JPH0186048U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an external view of the deflection yoke device of this embodiment as seen from the rear side, Fig. 2 is a circuit diagram showing the connection state of the correction coil, and Fig. 3 is a view of the static convergence correction device together with its correction operation as seen from the screen side. Configuration diagram, Figure 4 is an explanatory diagram of the screen showing the state where static convergence is not corrected, Figure 5 is an explanatory diagram of the screen showing the state after static convergence is corrected, and Figure 6 is the connection state of the correction coil. A circuit diagram showing a modification of
FIG. 7 is a block diagram of a static convergence correction device similar to FIG. 3, showing a correction operation when the correction current is reversed. 1... Deflection yoke device, 2... Coil bobbin,
3... Core, 4... Vertical deflection coil, 5... Color picture tube, 6A to 6D... Static convergence correction device, 7A to 7D... Rod-shaped core, 8A to 8D...
Correction coil, 9...DC power supply, 10...variable resistor.

Claims (1)

[Scope of utility model registration request] In a deflection yoke device comprising a coil bobbin, a horizontal deflection coil and a vertical deflection coil attached to the coil bobbin, the coil bobbin is attached to an in-line array color picture tube to deflect three electron beams. At the rear end, four static convergence correction devices each having a correction coil wound around a rod-shaped core are arranged at diagonal positions, and the correction coils of each static convergence correction device are connected to a DC power supply, The deflection yoke device is characterized in that it is configured to generate a correction magnetic field for concentrating the left and right electron beams arranged in-line into a central electron beam.