DEFLECTION YOKE, CATHODE-RAY TUBE DEVICE AND DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To correct, by using a single saturable reactor, both a crossed microconvergence of lateral rasters R and B displayed by both-side electron beams and pincushion distortion occurring at an intermediate section of a longitudinal raster G. SOLUTION: A control coil 25 of a saturable reactor is connected to vertical deflection coils 13a and 13b. A coil to be controlled of the saturable reactor is composed of primary coils 22a, 22d, secondary coils 23a to 23d, and tertiary coils 24a and 24b, all of which are would around saturable cores 21a to 21d. A parallel connection is made between a first circuit in which the secondary coils 23a to 23d and one 12a of coil half bodies of a horizontal deflection coil are connected in series and a second circuit in which the tertiary coils 24a to 24d and the other 12d of the coil half bodies of the horizontal deflection coil. The parallel circuit is connected with the primary coils 22a to 22d in series.