Cathode body, electron gun, and cathode ray tube employing a fer

Details Cathode body, electron gun, and cathode ray tube employing a fer Cathode body, electron gun, and cathode ray tube employing a fer

1996-12-27

1999-02-23

Patel, Vip

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313446, 313310, H01J 162

Patent

active

058748024

ABSTRACT:
A cathode, an electron gun, and a cathode ray tube include a ferroelectric electron source. The cathode includes a substrate; a lower electrode layer on the substrate; a cathode layer, on the lower electrode layer, the cathode layer including a ferroelectric emitter; an upper electrode layer, on the ferroelectric cathode layer, the upper electrode layer having electron emitting regions comprising a plurality of electron emission holes for passing electrons emitted from the ferroelectric emitter; and a driving electrode layer, supported by the upper electrode layer, for controlling passage of electrons through the electron emitting regions in the upper electrode layer and the driving electrode layer.

REFERENCES:
patent: 5453661 (1995-09-01), Auciello et al.
patent: 5508590 (1996-04-01), Sampayan et al.
Gundel et al., "Intense charged-particle emission in a diffuse vacuum discharge", Applied Physics Letters, vol. 56, No. 16, pp. 1532-1534, Apr. 16, 1990.
Auciello, M.A., O., et al. "Low voltage electron emission from Pb (Zr.sub.x Ti.sub.1-x) O.sub.3 -based thin film cathodes." Applied Physics Letters vol. 66, No. 17, 24 Apr. 1995: 2183-2185.

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