| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrode-formed glass substrate capable of suppressing warpage without lowering the strength of a front substrate of a plasma display device. SOLUTION: Electrodes formed on a glass substrate are covered with a lead-free glass comprising, in terms of mass percentage, B<SB>2</SB>O<SB>3</SB>of 30-50%, SiO<SB>2</SB>of more than 25% and at most 35%, ZnO of 10-25%, Li<SB>2</SB>O and/or Na<SB>2</SB>O and K<SB>2</SB>O of 7-19% in total, Al<SB>2</SB>O<SB>3</SB>of 0-5%, and MgO+CaO+SrO+BaO of 0-5%, and when the molar fractions of Li<SB>2</SB>O, Na<SB>2</SB>O and K<SB>2</SB>O are represented by l, n and k, respectively, l is 0.025 or less and l+n+k is 0.07-0.17. COPYRIGHT: (C)2009,JPO&INPIT
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