| 摘要 |
<p>A lead-free glass material for sealing organic EL elements is provided with which satisfactory sealing quality is obtained through laser sealing without requiring the addition of a metallic powder. The glass material has excellent low-temperature softening properties, excellent melt stability, and a low coefficient of thermal expansion and is sufficiently inhibited from thermally adversely affecting the organic EL elements, and the sealing conditions need not to be strictly managed or controlled. The glass material can attain high sealing properties and high sealing strength in high yield. The lead-free glass material for sealing organic EL elements has a glass composition which comprises, in terms of mol%, 30-60% V 2 O 5 , 5-20% ZnO, 5-20% BaO, 15-40% TeO 2 , 0-7% Nb 2 O 5 , 0-7% Al 2 O 3 , 0-5% SiO 2 , 0-5% MgO, 0-5% Sb 2 O 3 , 0-4% CuO, and 0-4% SnO and in which Nb 2 O 5 +Al 2 O 3 is 0.5-10%, SiO 2 +MgO+Sb 2 O 3 is 0-5%, and CuO+SnO is 0-4%.</p> |
