Lead-free glass material for organic-EL sealing, organic EL display formed using the same

摘要

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 lead-free glass material for sealing organic EL elements has a glass composition which comprises, in terms of mol %, 30-60% V2O5, 5-20% ZnO, 5-20% BaO, 15-40% TeO2, 0-7% Nb2O5, 0-7% Al2O3, 0-5% SiO2, 0-5% MgO, 0-5% Sb2O3, 0-4% CuO, and 0-4% SnO and in which Nb2O5+Al2O3 is 0.5-10%, SiO2+MgO+Sb2O3 is 0-5%, and CuO+SnO is 0-4%. The glass material has low-temperature softening properties, melt stability, and a low coefficient of thermal expansion and is inhibited from thermally adversely affecting organic EL elements The glass material can attain high sealing properties and high sealing strength in high yield.

主权项

1. A lead-free glass material for organic-EL sealing, the material comprising:
a glass composition containing, in terms of mol %, 30 to 60% V2O5, 5 to 20% ZnO, 5 to 20% BaO, 15 to 40% TeO2, 0 to 7% Nb2O5, 0 to 7% Al2O3, 0 to 5% SiO2, 0 to 5% MgO, 0 to 5% Sb2O3, 0 to 4% CuO, and 0 to 4% SnO, wherein Nb2O5+Al2O3 is 0.5 to 10%, and SiO2+MgO+Sb2O3 is 0 to 5%, and CuO+SnO is 0 to 4%, in terms of mol%.