LED智能显示屏是由微型计算机控制，以LED矩阵板作显示的系统，可用来显示各种文字及图案。该系统中的行驱动器和列驱动器均可采用高β、高速低压降的达林顿管-Intelligent LED display is controlled by a micro-computer to plate for LED matrix display systems, can be used to display various characters and designs. Line in the system