Driving circuit for a fluorescent display apparatus having fewer leads

摘要

A fluorescent display apparatus having a plurality of anodes linearly arranged and divided into consecutive several groups each containing the same number of anodes. Each of the anodes disposed in corresponding positions of the respective anode groups is electrically connected in parallel, and a control grid is provided in each of the anode groups in an opposed relation. A particular anode representing the value of an input signal is illuminated by energizing one of the anodes in the respective anode groups and one of the control grids.