Method of driving electron-emitting device, electron source, and image-forming apparatus, driving circuit for electron source and image-forming apparatus, electron source and image-forming apparatus including the driving circuit, and method of manufacturing image-forming apparatus

摘要

Disclosed are methods for driving an electron-emitting device, an electron source, and an image-forming apparatus, driving circuits for an electron source and an image-forming apparatus, and an electron source and an image-forming apparatus, with each of which electron emission is effectively halted. A voltage (Vg-Vc)>0 is applied to an electron-emitting device placed in a driving state in which electrons should be emitted, thereby having the electron-emitting device emit electrons. A voltage (Vg-Vc)<0 is applied to an electron-emitting device placed in a halt state in which no electrons should be emitted, thereby having the electron-emitting device halt electron emission. In this manner, an electric field that is formed between a cathode electrode and a gate electrode in the halt state becomes opposite to an electric field that is formed therebetween in the driving state, thereby easily weakening an electric field directed toward an anode electrode and effectively suppressing electron emission in the halt state.