Cold cathode field emission display with each microtip having it

Details Cold cathode field emission display with each microtip having it Cold cathode field emission display with each microtip having it

1996-08-27

1997-05-27

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313309, 313336, 313351, H01J 100

Patent

active

056335601

ABSTRACT:
A cold cathode field emission display is described. A key feature of its design is that each individual microtip has its own ballast resistor. The latter is formed from a resistive layer that has been interposed between the cathode line and the substrate. When openings for the microtips are formed in the gate line, extending down as far as the resistive layer, an overetching step is introduced. This causes the dielectric layer to be substantially undercut immediately above the resistive layer thereby creating an annular resistor positioned between the gate line and the base of the microtip.

REFERENCES:
patent: 4940916 (1990-07-01), Borel et al.
patent: 5142184 (1992-08-01), Kane
patent: 5194780 (1993-03-01), Meyer
patent: 5229331 (1993-07-01), Doan et al.
patent: 5569973 (1996-10-01), Zimmerman

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