Field emission cathode

Details Field emission cathode Field emission cathode

1998-03-09

2000-12-19

Patel, Ashok

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313336, 313351, 313309, 313497, H01J 130

Patent

active

061631078

ABSTRACT:
A field emission cathode that can uniform the number of electrons emitted from each emitter and can prevent a line defect even when a gate electrode is electrically short-circuited with an emitter. The movement of electrons in a channel formed on the channel forming electrode is controlled by applying a positive voltage to the current control electrode, so that the current supplied from the cathode electrode to the emitter can be controlled. If the emitter is short-circuited with the gate electrode, the increased current density destroys the channel, so that the current supply to the emitter can be stopped.

REFERENCES:
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patent: 4766340 (1988-08-01), Van Der Mast et al.
patent: 4908539 (1990-03-01), Meyer
patent: 5173634 (1992-12-01), Kane
patent: 5448133 (1995-09-01), Ise
patent: 5550435 (1996-08-01), Kuriyama et al.
patent: 5965972 (1999-10-01), Takada et al.

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