Electrical display apparatus incorpolrating electroluminescent and gas discharge devices

Claim 1

AN ELECTRICAL DISPLAY PANEL, COMPRISING: A TRANSPARENT ELECTRICAL INSULATING SUPPORT; A PLURALITY OF SPACED, SUBSTANTIALLY PARALLEL, TRANSPARENT, ELECTRICAL CONDUCTING STRIP ELECTRODES DISPOSED ON ONE FACE OF SAID MEMBER; A LAYER OF ELECTROLUMINESCENT MATERIAL DISPOSED ON SAID ONE FACE OVER SAID ELECTRODES; A PLURALITY OF PLATE ELECTRODES ARRANGED IN ROWS EXTENDING AT AN ANGLE TO SAID STRIP ELECTRODES, THE PLATE ELECTRODES OF THE RESPECTIVE ROWS BEING INDIVIDUALLY ALIGNED WITH RESPECTIVE STRIP ELECTRODES IN POSITIONS ELECTRICALLY CONTACTING SAID ELECTROLUMINESCENT MATERIAL; A GAS DISCHARGE TUBE AT EACH ROW OF PLATE ELECTRODES INCLUDING A MAIN ELECTRODES SPACED A PREDETERMINED DISTANCE FROM SAID PLATE ELECTRODES AND AN IONIZING ELEC-