Gas discharge display unit - enables gas discharge in discharge space to be insensitive to anode voltage

摘要

The unit has a gas filled, gas tight envelope with a plate shaped control structure (12) dividing the envelope interior in two parts. It comprises at least one plasma electrode pref. parallel to the control structure, placed in one envelope part (discharge space), and a luminous screen electrode (acceleration anode) in the other part (post-acceleration space). The control structure consists of a matrix of row and column wires spaced at crosspoints by insulators with through holes. The plasma electrode is so placed, that a gas discharge can burn in the discharge space, while the acceleration anode is so close to adjacent wires of the control structure (control electrodes), that even a voltage of several kV in the post-acceleration space cannot trip a gas discharge.