METHOD OF DRIVING A STRUCTURE COMPRISING A FIELD EMISSION ELECTRON SOURCE

摘要

The invention relates to a control process for a structure with field effect elements, the structure comprising a cathode (1) equipped with field effect elements, an anode (2), an extraction grid (7) and an additional grid (14). The process comprises at least one phase in which electrons are emitted to the anode by field effect elements, and at least one regeneration phase during which the electrons output from the elements are not transmitted to the anode. The regeneration phase is implemented by applying an electron blocking voltage (VB) to the additional grid (14) such that electrons drop back to the cathode.The invention is applicable to flat image display screens and any device comprising a field effect cathode (x-ray tube, etc.).