Patent ID: 7629754
Filing Date: 2009-12-08
Classification: H01J

Abstract:
1. A deflection yoke for a cathode ray tube comprising: a horizontal deflection coil located close to an outer circumference of the funnel to generate a horizontal deflection magnetic field; a vertical deflection coil installed at the outer circumference of the funnel to generate a vertical deflection magnetic field, the vertical deflection coil being insulated from the horizontal deflection coil; a ferrite core located next to the vertical deflection coil to reduce a loss of magnetic force generated from the horizontal and vertical deflection coils; and a correction unit spaced apart from the horizontal deflection coil by a predetermined distance to correct a geometric distortion of the vertical and horizontal deflection magnetic fields, wherein the geometric distortions corrected by the correction unit comprise an NS pincushion distortion, a ½ NS pincushion distortion, an EW pincushion distortion, and a ½ EW pincushion distortion.