Abstract: An improved process for providing positive electrical connection between the shadow mask, the conductive coating and the aluminum film by way of the mask-supporting studs is disclosed. The process is for use in the manufacture of a cathode ray tube having a face panel including a rearwardly extending skirt with a seal land for attachment to a funnel having a mating seal land. The face panel and skirt receive an internal coat of electrically conductive dag. The face panel has an inner surface for receiving a pattern of discrete phosphor deposits overlaid with an electrically conductive aluminum film. The tube includes a shadow mask for color selection receiving a high voltage, and held dependent adjacent to the face panel by a plurality of metal studs extending inwardly from the skirt.

Abstract: This invention relates to improvements in the art of aluminizing the phosphor screens of image display devices such as television cathode ray picture tubes. An improved method comprises the application of a highly alkaline aqueous dispersion of a siliceous coating agent and a surfactant prior to aluminizing. The solution includes an acidic pH-lowering substance in an amount sufficient to adjust pH to a neutral range.

Abstract: This invention relates to improvements in the art of aluminizing the phosphor screens of image display devices such as television cathode ray picture tubes. A solution for rewetting a phosphor-bearing image display faceplate prior to aluminizing comprises a highly alkaline aqueous dispersion of a siliceous coating agent and a surfactant. The solution according to the invention includes an acidic pH-lowering substance in an amount sufficient to adjust pH to a neutral range.