Field emission cold cathode having a cone-shaped emitter

Details Field emission cold cathode having a cone-shaped emitter Field emission cold cathode having a cone-shaped emitter

1997-10-27

2000-01-25

Patel, Vip

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

313495, 313311, H01J 744

Patent

active

060182156

ABSTRACT:
A field emission cold cathode in which all protrusion portions and corner portions around a gate electrode as well as corner portions facing an anode electrode are formed so as to be at obtuse angles or arc-shaped, whereby discharging of the gate electrode is suppressed to prevent breakdown of the device. A dummy electrode having more acute protrusion portions of the gate electrode is provided around the gate electrode, to further suppress discharging of the gate electrode.

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patent: 5543680 (1996-08-01), Tomihari
patent: 5644187 (1997-07-01), Jaskie et al.
patent: 5719477 (1998-02-01), Tomihari
patent: 5734223 (1998-03-01), Makishima et al.
patent: 5786657 (1998-07-01), Okamoto
patent: 5814931 (1998-09-01), Makishima

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