting vehicle assembly of any of the preceding aspects, wherein the third glass sheet is substantially free of Al ₂ O ₃ , B ₂ O ₃ , Na ₂ O, CaO, SrO And BaO, and wherein the color shift of the glass is <0.005.

Aspect (83) of the present disclosure is directed to an illumination vehicle assembly of aspect (82) wherein the third glass sheet comprises greater than about 80 mole % SiO ₂ .

Aspect (84) of the present disclosure is directed to a lighting vehicle assembly of aspect (82) wherein the third glass sheet comprises: between about 8 moles and about 11 moles of K ₂ O, about 0.01 moles. between about 4% ZnO mole percent, MgO between about 6 mole percent to about 10 mole percent, SnO between about 0.01 and about 0.11 mole% to ₂ mole%.

Aspect (85) of the present disclosure is directed to an illumination vehicle assembly of aspect (22), further comprising a delivery system configured to move a third glass sheet, wherein the delivery system is capable of moving the third glass sheet without moving the first And a second glass sheet.

Aspect (86) of the present disclosure relates to an illumination vehicle assembly of aspect (85), wherein the delivery system includes a guide configured to guide in a direction substantially parallel to an interior surface of the second glass sheet Introduce the third glass sheet.

Aspect (87) of the present disclosure is directed to an illuminated vehicle assembly of aspect (86) wherein the guide member is a frame that surrounds at least a portion of the perimeter of the third sheet of glass.

Aspect (88) of the present disclosure is directed to an illuminated vehicle assembly of aspect (87) wherein the third sheet of glass can slide within the frame.

Aspect (89) of the present disclosure is directed to the lighting vehicle assembly of aspect (87), wherein the frame is coupled to the motor, the motor being configured to move the frame between at least two states including a closed state and an open state, wherein In the closed state, the third glass sheet is adjacent to the second glass sheet and faces the second glass sheet, wherein in the open state, the third glass sheet is in the third glass sheet and is not surfaced. The position of the main part of the second glass sheet.

Aspect (90) of the present disclosure relates to an illuminated vehicle assembly of aspect (86), wherein the guide is a roller system configured to be coupled to at least one roller coupled to the third glass sheet relative to The first and second glass sheets move the third glass sheet.

Aspect (91) of the present disclosure relates to a vehicle comprising: a body defining an interior and an opening communicating with the interior; a complex curved laminate disposed in the opening, the laminate comprising: a first curved glass substrate, comprising a first major surface, a second major surface opposite the first major surface, and a first thickness defined as a distance between the first major surface and the second major surface; a second curved glass substrate comprising a third major surface, a fourth major surface opposite to the third major surface, and a second thickness defined as a distance between the third major surface and the fourth major surface; the intermediate layer disposed on the first curved glass substrate and the second curved glass substrate And adjacent to the second major surface and the third major surface; the third glass substrate comprising a fifth major surface, a sixth major surface opposite the fifth major surface, and a fifth and sixth major surface An edge, a fifth major surface facing the fourth major surface of the second curved glass substrate; and a light source optically coupled to the edge, wherein the third glass substrate is a light guide for the light emitted by the light source.

Aspect (92) of the present disclosure relates to a vehicle of aspect (91) wherein the third glass substrate is movable relative to the complex curved laminate.

Aspect (93) of the present disclosure is directed to a vehicle of aspect (92) wherein the third glass substrate is configured to move between at least two states, the two states including a closed state and an open state, and in the closed state, The fifth major surface is adjacent to a main portion of the fourth major surface of the second curved glass substrate and faces a major portion of the fourth major surface of the second curved glass substrate, and in the open state, the fifth major surface is not Adjacent to a main portion of the fourth major surface of the second curved glass substrate, and not facing a major portion of the fourth major surface of the second curved glass substrate.

It should be understood that the various disclosed embodiments may be described in the specific features, elements, or steps described in the particular embodiments. It is also to be understood that the particular features, elements, or steps may be described in a particular embodiment, and may be interchanged or combined with alternative embodiments of various combinations or arrangements not illustrated.

