Patent ID: 6495954
Filing Date: 2002-12-17
Classification: H01J

Abstract:
A cathode ray tube with a central axis, the cathode ray tube comprising:a panel with an inner phosphor screen, the phosphor screen being substantially rectangular-shaped with four diagonal edges; a funnel connected to the panel, the funnel having a cone portion with a neck sealing side, and a body portion extended from the cone portion to the panel; a deflection yoke externally mounted around the funnel; a neck connected to the neck sealing side of the cone portion; and an electron gun mounted within the neck; wherein the meeting point between the cone portion and the body portion is indicated by a top of round; and wherein the funnel is structured to satisfy the following condition: âˆ’0.145âˆ’(0.0225Ã—&agr;)<0.08 where H indicates a distance in millimeter between opposite points at the top of round on a line drawn normal to the central axis, L indicates a distance in millimeter between the top of round and the neck sealing side of the cone portion on the central axis, and &agr; indicates a deflection angle in degrees.