Electroluminescent printed circuit display

Claim 1

AN ELECTROLUMINESCENT DEVICE ADAPTED TO BE COUPLED TO EXTERNAL ELECTRICAL CIRCUIT ELEMENTS FOR DISPLAYING THE OPERATIVE CONDITION OF SAID ELEMENTS, COMPRISING: (A) A TRANSLUCENT ELECTRICALLY-CONDUCTIVE ELECTRODE LAYER; (B) AN ELECTROLUMINESCENT DIELECTRIC-PHOSPHOR LAYER UNDERLYING SAID TRANSLUCENT ELECTRICALLY-CONDUCTIVE ELECTRODE LAYER; (C) PRINTED CIRCUIT ELECTRODE MEANS UNDERLYING SAID ELECTROLUMINESCENT DIELECTRIC-PHOSPHOR LAYER, SAID MEANS INCLUDING A DIELECTRIC MATERIAL LAYER AND A PRINTED CIRCUIT PATTERN CARRIED BY SAID DIELECTRIC MATERIAL LAYER; SAID PRINTED CIRCUIT PATTERN INCLUDING A PLURALITY OF ELECTRICALLY CONDUCTIVE MEMBERS SPACED IN AN ELECTRICALLY-INSULATED DISPOSITION ONE FROM THE OTHER, AND ELECTRICAL LEADS OPERATIVELY COUPLED TO EACH MEMBER FOR PERMITTING INDEPENDENT ENERGIZATION OF EACH MEMBER, SAID LEADS EXTENDING EXTERNALLY OF SAID DIELECTRIC-MATERIAL LAYER FOR ENABLING SAID MEMBERS TO BE ELECTRICALLY COUPLED TO SAID EXTERNAL ELECTRICAL CIRCUIT ELEMENTS WHEREBY AN ELECTRICAL CIRCUIT CAN BE COMPLETED THROUGH SAID ELEMENTS AND SAID PRINTED CICUIT PATTERN FOR ENERGIZING SAID PATTERN MEMBERS, (D) A SOURCE OF PULSATING VOLTAGE, AND (E) MEANS ELECTRICALLY COUPLING ONE POLE OF SAID SOURCE TO AT LEAST ONE OF SAID CONDUCTIVE MEMBERS AND THE OTHER POLE TO SAID ELECTRICALLY-CONDUCTIVE ELECTRODE LAYER FOR PRODUCING A LUMINESCENCE HAVING A PATTERN DEPENDENT UPON THE OPERATIVE CONDITION OF SAID EXTERNALLY-COUPLED CIRCUIT ELEMENTS.