| 摘要 |
A horizontal deflection coil is formed by winding conductive wires. A wire density of the conductive wires in a first portion of the horizontal deflection coil, which is defined in a predetermined angle range centering on a winding angle, and which is set to be theta1 with respect to a horizontal direction as 0° in an electron-gun-side region, theta2 with respect to a horizontal direction as 0° in a middle region, and theta3 with respect to a horizontal direction as 0° in a screen-side region on a cross section perpendicular to a tube axis, is smaller than a wire density of the conductive wires in a portion of the horizontal deflection coil other than the first portion. The winding angles theta1, theta2, and theta3 in the first portion satisfy theta1>=theta2>=theta3. With this configuration, it is possible to provide a cathode-ray tube device in which, without an additional correcting coil or a specific correcting circuit for generating a correcting current, the dynamic convergence adjustment is facilitated, and an excellent convergence characteristic is achieved.
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