LED ELECTRONIC SIGN BOARD FOR SAVING POWER BY A PIXEL LINE CAPABLE OF CONTROLLING THE SWITCHING OF POWER OF AN LED DISPLAY PANEL AND A PANEL DRIVING UNIT

摘要

PURPOSE: An LED electronic sign board for saving power by a pixel line is provided to cut off power by each pixel line unit of multiple LED modules, thereby minimizing power consumption.;CONSTITUTION: A plurality of LED modules is arranged on an LED display panel(10). A panel driving unit(20) comprises a plurality of module drivers which drives each LED module. A switching mode power supply unit(30) generates power which is necessary for operating an LED display panel and the panel driving unit. A switching mode power supply unit supplies power to an LED display panel and a panel driving unit. A black line extracting unit(70) extracts a pixel line which is processed by each LED module unit.;COPYRIGHT KIPO 2012