Cold-cathode electron source and field-emission display

Details Cold-cathode electron source and field-emission display Cold-cathode electron source and field-emission display

2006-07-18

2006-07-18

Philogene, Haissa (Department: 2828)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C315S169300, C315S382000, C313S495000, C313S497000, C313S336000

Reexamination Certificate

active

07078863

ABSTRACT:
A cold-cathode electron source having an improved utilization efficiency of an electron beam and a simple structure. The cold-cathode electron source comprises a gate electrode (4) provided on a substrate (2) through an insulating layer (3) and an emitter (6) extending through the insulating layer (3) and the gate electrode (4) and disposed in an opening of the gate. During the emission of electrons from the emitter (6), the following relationships are satisfied: 10 [V/μm]≧(Va−Vg)/(Ha−Hg)≧Vg/Hg; and Vg/Hg [V/μm]≧Va×10−4×(9.7−1.3×1n(Hg))×(1000/Ha)0.5, where Ha [μm] is an anode-emitter distance, Va [V] is an anode-emitter voltage, Hg [μm] is a gate-emitter distance, and Vg [V] is a gate-emitter voltage.

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