Field emitter array and cleaning method of the same

Details Field emitter array and cleaning method of the same Field emitter array and cleaning method of the same

1994-07-19

1996-12-24

Saras, Steven

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

313309, G09G 310

Patent

active

055877206

ABSTRACT:
A field emitter array includes electron-beam source elements, each including a cathode for emitting electrons and a gate provided in the vicinity of the cathode. To emit electrons from the cathode by the field emission effect, a cathode voltage is applied to the cathode and a gate voltage is applied to the gate. An anode is arranged in proximity to the cathode and supplied with a positive anode voltage to capture electrons from the cathode in a first (e.g., normal or display) mode of operation. In a second (e.g., cleaning) mode of operation of the field emitter array, a negative anode voltage is supplied to the anode to urge electrons emitted by a first cathode, back toward a second cathode supplied with a cathode voltage which attracts electrons, to clean the second cathode.

REFERENCES:
patent: 3775630 (1973-11-01), Minamikawa et al.
patent: 4578614 (1986-03-01), Gray et al.
patent: 4908539 (1990-03-01), Meyer
patent: 5012153 (1991-04-01), Atkinson et al.
patent: 5189341 (1993-02-01), Itoh et al.

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