Patent ID: RE41127

Claim:
A substrate for a flat panel display or photovoltaic device wherein said substrate is comprised of a flat, transparent glass exhibiting a linear coefficient of thermal expansion (CTE) over the temperature range 0-300° C. between 30-40×10 −7 /° C. and a strain point over 600° C., said glass consisting essentially of an aluminosilicate having a composition as calculated in weight percent on an oxide basis, of 58-70% SiO 2 , 12-22% Al 2 O 3 , 3-15% B 2 O 3 , 2-12% CaO, 0-3% SrO, 0-3% BaO, 0-8% MgO, and SrO and BaO in combination being less than 3%.