发明公开
EP1150325A1 Color cathode ray tube 有权
彩色阴极射线管

Color cathode ray tube
摘要:
In a color cathode ray tube in which a shadow mask 1 and an inner magnetic shield 2 are supported by a mask frame 31 and an electron shield 33 is provided in the mask frame 31, at least a part of the electron shield 33 is made to have a smaller anhysteretic magnetic permeability than the shadow mask 1, the mask frame 31 and the inner magnetic shield 2 when an applied magnetic field is 800 A/m (10 Oe). Since the magnetic resistance of the electron shield 33 increases, it is possible to reduce a leakage magnetic field from a tube-axis-side edge of the electron shield 33. Thus, a color cathode ray tube that reduces mis-landing due to a terrestrial magnetism and has no color displacement can be provided.
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