Patent ID: 6455997
Filing Date: 2002-09-24
Classification: H01J

Abstract:
A deflection yoke for a cathode ray tube comprising:horizontal and vertical deflection coils for deflection of electron beams emitted from an electron gun in horizontal and vertical directions, respectively; a ferrite core disposed to surround the vertical deflection coil for improving magnetic efficiency; a holder adapted to fix positions of the horizontal and vertical deflection coils and the ferrite core and insulate the horizontal and vertical deflection coils; and, a magnetic material provided on an upper side and a lower side of a flange part formed at a screen side of the holder for canceling a magnetic field leaked from the horizontal deflection coil at the screen side of the holder, wherein the magnetic material is formed of ferrite selected from the group consisting of Niâ€”Zn ferrite, Mgâ€”Zn ferrite, and Mnâ€”Zn ferrite.