Back to results
US 6,147,445 AGranted
Uniformization of the electron emission of a flat screen microtip cathode
AssigneePixtech S.A.
InventorsAxel Jager, Christian Torrent
Life of this patent
Estimating the term…
Abstract
The present invention relates to a flat display screen cathode of the type including, on a substrate, columns of cathode conductors which can be biased individually and associated with a resistive layer on which are deposited electron emission microtips, and including means for canceling a possible lateral electric field between two neighboring columns brought to different potentials.
Claims10
A flat display screen cathode comprising:
- a substrate;
- columns of cathode conductors formed on the substrate, the columns of cathode conductors capable of being biased individually;
- a resistive layer deposited on the cathode conductors;
- electron emission microtips deposited on the resistive layer;
- and
- means for canceling a lateral electric field between two neighboring columns brought to different potentials, the lateral electric field canceling means disposed on the substrate.
3 more elements
Dependencies are inferred from the claim text.