Patent ID: 6674224
Filing Date: 2004-01-06
Classification: H01J

Abstract:
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 lines on an interior surface thereof, and a tension focus mask, wherein the tension focus mask includes a plurality of elongated spaced-apart first electrodes which are substantially parallel to each other, and a plurality of spaced-apart second electrodes oriented substantially perpendicular to the plurality of spaced-apart first electrodes, said plurality of spaced-apart first electrodes comprising:a screen-facing side, an electron-gun-facing side, and first and second side walls extending from said screen-facing side, said sides forming a substantially flat configuration with corner edges formed along said sides; and, an insulating material applied on said screen-facing side and said corner edges to bond said first electrodes to said second electrodes and to shield said edges of said first electrodes, wherein said insulating material covers said screen-facing side and said two side walls.