Patent ID: 6380668
Filing Date: 2002-04-30
Classification: H01J

Abstract:
A cathode ray tube comprising:a panel having an inner phosphor screen; a funnel having a panel sealing side, a cone portion and a neck sealing side, the panel sealing side of the funnel being sealed to the panel; a deflection yoke mounted around the cone portion of the funnel; a neck sealed to the neck sealing side of the funnel; and an electron gun mounted within the neck; wherein the cone portion of the funnel is formed with a sectional shape where a circle changes into a non-circle from a neck-side of the cone portion to a panel-side of the cone portion; wherein the cone portion of the funnel has a thickness in a horizontal axis direction and a thickness in a diagonal axis direction, and the ratio of the diagonal thickness to the horizontal thickness is in the range from 1.03 to 1.21.