Patent ID: 6448702
Filing Date: 2002-09-10
Classification: H01J

Abstract:
A cathode ray tube comprising:(a) an electron gun; (b) a funnel which is open at one end and in which said electron gun is located; (c) a face panel which is open at one end and connected to said funnel such that said funnel and said face panel define a closed space; (d) an internal magnetic shield which is located in said space and which is open at opposite ends such that electrons emitted from said electron gun pass therethrough and reach said face panel; (e) a mask frame which internally supports said internal magnetic shield; and (f) a shadow mask which is located in said space in facing relation with said face panel and which is supported by said mask frame, said internal magnetic shield having an edge facing to said face panel, said edge having a closed cross-section and having a projecting portion at least partially projecting from said edge towards said face panel, said projecting portion having a distal end closer to said face panel than a distal end of said shadow mask.