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AssigneeThomson Licensing S. A.
InventorsBarry Jay Thaler, Philip Michael Heyman, Robert Leon Quinn, Richard Joseph Quinn, Liyou Yang
Estimating the term…
A color cathode-ray tube (CRT) has an evacuated envelope with an electron gun therein for generating an electron beam. The envelope further includes a faceplate panel having a luminescent screen with phosphor elements on an interior surface thereof. A focus mask, having a plurality of spaced-apart first conductive strands, is located adjacent to an effective picture area of the screen. The spacing between the first conductive strands defines a plurality of apertures substantially parallel to the phosphor elements on the screen. Each of the first conductive strands has a substantially continuous slightly conductive insulating material layer formed on a screen facing side thereof. A plurality of second conductive wires are oriented substantially perpendicular to the plurality of first conductive strands and are bonded thereto by the slightly conductive insulating material layer. The slightly conductive insulating material layer is a composite material comprising one or more transition metal oxides and a lead-zinc-borosilicate glass.
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).
A method of manufacturing a cathode-ray tube comprising an evacuated envelope having therein an electron gun for generating at least one 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, and a plurality of spaced-apart second conductive wires oriented substantially perpendicular to the plurality of spaced-apart first conductive strands, comprising the steps of:
Dependencies are inferred from the claim text.