Gas-discharge display device

A gas-discharge device comprising:

• a plurality of cathodes disposed on a substrate to extend in one direction in a relation parallel to and equally spaced apart from each other, said cathodes being connected to respective cathode terminals by multiphase connection;
• a plurality of barrier ribs disposed above said cathodes to extend in a direction crossing with the extending direction of said cathodes and in a relation parallel to and equally spaced apart from each other;
• a plurality of anodes disposed in a relation parallel to and equally spaced apart from each other so as to be located between said barrier ribs, said anodes being connected to respective anode terminals;
• a face plate disposed on said anodes, said face plate and said substrate defining therebetween a space which is filled with a gas and maintained gas-tight;
• and
• means for applying time-serial multiphase pulse voltages to said respective cathode terminals and for applying a pulse voltage including pulses of small width occurring at a timing corresponding to that of said multiphase pulse voltages and pulses of large width representing display information superposed on said small width pulses to each of said anode terminals.