| 摘要 |
<P>PROBLEM TO BE SOLVED: To create an alkali-free glass desirable as a glass substrate for an organic EL display, especially an alkali-free glass which is resistant to thermal shrinkage in a p-Si*TFT production process and besides is excellent devitrification resistance and meltability. <P>SOLUTION: The alkali-free glass has a glass composition: (as expressed by mass% of the following oxides) 40-75% SiO<SB>2</SB>, 10-30% Al<SB>2</SB>O<SB>3</SB>, 0-13% B<SB>2</SB>O<SB>3</SB>, 0.1-10% P<SB>2</SB>O<SB>5</SB>, and 3-15% MgO+CaO+SrO+BaO, and is substantially free from alkali metal oxides. <P>COPYRIGHT: (C)2010,JPO&INPIT |
