Electron feed structure for flat-type luminous device

Claim 1

An electron feed structure for a flat-type luminous device including an air-tight envelope which is evacuated to a high vacuum and in which various electrodes are arranged, a display section arranged in said envelope and comprising phosphor layers adapted to emit light upon impingement of electrons thereon and anode conductors, and a selecting electrode section an accelerating electrode section for selecting and controlling an electron beam discharged from said electron feed structure to selectively impinge said electron beam on said phosphor layers of said display section, comprising: at least one electron source; and at least one electron flow guide for guiding electrons emitted from said electron source along a plane opposite to said display section; said electron flow guide comprising an inner guide electrode comprising a plurality of electrode segments separated from one another in the direction of traveling of said electrons emitted from said electron source and arranged opposite to one another to guide said electrons and an outer guide electrode formed into an integral construction or comprising a plurality of electrode segments separated from one another in the direction of traveling of said electrons, said outer guide electrode being arranged so as to interpose said inner guide electrode therebetween; said inner guide electrode and outer guide electrode having applied thereto guide voltages different from each other to guide said electrons along said electron flow guide, respectively; at least one of said electrode segments of an least one of said inner guide electrode and outer guide electrode which is positioned in proximity to a selected position of said display section having applied thereto a deflection voltage to deflect and guide said electrons from said electron feed structure to said display section.