Electrical Characterization of Antistatic Coatings on the Neck Glass of Colour Cathode Ray Tubes

Abstract

The investigations of fluctuations of electrostatic potential in the cylinder of electronic optical system of colour cathode ray tubes induced by charge coupling on the surface of glass were performed. It is shown, that charge coupling and migration processes could be controlled by application of antistatic coatings. The sol-gel technology was applied for the formation of the antistatic coatings on the glass neck of CCRT. Different optically transparent oxide coatings compatible with the high temperature technological processes were deposited and tested. The measurements of the conductivity of coatings produced in different conditions were performed.