A field emission cold cathode comprises a conductive substrate, an insulating layer formed on the substrate and having plural cavities each for receiving an emitter, a gate electrode for applying a high electric field to the tips of emitters. An annular portion of the gate electrode each defining an...http://www.google.fr/patents/US5651898?utm_source=gb-gplus-shareBrevet US5651898 - Field emission cold cathode and method for manufacturing the same
Field emission cold cathode and method for manufacturing the same