It is also to be understood that the terms "the", "an" or "an" are used to mean "at least one" and are not limited to "the one" unless the <RTIgt; Thus, for example, reference to "a" or "an" Similarly, "plural" or "array" is intended to mean "more than one." Thus, "plurality of droplets" includes two or more such droplets (eg, three or more such droplets, etc.), while a "ring array" contains two or more such droplets (eg, , three or more such rings, etc.).

The scope of the disclosure may be from "about" a particular value and/or to "about" another particular value. When such a range is expressed, the examples include from a particular value and/or to another particular value. Similarly, when values are expressed in an approximate manner using the preamble "about," it will be appreciated that a particular value will form another aspect. It will be further appreciated that each endpoint of the range is clearly related to the other endpoint and is independent of the other endpoint.

The terms "substantially", "substantially", and variations of the terms used herein are intended to indicate that the described feature is equal to or approximately equal to a value or description. For example, a "substantially flat" surface is intended to mean a planar or nearly planar surface. Moreover, as defined above, "substantially similar" is intended to mean that the two values are equal or approximately equal. In some embodiments, "substantially similar" may mean that the value difference between each other is within about 10%, such as the value difference between each other is within about 5%, or the value difference between each other is within about 2%.

It will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the invention.

100‧‧‧ Vehicles

110‧‧‧ front components

120‧‧‧ rear components

130‧‧‧Front side window

140‧‧‧back side window

150‧‧‧windshield

160‧‧‧ Rear window

180‧‧‧Car roof

185‧‧‧ openings

190‧‧‧ Skylight

300‧‧‧Lamination

300A‧‧‧Lamination

310‧‧‧First curved glass substrate

312‧‧‧ first major surface

314‧‧‧Second major surface

316‧‧‧First thickness

318‧‧‧First sag depth

320‧‧‧Second curved glass substrate

322‧‧‧ Third major surface

324‧‧‧ fourth major surface

326‧‧‧second thickness

328‧‧‧Second sag depth

330‧‧‧Intermediate

410‧‧‧ first major surface

430‧‧‧ first edge

440‧‧‧ second edge

500‧‧‧LGP

Edge of 510‧‧

520‧‧‧ inner surface

530‧‧‧Outer surface

550‧‧‧Light source

600‧‧‧LGP

Edge of 610‧‧

615‧‧‧ edge

650‧‧‧Light source

660‧‧‧Light source

700‧‧‧LGP

Edge of 710‧‧

750‧‧‧Light emitting fiber

755‧‧‧circular surface

760‧‧‧Light source

800‧‧‧LGP

Edge of 810‧‧

820‧‧‧ edge

850‧‧‧Light source

860‧‧‧ reflector

865‧‧‧Reflective surface

900‧‧‧LGP

930‧‧‧ outer surface

960‧‧‧flat reflector

1000‧‧‧Lighting glazing unit

1010‧‧‧First glass sheet

1020‧‧‧Intermediate

1030‧‧‧Second glass sheet

1031‧‧‧ inner surface

1340‧‧‧ Third glass sheet

1041‧‧‧Outer surface

1050‧‧‧Frame or bracket

1060‧‧‧ gap

1 illustrates an exemplary vehicle having various components, which may include automotive glazing, in accordance with certain embodiments of the present disclosure;

Figure 2 is an illustration of a plan view of an embodiment of a roof with a sunroof;

3A is a side view of a shaped laminate in accordance with one or more embodiments;

3B is a side view of a shaped laminate in accordance with one or more embodiments;

Figure 4 is an illustration of an exemplary embodiment of a light guide plate;

5A and 5B are illustrations of side and plan views illustrating an embodiment of a light guide plate having a light source;

6A and 6B are illustrations of side and plan views illustrating an embodiment of a light guide plate having a light source;

7A and 7B are illustrations of side and plan views illustrating an embodiment of a light guiding plate having light-diffusing fibers as a light source;

8A and 8B are illustrations of side and plan views illustrating an embodiment of a light guide having a light source and an edge reflector;

9A and 9B are illustrations of side and isometric views illustrating an embodiment of a light guide having a light source and a planar reflector;

10A through 10C are pictorial illustrations of side views illustrating an embodiment of a retractable light guide.

