Glass substrate, cover glass, assembly, assembly manufacturing method, in-vehicle display device, and in-vehicle display device manufacturing method

Patent metadata

Field	Value
Publication number	US-12595205-B2
Application number	US-202418426403-A
Country	US
Kind code	B2
Filing date	Jan 30, 2024
Priority date	Jul 10, 2019
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

A glass substrate includes a thin portion having a first surface and a second surface opposed to the first surface, a thick portion having a first surface and a second surface opposed to the first surface and having a sheet thickness t 3 that is larger than a sheet thickness t 2 of the thin portion, a connection portion having a first connection surface and a second connection surface, the first connection surface connecting the first surface of the thin portion to the first surface of the thick portion, the second connection surface connecting the second surface of the thin portion to the second surface of the thick portion. The first connection surface has a curvature radius of more than or equal to 400 μm.

First claim

The invention claimed is:

1 . An assembly comprising:
an uneven structure; a glass substrate that is assembled to the uneven structure; and two to four display panels, wherein the glass substrate comprises: a thin portion having a first surface and a second surface opposed to the first surface; a thick portion having a first surface and a second surface opposed to the first surface and having a sheet thickness t 3 that is larger than a sheet thickness t 2 of the thin portion; and a connection portion having a first connection surface and a second connection surface, the first connection surface connecting the first surface of the thin portion to the first surface of the thick portion, the second connection surface connecting the second surface of the thin portion to the second surface of the thick portion, wherein the uneven structure includes a recess and, in an assembled state, the glass substrate is elastically deformed such that the thin portion extends into the recess, wherein, in the assembled state, only the thin portion faces the recess, wherein at least a first of the display panels is disposed to face the thin portion, and at least a second of the display panels is disposed to face the thick portion, wherein in a state where the glass substrate is not elastically deformed, the second surface of the thin portion, the second connection surface of the connection portion, and the second surface of the thick portion lie flush with each other, and wherein the first connection surface has a curvature radius of more than or equal to 400 μm.

2 . The assembly according to claim 1 , wherein a sheet thickness t 4 of the connection portion is less than or equal to 0.5 mm.

3 . The assembly according to claim 1 , wherein the sheet thickness t 2 of the thin portion is 0.05 mm or more and 0.8 mm or less, and the sheet thickness t 3 of the thick portion is 0.5 mm or more and 2.5 mm or less.

4 . The assembly according to claim 1 , wherein the connection portion comprises an overhang part.

5 . The assembly according to claim 1 , wherein the glass substrate is a chemically strengthened glass.

6 . A method of manufacturing an assembly, the method comprising assembling the glass substrate as defined in claim 1 to an uneven structure,
wherein the thin portion of the glass substrate is elastically deformed according to a shape of the uneven structure and assembled to the uneven structure.

7 . An in-vehicle display device comprising:
an instrument cluster provided in front of a driving seat; a center information display provided in front of an area between the driving seat and a passenger seat; and the glass substrate as defined in claim 1 , wherein the instrument cluster comprises an uneven structure, wherein the thin portion of the glass substrate is assembled to the uneven structure with the thin portion elastically deformed according to a shape of the uneven structure, and wherein the thick portion of the glass substrate is assembled to the center information display.

8 . A method of manufacturing an in-vehicle display, the method comprising assembling the glass substrate as defined in claim 1 to an instrument cluster provided in front of a driving seat and a center information display provided in front of an area between the driving seat and a passenger seat,
wherein the instrument cluster comprises uneven structure,
wherein the thin portion of the glass substrate is elastically deformed according to a shape of the uneven structure and assembled to the uneven structure, and
wherein the thick portion of the glass substrate is assembled to the center information display.

Assignees

• Agc Inc

Inventors

• Kashima Izuru
• Fujiwara Yusuke

Classifications

• B32B3/30

  characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} · CPC title

• B60K35/50

  Instruments characterised by their means of attachment to or integration in the vehicle (B60K35/231 takes precedence) · CPC title

• B60K35/60

  Instruments characterised by their location or relative disposition in or on vehicles (arrangements of lighting devices on dashboards B60Q3/10) · CPC title

• B60K35/22

  Display screens · CPC title

• C03B23/023

  by bending · CPC title