Patent ID: 6150910
Filing Date: 2000-11-21
Classification: H01J

Abstract:
A video display deflection apparatus, comprising:a vertical deflection coil for producing a deflection field to scan an electron beam along a first axis of a display screen of a cathode ray tube;a saddle shaped horizontal deflection coil for producing a deflection field to scan said electron beam along a second axis of said display screen of said cathode ray tube including a plurality winding turns forming a pair of side portions, a front end turn portion, close to said screen, and a winding corner formed between at least one of said side portions and said front end turn portion within a radial angular position ranging between 0 and 30 degrees, said at least one side portion having a first part conforming to a shape of a neck of said cathode ray tube and a second part interposed between said first part and said winding corner having a different degree of flare from said first part such that said winding corner is disposed away form a boundary between said first and second parts in a manner to extend an effective length of said horizontal deflection coil in a direction of said screen to provide raster distortion correction; anda magnetically permeable core for cooperating with said vertical and horizontal deflection coils to form a deflection yoke.