| 摘要 |
PURPOSE: A glass for a back light lamp is provided to maximize efficiency of the lamp under situation using a high voltage and ultra-high frequency by minimizing dielectric loss energy of the glass and to minimize heat applied to an electrode. CONSTITUTION: A glass for a back light lamp comprises SiO2 65~75wt%, B2O3 16~19wt%, P2O5 0.1~0.8wt%, BaO 0.5~3.0wt%, SrO 0.1~5wt%, CaO0~3wt%, MgO 0~3wt%, CeO2 0.005~1wt%, Fe2O3 0.005~1wt%, TiO2 0.005~1.5wt%, Al2O3 0.5~5wt%, Li2O 0~5wt%, Na2O 4~6wt%, K2O 2.5~4.0wt%, Sb2O3 0~1wt%, and TiO2+P2O5. The TiO2+P2O5 is limited less than 2wt%. A large amount of SiO2+B2O3 is used in order to minimize the dielectric loss energy. The dielectric constant is minimized using traces of TiO2 component having a high dielectric constant. |
