Patent ID: 8413466

Claim:
A method for producing a glass for a display substrate comprising the steps of: preparing glass raw materials mixed so that the glass comprises 50 to 70% of SiO 2 , 10 to 25% of Al 2 O 3 , 8.4 to 20% of B 2 O 3 , 0 to 10% of MgO, 6 to 15% of CaO, 0 to 10% of BaO, 0 to 10% of SrO, 0 to 10% of ZnO, 0 to 5% of TiO 2 , and 0 to 5% of P 2 O 5 ; electrically melting the glass raw materials in a melting furnace constructed of a high zirconia refractory; and refining, homogenizing and forming the glass melt; wherein the glass raw materials are mixed so that an alkali metal content of the resultant glass is 0.01 to 0.2% as expressed in % by mass.