Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1996-12-04
1999-05-18
Ramsey, Kenneth J.
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
445 24, 427226, H01J9/14
Patent
active
059053364
ABSTRACT:
Metal-oxide layers having a high .delta..sub.max, such as in particular magnesium-oxide layers, are provided on a glass substrate, such as a selection plate or a channel plate, of an electronic display device by means of a spray-pyrolysis process. To this end, a solution of a metal salt, such as Mg acetate, in ethanol or another (organic) solvent and/or water is sprayed onto a substrate which is maintained at a temperature of 350-550.degree. C. In a display device which is provided with such a layer on the bottoms and walls of the channels of the channel plate, a minimum transport voltage of 50-100V/cm is required.
REFERENCES:
patent: 4289816 (1981-09-01), Fogelberg et al.
patent: 5442253 (1995-08-01), Van Gorkom et al.
patent: 5726076 (1998-03-01), Tasker et al.
Bernards Thomas N. M.
Mutter Claudia
Van Bommel Marcus J.
Van Hal Henricus A. M.
Faller F. Brice
Ramsey Kenneth J.
U.S. Philips Corporation
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