with main electrodes provided only on one side of the discharge space

Full Title

Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP] (circuits or methods for driving PDPs G09G3/28); Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel > AC-PDPs with at least one main electrode being out of contact with the plasma > with main electrodes provided only on one side of the discharge space