Glass substrate and in-vehicle display device

Patent metadata

Field	Value
Publication number	US-11590844-B2
Application number	US-202015931705-A
Country	US
Kind code	B2
Filing date	May 14, 2020
Priority date	May 17, 2019
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

A glass substrate includes a pair of main surfaces including a first main surface and a second main surface opposed to the first main surface; an edge surface arranged along a direction orthogonal to the pair of main surfaces; and a connecting surface arranged between the first main surface and the edge surface. The connecting surface has a plurality of pores. A difference between a 50% particle diameter of the pores in a portion 20 μm distant from the first main surface and a 50% particle diameter in a portion 20 μm distant from the edge surface is 10 μm or less.

First claim

The invention claimed is:

1. A glass substrate comprising: a pair of main surfaces including a first main surface and a second main surface opposed to the first main surface; an edge surface arranged along a direction orthogonal to the pair of main surfaces; and a connecting surface arranged between the first main surface and the edge surface,
wherein the connecting surface has a plurality of pores, and
a difference between a 50% particle diameter of pores in a portion 20 μm distant from the first main surface and a 50% particle diameter of pores in a portion 20 μm distant from the edge surface is 10 μm or less.

2. The glass substrate according to claim 1 ,
wherein an angle made by the first main surface and the connecting surface is 40° or more and 55° or less.

3. The glass substrate according to claim 1 ,
wherein a curvature radius R of a boundary curve between the first main surface and the connecting surface is 350 μM or less.

4. The glass substrate according to claim 1 ,
wherein the plurality of pores in the connecting surface has a dispersion of a particle diameter of 5 μm or less.

5. The glass substrate according to claim 1 ,
wherein the plurality of pores has a 90% particle diameter of 10 μm or more.

6. A glass substrate with a printing layer, comprising the glass substrate according to claim 1 ,
wherein a printing layer is provided on at least a part of the first main surface and the connecting surface,
at least a part of an outer peripheral edge of the printing layer is laid on the connecting surface, and
the outer peripheral edge has a linearity of 100 μm or less.

7. A glass substrate with a functional layer, comprising the glass substrate according to claim 1 ,
wherein a functional layer is provided on at least a part of the first main surface and the connecting surface, and
a color difference ΔE between the first main surface and the connecting surface each having the functional layer is 0 or more and 10 or less.

8. A glass substrate with a functional layer, comprising the glass substrate according to claim 6 , the glass substrate comprising a second connecting surface arranged between the second main surface and the edge surface,
wherein the second connecting surface has a plurality of pores,
a difference between a 50% particle diameter of said pores in a portion 20 μm distant from the second main surface and a 50% particle diameter of said pores in a portion 20 μm distant from the edge surface is 10 μm or less,
a functional layer is provided on at least a part of the second main surface and the second connecting surface, and
a color difference ΔE between the second main surface and the second connecting surface each having the functional layer is 0 or more and 10 or less.

9. An in-vehicle display device comprising the glass substrate according to claim 1 .

10. An in-vehicle display device comprising the glass substrate with a printing layer according to claim 6 .

11. An in-vehicle display device comprising the glass substrate with a functional layer according to claim 7 .

12. An in-vehicle display device comprising the glass substrate with a functional layer according to claim 8 .

Assignees

• Agc Inc

Inventors

• Tamada Minoru
• Inoue Yasuhiro

Classifications

• C03C17/002 Primary

  for flat glass, e.g. float glass · CPC title

• B60K35/415

  Glare prevention · CPC title

• B60R1/00

  Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles · CPC title

• C03C2217/425

  consisting of a porous layer · CPC title

• C03C2217/485

  Pigments · CPC title