ANODE SUBSTRATES FOR MULTI-DIGIT TYPE FLUORESCENT DISPLAY TUBES

The anode substrate for use in a multi-digit type fluorescent tube comprises an insulator substrate printed with conductors for electrically interconnecting corresponding segment electrodes, an insulator substrate overlying the printed conductors and provided with a plurality of perforations above the printed conductors, a plurality of segment electrodes formed on the insulator film at the positions of the perforations, the electrodes including integral connectors extending through the perforations and respectively connected to the printed conductors, phosphor films applied onto respective segment electrodes, the segment electrodes being arranged in a predetermined pattern to display predetermined letters, and a protective film overlying the insulator film and provided with a plurality of the segment electrodes.