Domestic deposit information (please note in the order of the depository, date, number)
no

Foreign deposit information (please note in the order of country, organization, date, number)
no

Claims (30)

A lighting vehicle assembly comprising: a first glass sheet of the exterior; a second glass sheet inside; An intermediate layer disposed between the first glass sheet and the second glass sheet; a third glass sheet comprising an inner surface, an outer surface opposite the inner surface, and an edge between the inner surface and the outer surface, the outer surface facing an interior of the second glass sheet a surface, the inner surface of the second glass sheet is opposite to a side of the second glass sheet on which the intermediate layer is disposed; a light source optically coupled to the edge, Wherein the third glass sheet is a light guide plate for the light emitted by the light source. The lighting vehicle assembly of claim 1, wherein the vehicle component is an automotive glazing comprising a windshield, a rear window, a side window, a skylight, a transparent sunroof, an interior roof panel, or an exterior panel All or a portion of the vehicle component is a vehicle interior panel that includes an instrument panel, an instrument panel, a center console, a steering wheel, a side door, or all or a portion of a video or infotainment panel. The lighting vehicle assembly of claim 1 further comprising an edge reflector disposed on at least a portion of the edge of the third glass layer. The lighting vehicle assembly of claim 3, wherein the edge reflector is configured to reflect light emitted from the light source to enhance light output from the inner surface or the outer surface of the third glass sheet. The lighting vehicle assembly of claim 1 further comprising a planar reflector disposed on the outer surface of the third glass sheet. The lighting vehicle assembly of claim 5, wherein the planar reflector is configured to reflect light emitted from the light source to enhance light output from the inner surface of the third glass sheet. The lighting vehicle assembly of claim 1, wherein the third glass sheet has a low light loss. The lighting vehicle assembly of claim 1, wherein the third glass sheet is a melt drawn glass sheet. The lighting vehicle assembly of claim 1, wherein the third glass sheet is chemically strengthened. The lighting vehicle assembly of claim 1, wherein the light source comprises a light emitting diode (LED), a laser, or a light diffusing fiber. The lighting vehicle assembly of claim 1, wherein the third glass layer is movable independently of the first and second glass sheets. The lighting vehicle assembly of claim 11 wherein the third layer of glass is retractable in a direction substantially parallel to the interior surface of the second sheet of glass. The lighting vehicle assembly of claim 1 further comprising a light extraction feature located on or in at least one of the inner surface and the outer surface of the light guide. The lighting vehicle assembly of claim 13 wherein the light extraction features are arranged to enhance uniformity of light output across the inner or outer surface of the light guide. The lighting vehicle assembly of claim 14, wherein the light extraction feature is arranged to enhance uniformity of light output over a continuous surface of the light guide, the continuous surface being the inner surface or the outer surface, or Wherein the light extraction features are arranged to enhance uniformity of light output across the inner surface of the light guide panel or discrete regions of the outer surface. The lighting vehicle assembly of claim 1, wherein the third glass sheet comprises a core glass layer, a first cladding layer disposed on one side of the core glass layer, and a core glass layer disposed on the core glass layer a second cladding layer on the other side, The core glass layer is fused with the first and second cladding glass layers. The illuminating vehicle assembly of claim 16, wherein a refractive index of the core glass layer is different from a refractive index of the first and second cladding layers. The lighting vehicle component of claim 17, wherein the core glass layer is a light guiding layer based on a difference between the refractive index of the core glass layer and the refractive indices of the first and second glass layers. The illuminating vehicle assembly of claim 17, wherein the core glass layer is combined with the first and second glass layers as the refractive index based on the core glass layer, the refraction of the first and second glass layers a light guiding layer having a refractive index of an air around the third glass sheet. The lighting vehicle assembly of claim 1, wherein the third glass sheet comprises: between about 70 moles and about 85 moles of SiO ₂ , between about 0 mole % and about 