LIGHTING DISPLAY DEVICE OF DYNAMIC DRIVING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a dot matrix lighting display device permitting to reduce the number of resisters without upsizing current limit resisters, and to construct a simple and inexpensive one for applying it to a zone display box window and a fire alarm box window of fire alarm facilities. SOLUTION: A lighting display device of dynamic driving system to control lighting of plural display lamps arranged in a matrix form by energizing control combining columnar scanning and row selection has such a configuration as display lamps in accordance with the number of control rows are connected in parallel in each scanning column, and also current limit resisters are connected in those control rows.