Patent ID: 6628057
Filing Date: 2003-09-30
Classification: H01J

Abstract:
A cathode-ray tube comprising an evacuated envelope having therein an electron gun for generating an electron beam, a faceplate panel having a luminescent screen with phosphor elements on an interior surface thereof, and a focus mask, wherein the focus mask includes a plurality of spaced-apart first conductive strands having a slightly insulating material thereon, and a plurality of spaced-apart second conductive wires oriented substantially perpendicular to the plurality of spaced-apart first conductive strands, the plurality of spaced-apart second conductive wires being bonded to a slightly conductive insulating material, wherein the slightly conductive insulating material is composed of a composite material comprising one or more transition metal oxides and a lead-zinc-borosilicate glass, wherein the one or more transition metal oxides are selected from the group consisting of iron oxide (Fe2O3 and Fe3O4), titanium dioxide (TiO2), zinc oxide (ZnO), molybdenum oxide (MoO3), chromium oxide (Cr2O3), tin oxide (SnO2), and nickel oxide (NiO).