Patent ID: 8232716
Filing Date: 2012-07-31
Classification: H01J

Abstract:
1. A method for driving a FED, comprising: emitting primary electrons from an electron emitter; colliding the emitted primary electrons with an inner surface of a tube to generate secondary electrons from the inner surface of the tube, wherein the tube is spaced apart from the electron emitter and comprises a first opening and a second opening, the first opening is formed at one end of the tube adjacent to the electron emitter and the second opening is formed at the other end of the tube; inducing the primary and the secondary electrons into the second opening of the tube using a gate electrode, the gate electrode disposed on an outer surface of the tube, wherein the gate electrode extends in a longitudinal direction between the first opening of the tube and the second opening of the tube; and emitting the induced primary and secondary electrons outward from the tube through the second opening.