Patent ID: 6577048
Filing Date: 2003-06-10
Classification: H01J

Abstract:
A color CRT having an inner shield being mounted at a frame inside a panel and a funnel to shield an earth magnetic field, whereinthe inner shield comprises: a vertical portion formed in parallel to the central axis of the CRT and mounted at the frame, a slope portion extended slanted against the central axis of the CRT at a rear side of the vertical portion and a notch with its central portion formed concave at the end portion of the slope portion, the opposite of the frame; and on the assumption that the entire height of the inner shield constructed with the vertical portion and the slope portion is â€˜Vâ€™, a height (V1) of the vertical portion satisfies the relational expression of 0.18&lE;V1/V&lE;0.25, and on the assumption that the shortest height from a starting point of the vertical portion to the notch is V2, the height V1 of the vertical portion satisfies a relational expression of 0.40&lE;V1/V2&lE;0.54.