GLASS SUBSTRATE FOR FLAT PANEL DISPLAY, PROCESS FOR PRODUCING THE SAME, AND DISPLAY PANEL EMPLOYING THE SAME
摘要
<p>A glass substrate for flat panel displays which is inhibited from yellowing when a silver electrode is formed on a surface of the glass substrate. The glass substrate for flat panel displays is one formed by the float process, and is characterized by having a composition comprising the following, in terms of oxide amount in mass%. SiO<SUB>2</SUB> 50-72% Al<SUB>2</SUB>O<SUB>3</SUB> 0.5-15% MgO+CaO+SrO+BaO 4-30% Na<SUB>2</SUB>O 0-10%, excluding 0% K<SUB>2</SUB>O 1-21% Li<SUB>2</SUB>O 0-1% Na<SUB>2</SUB>O+K<SUB>2</SUB>O+Li<SUB>2</SUB>O 6-25% ZrO<SUB>2</SUB> 0-10% Fe<SUB>2</SUB>O<SUB>3</SUB> 0.0725-0.15% The glass substrate is further characterized in that the average Fe<SUP>2+</SUP> content in that surface layer of the glass substrate which extends from the top to a depth of 10 µm is 0.0725% or lower in terms of Fe<SUB>2</SUB>O<SUB>3</SUB> amount.</p>
