Glass plate for display device, plate glass for display device and production process thereof

Patent metadata

Field	Value
Publication number	US-9060435-B2
Application number	US-201313827860-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Oct 20, 2009
Publication date	Jun 16, 2015
Grant date	Jun 16, 2015

Abstract

A process for producing a plate glass for a display device having a thickness of at most 1.5 mm by a float process, wherein the plate glass comprises, as represented by mole percentage based on the following oxides, from 67 to 75% of SiO2, from 0 to 4% of Al2O3, from 7 to 15% of Na2O, from 1 to 9% of K2O, from 6 to 14% of MgO and from 0 to 1.5% of ZrO2, has a total content of SiO2 and Al2O3 of from 71 to 75%, has a total content Na2O+K2O of Na2O and K2O of from 12 to 20%, and has a content of CaO of less than 1% if contained.

First claim

What is claimed is:

1. A display device, comprising:
a display, and
a cover glass,
wherein the cover glass has a thickness of at most 1 mm;
the cover glass comprises, by mole percentage based on the following oxides:
from 67 to 75% of SiO 2 ,
from 0 to 4% of Al 2 O 3 ,
from 7 to 15% of Na 2 O,
from 1 to 9% of K 2 O,
from 6 to 14% of MgO, and
from 0 to 0.7% of ZrO 2 ,

a total content of SiO 2 and Al 2 O 3 in the cover glass is from 71 to 75%;
a total conten…

Assignees

• Asahi Glass Co Ltd

Inventors

• Akiba shusaku
• Hayashi Kazutaka

Classifications

• C03C3/085

  Chemistry & Metallurgy · mapped topic

• H05K5/03 Primary

  Electricity · mapped topic

• C03C3/087 Primary

  Chemistry & Metallurgy · mapped topic

• C03C3/078

  Chemistry & Metallurgy · mapped topic