Microtip cathode with auxiliary insulating layer

Details Microtip cathode with auxiliary insulating layer Microtip cathode with auxiliary insulating layer

1995-08-04

1998-09-15

Horabik, Michael

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313309, H01J 130, H01J 1924

Patent

active

058084037

ABSTRACT:
A microtip cathode for flat panel display screens has a constant access resistance and includes a substrate (10), a resistive layer (19), at least one cathode conductor (13), an insulating layer (16), and a control gate (3). The microtip cathode further includes an auxiliary insulating layer (18) disposed between the cathode conductor (13) and the insulating layer (16) to suppress needle hole effects in the insulating layer (16).

REFERENCES:
patent: 4940916 (1990-07-01), Borel et al.
patent: 5451830 (1995-09-01), Huang
patent: 5525857 (1996-06-01), Grade et al.
patent: 5578896 (1996-11-01), Hsang

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