Microtip display device having a current limiting layer and a ch

Details Microtip display device having a current limiting layer and a ch Microtip display device having a current limiting layer and a ch

1996-03-19

1998-02-10

Dombroske, George M.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313497, 313308, 313336, 313309, H01J 1924, H01J 2970, H01J 2918

Patent

active

057172854

ABSTRACT:
A cathodoluminescent anode is formed on an insulating substrate, while on another insulating substrate are formed cathode conductors, an insulating layer, a grid layer used for the formation of grids, holes in the insulating layer and the grid layer and microtips in the holes. Moreover, a thin insulating layer is formed on the grid layer in order to limit the current liable to flow between the anode and the grids. Another thin layer or film is formed on the thin insulating layer that is sufficiently conductive or resistive to prevent disturbance by the thin electrically insulating layer, of the electric field created between the microtips and the grids.

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