Display device having plate with electron guiding passages

Details Display device having plate with electron guiding passages Display device having plate with electron guiding passages

1995-04-07

1998-06-16

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313422, 313496, H01J 162, H01J 6304

Patent

active

057676216

ABSTRACT:
After a plate of electrically insulating, particularly hard and brittle material has been provided with a mask having a very large number of patterned apertures, it is exposed to at least one jet of abrasive powder particles, which jet is moved relative to the plate. In this way a plate is manufactured with a pattern of apertures and/or cavities which are eminently suitable for manipulating electron currents in electronic displays. Plates manufactured in this way may be used, for example, as control plates, spacer plates, or electron transport duct plates in electronic displays.

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"Integrated Control Grids for CRTs", IBM Technical Disclosure Bulletin, vol. 31, No. 12, May, 1989, pp. 17-18.

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