A NEW FABRICATION METHOD OF MAKING TETRODE FIELD EMISSION DISPLAY
Original Publication Date: 1998-Sep-01
Included in the Prior Art Database: 2002-Jul-17
Field emitter arrays are extensively studied for electron sources in vacuum microelectronic devices and flat panel display. In convention triode field emis- sion display, the electrons are extracted from the sharp tip by the gate electrode biased at a few ten volts high- er relative to the tips. Accelerated under the anode electric field, the electrons bombard the phosphor material on the anode and the phosphor emits light. The problem with this triode structure is the electron beam size is large for high-resolution display applica- tions. To obtain tine electron beam, the tetrode struc- ture is created. The additional electrode is used to focus the electron beam.