Aeg Elektronische Rohren Gmbh

Gerhard Gassler

Karl Holdik

Michael Gailberger

Anja Keller

Mona Ferguson

Gerhard Horsch

Gunter Maetze

A process for preparing a phosphor layer of a cathode ray tube. To prepare a phosphor layer located on the display screen rear side of the cathode ray tube, the display screen rear side is first coated with an electrically conductive electrode layer consisting of electrically conductive polymers; a solution containing the phosphors or their precursors as well as a solution containing an electrolyte are deposited on the electrode layer; an electric field is applied between the electrode layer and the solution; and the phosphors are electrophoretically deposited on the electrode layer to form the phosphor layer. Since polymers with an evaporation temperature below the destruction temperature of the phosphors are selected, the electrode layer can subsequently be removed by evaporating the polymers.

Process for preparing a phosphor layer of a cathode ray tube

A grid electrode for a cathode ray tube includes a ceramic carrier lamina having a thickness of up to about 0.5 mm and opposite lamina surfaces; a throughgoing aperture defined in the carrier lamina by a wall portion thereof extending between the lamina surfaces; and a metallized surface portion forming part of one of the lamina surfaces. The metallized surface portion is situated in a zone of the aperture.

Grid electrode structure for a cathode ray tube

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Ulm, Germany

Gerhard Gassler