Method for manufacturing a cathode for fluorescent display scree

Details Method for manufacturing a cathode for fluorescent display scree Method for manufacturing a cathode for fluorescent display scree

1995-02-17

1996-11-12

Ramsey, Kenneth J.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

425 24, H01J 902

Patent

active

055743331

ABSTRACT:
A method for manufacturing a fluorescent display screen cathode including microtips, comprises a supporting plate bearing cathode conductors in meshed columns, a resistive layer bearing microtips, an insulating layer and a grid conductive layer in rows. The method comprises the step of simultaneously etching the three upper grid layer, insulating layer and resistive layer according to a single perforated pattern defining both the grid rows and the access resistance to the microtips through the resistive layer.

REFERENCES:
patent: 4857161 (1989-08-01), Borel et al.
patent: 5259799 (1993-11-01), Doan et al.
patent: 5371433 (1994-12-01), Horne et al.
patent: 5408161 (1995-04-01), Kishino et al.

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