| 摘要 |
<p>A plasma display comprising a pair of substrate glasses, discharge electrode disposed on the inner surface of the substrate glass, and a phosphor disposed between the glasses and emitting light upon discharge of the electrode. The substrate glass comprises by weight SiO2: 50 to 65 %, Al2O3: 2 to 15 %, MgO: 0 to 4 %, CaO: 0 to 2.9 %, SrO: 2 to 13 %, BaO: 0.5 to 13 %, MgO + CaO + SrO + BaO: 10 to 27 %, Li2O: 0 to 1 %, Na2O: 2 to 10 %, K2O: 2 to 13 %, Li2O + Na2O + K2O: 7 to 15 %, ZrO2: 1 to 9 %, TiO2: 0 to 5 %, Sb2O3: 0 to 1 %, and As2O3: 0 to 1 %. It causes little thermal shrinkage even when heat treated at a temperature of 570 °C or above and has a coefficient of thermal expansion of 75 to 95 x 10-7/ °C and a higher volume resistivity than and superior chemical resistance to soda lime glass.</p> |
