Vehicle interior systems having a curved cover glass and a display or touch panel and methods for forming the same
Embodiments of a vehicle interior system are disclosed. In one or more embodiments, the system includes a base with a curved surface, and a display or touch panel disposed on the curved surface. The display includes a cold-bent glass substrate with a thickness of 1.5 mm or less and a first radius of curvature of 20 mm or greater, and a display module and/or touch panel attached to the glass substrate having a second radius of curvature that is within 10% of the first radius of curvature. Methods for forming such systems are also disclosed.
1 . A cover glass and frame system for a vehicle interior system comprising:
a frame comprising a first frame surface, a second frame surface opposing the first frame surface, and a frame edge with a frame thickness defined as the distance between the first frame surface and the second frame surface, a frame width defined as a first dimension of one of the first or second frame surfaces orthogonal to the frame thickness, and a frame length defined as a second dimension of one of the first or second frame surfaces orthogonal to both the frame thickness and the frame width; a frame opening extending from the first frame surface to the second frame surface and surrounded by an interior surface connecting the first frame surface and the second frame surface;
a glass substrate disposed on and attached to the first frame surface, the glass substrate comprising a first major surface, a second major surface opposing the first major surface and a minor surface connecting the first major surface and the second major surface with a thickness defined as a distance between the first major surface and the second major surface, a width defined as a first dimension of one of the first or second major surfaces orthogonal to the thickness, and a length defined as a second dimension of one of the first or second major surfaces orthogonal to both the thickness and the width, and wherein the width of the glass substrate is equal to or greater than the frame width, the length of the glass substrate is equal to or greater than the frame length, and the thickness is 1.5 mm or less,
a display module disposed in the frame opening within the interior surface, wherein the display module has a display width that is less than the frame width or a display length that is less than the frame length, and
an optically clear adhesive disposed between the display module and the glass substrate,
wherein the second major surface of the glass substrate comprises a first radius of curvature of 20 mm or greater,
wherein the display comprises an organic light-emitting diode (OLED) display and comprises a second radius of curvature that is within 10% of the first radius of curvature; and
wherein the minor surface comprises an edge strength of about 200 MPa or greater, as tested by four-point bending test.
2 . The cover glass and frame system of claim 1 , wherein one of or both the first frame surface and the glass substrate comprise a radius of curvature in a range from about 20 mm to about 1500 mm.
3 . The cover glass and frame system of claim 1 , wherein the first frame surface has a frame radius of curvature of in a range from about 20 mm to about 1500 mm, and the glass substrate has a first radius of curvature that within 10% of the frame radius of curvature.
4 . The cover glass and frame system of claim 1 , wherein the frame width is in a range from about 5 cm to about 250 cm.
5 . The cover glass and frame system of claim 1 , wherein the frame length is in a range from about 5 cm to about 250 cm.
6 . The cover glass and frame system of claim 1 , wherein the frame width is 0.9 times the width of the glass substrate or less.
7 . The cover glass and frame system of claim 1 , wherein the frame length is 0.9 times the length of the glass substrate or less.
8 . The cover glass and frame system of claim 1 , wherein the frame width is about 1.2 times the display width or greater.
9 . The cover glass and frame system of claim 1 , wherein the frame length is about 1.2 times the display length or greater.
10 . The cover glass and frame system of claim 1 , wherein the interior surface provides mechanical alignment for positioning the display module within the frame opening.
11 . The cover glass and frame system of claim 1 , wherein the interior surface and the first frame surface comprise an opaque border surrounding the display module.
12 . The cover glass and frame system of claim 1 , further comprising an air gap between the display module and the glass substrate.
13 . The cover glass and frame system of claim 1 , wherein the frame and the glass substrate are attached to form an integral unit that experience substantially the same stresses as one another, before, during and after an impact on either one or both of the frame and the glass substrate.
14 . The cover glass and frame system of claim 13 , wherein, the maximum stress exhibited by the frame caused by an impact on a portion of the second frame surface is within 10% of the maximum stress exhibited by the glass substrate measured across a portion of the first major surface adjacent to the portion of the second frame surface.
15 . The cover glass and frame system of claim 14 , wherein the maximum stress exhibited by the glass substrate measured across the entirety of the first major surface is within 10% of the maximum stress exhibited by the frame caused by the impact.
16 . The cover glass and frame system of claim 1 , wherein, when an impacter having a mass of 6.8 kg impacts the first major surface at an impact velocity of 5.35 m/s to 6.69 m/s, the deceleration of the impacter is 120 g (g-force) or less.
17 . The cover glass and frame system of claim 16 , wherein the deceleration of the impacter is not greater than 80 g for any 3 millisecond interval over a time of impact.
18 . The cover glass and frame system of claim 1 , wherein one of or both the first major surface and the second major surface of the glass substrate comprises a surface treatment.