Field emission device and driving method thereof
AssigneeElectronics and Telecommunications Research Institute
InventorsJin Woo Jeong, Yoon Ho Song
Life of this patent
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Abstract
Provided is a pulse drive-type field emission device. The pulse drive-type field emission device includes anode and cathode substrates that are spaced apart from and face each other, a cathode electrode formed on the cathode substrate, and a field emitter formed on the cathode electrode. The pulse drive-type field emission device further includes a metal mesh-type gate electrode having an opening through which electrons emitted from the field emitter pass and a power source which applies a compensated pulse wave power to the gate electrode or the cathode electrode to compensate for vibration of the gate electrode. Thus, noise from the metal mesh can be prevented without additional fabrication processes by modifying a waveform in pulse driving.
Claims16
A pulse drive-type field emission device comprising:
- an anode substrate and a cathode substrate spaced apart from and facing each other;
- a cathode electrode formed on the cathode substrate;
- a field emitter formed on the cathode electrode;
- a metal mesh-type gate electrode formed between the anode substrate and the cathode substrate, and having openings through which electrons emitted from the field emitter pass;
- and
- a power source configured to apply a compensated pulse wave voltage to the gate electrode or the cathode electrode which compensates for vibration of the gate electrode.
A driving method of a pulse drive-type field emission device having an anode substrate, a stacked structure of a field emitter and a cathode electrode on a cathode substrate, the cathode substrate being spaced apart from and facing the anode substrate and a metal mesh-type gate electrode formed between the anode substrate and the cathode substrate, the method comprising:
- applying a gate voltage to the gate electrode;
- generating a pentagonal pulse wave voltage having a greater duty than a pulse duty of the cathode electrode, and
- decreasing a change rate in voltage of the cathode electrode by controlling a current of the cathode electrode according to the pentagonal pulse wave voltage.
A driving method of a pulse drive-type field emission device having an anode substrate, a stacked structure of a field emitter and a cathode electrode on a cathode substrate, the cathode substrate being spaced apart from and facing the anode substrate and a gate electrode between the anode substrate and the cathode substrate, the method comprising:
- applying a constant voltage with time to the cathode electrode;
- generating a pentagonal pulse wave voltage having a greater duty than a pulse duty of the gate electrode;
- and
- applying the pentagonal pulse wave voltage to the gate electrode.
Dependencies are inferred from the claim text.