Emissive flat panel display with improved regenerative cathode

Details Emissive flat panel display with improved regenerative cathode Emissive flat panel display with improved regenerative cathode

1997-02-28

1998-06-09

Pascal, Robert

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151694, 313326, 313346R, 445 60, G09G 310

Patent

active

057640041

ABSTRACT:
Method and apparatus are presented for the generation, regeneration, and transplantation of field enhancing whiskers to provide for an improved cathode in flat panel displays in particular, and in other applications. Such applications comprise devices in which there is an emissive cathode structure for producing electrons. There are clear advantages for the instant invention in the case of a flat panel display which requires a relatively large cathode area, because the present invention avoids excessive power loss due to radiation and conduction loss by permitting operation of the cathode at a significantly lower temperature than if it operated solely as a thermionic emitter. The combination of moderately elevated temperature and enhanced electric field allows the advantages of thermo-field assisted emission.

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