5 mole % Al ₂ O ₃ , from about 0 mole % to about 5 mole % B ₂ O ₃ , from about 0 mole % to about 10 mole % of Na ₂ O, about 0 mole % to about Between 12 moles of K ₂ O, between about 0 mole % to about 4 mole % of ZnO, between about 3 mole % to about 12 mole % of MgO, about 0 mole % to about CaO between 5 mole %, SrO between about 0 mole % to about 3 mole %, BaO between about 0 mole % to about 3 mole %, and about 0.01 mole % to about 0.5 Mox% between SnO ₂ . The lighting vehicle assembly of claim 1, wherein the third glass sheet is substantially free of Al ₂ O ₃ and B ₂ O ₃ and comprises: greater than about 80 mol % SiO ₂ , about 0 mol % To about 0.5 mole % of Na ₂ O, between about 8 moles and about 11 mole % of K ₂ O, between about 0.01 moles and about 4 moles of ZnO, about 6 moles From about 0% to about 10% by mole of MgO, and from about 0.01% by mole to about 0.11% by mole of SnO ₂ . The lighting vehicle assembly of claim 21, wherein the third glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof. The lighting vehicle assembly of claim 1, wherein the third glass sheet comprises an alumina-free potassium niobate composition, the alumina-free potassium niobate composition comprising: greater than about 80% by mole SiO ₂ , between about 8 moles and about 11 mole % of K ₂ O, between about 0.01 moles and about 4 moles of ZnO, from about 6 mole % to about 10 mole % Between MgO, and between about 0.01 mol% to about 0.11 mol% of SnO ₂ . The lighting vehicle assembly of claim 23, wherein the third glass sheet is substantially free of B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof. The lighting assembly of the vehicle of a request, wherein the third sheet of glass comprising: SiO between about 72.82 mole% to about 82.03 mole% of _2, from about 0 mole% to between about 4.8 mole% Al ₂ O ₃ , about 0 mole % to about 2.77 mole % of B ₂ O ₃ , about 0 mole % to about 9.28 mole % of Na ₂ O, about 0.58 mole % to about 10.58 mole % K ₂ O, between about 0 mole % to about 2.93 mole % of ZnO, about 3.1 mole % to about 10.58 mole % of MgO, about 0 mole % to about CaO between 4.82 mole %, SrO between about 0 mole % to about 1.59 mole %, BaO between about 0 mole % to about 3 mole %, and about 0.08 mole % to about 0.15 Mox% between SnO ₂ . The lighting vehicle assembly of claim 25, wherein the third glass sheet is substantially free of Al ₂ O ₃ , B ₂ O ₃ , Na ₂ O, CaO, SrO, or BaO, and combinations thereof. The lighting vehicle assembly of claim 1 wherein the third glass sheet has a color shift of less than 0.008 or less than 0.005. The illuminating vehicle assembly of claim 1, wherein for the third glass sheet, a transmittance of 450 nm having a length of at least 500 mm is greater than or equal to 85%, and a transmittance of 550 nm having a length of at least 500 mm is greater than or equal to 90%, Or a transmittance of 630 nm of at least 500 mm in length greater than or equal to 85%, and combinations thereof. A vehicle comprising: a body defining an interior and an opening in communication with the interior; A complex curved laminate disposed in the opening, the laminate comprising: a first curved glass substrate comprising a first major surface, a second major surface opposite the first major surface, and a first surface defining the distance between the first major surface and the second major surface thickness; a second curved glass substrate comprising a third major surface, a fourth major surface opposite the third major surface, and a second defining the distance between the third major surface and the fourth major surface Thickness; An intermediate layer disposed between the first curved glass substrate and the second curved glass substrate and adjacent to the second major surface and the third major surface; a third glass substrate comprising a fifth major surface, a sixth major surface opposite the fifth major surface, and an edge between the fifth and sixth major surfaces, the fifth major surface facing the The fourth major surface of the second curved glass substrate; a light source optically coupled to the edge, The third glass substrate is a light guide plate for the light emitted by the light source. The vehicle of claim 29, wherein the third glass substrate is movable relative to the complex curved laminate, the third glass substrate configured to move between at least two states, the two states comprising: a closed state, wherein the fifth major surface is adjacent to a main portion of the fourth major surface of the second curved glass substrate and faces the main portion of the fourth major surface of the second curved glass substrate, as well as An open state, wherein the fifth major surface is not adjacent to a major portion of the fourth major surface of the second curved glass substrate and does not face the fourth major surface of the second curved glass substrate main part.