Linear response field emission device

Details Linear response field emission device Linear response field emission device

1996-05-01

1998-05-26

Pascal, Robert

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315167, 315 58, 313309, 313336, G09G 310

Patent

active

057571384

ABSTRACT:
A design for a field emission device comprising a cold cathode emitter, a control gate and a focus gate, is discussed. The focus gate is connected to the emitter voltage source and a ballast resistor is inserted between this connection point and the emitter. This ensures that the focus gate will always be more negative than the emitter, this difference in potential increasing with increasing emitter current. This leads to a linear current-voltage characteristic for the device and also makes for a tighter electron beam than that provided by designs of the prior art. A physical realization of the design is described along with a cost effective method for manufacturing said physical realization.

REFERENCES:
patent: 3789471 (1974-02-01), Spindt et al.
patent: 5012153 (1991-04-01), Atkinson et al.
patent: 5070282 (1991-12-01), Epsztein
patent: 5162704 (1992-11-01), Kobori et al.
patent: 5191217 (1993-03-01), Rane et al.
patent: 5585301 (1996-12-01), Lee et al.
patent: 5589738 (1996-12-01), Onodaka et al.

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