| 摘要 |
PURPOSE: An information display system including an LED panel is provided to substitute a sub driver IC for a broken main driver IC by doubly designing a driver IC with the main driver IC and the sub driver IC. CONSTITUTION: A main driving unit(20) includes a plurality of main driver ICs. A sub driving unit(30) includes a plurality of sub driver ICs. A controller(50) detects the broken main driver IC by periodically polling the main driver ICs. The controller activates the sub driver IC as the substitute for the broken main driver IC. [Reference numerals] (20) Main driving IC; (30) Sub driving IC; (40) Power supply unit; (50) Controller
|
