KR830000427A - Deflection device - Google Patents

Abstract

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Description

Deflection device

This content is subject to disclosure, so the full text is not included.

FIG. 1 is a diagram showing the state of a deflected magnetic field of a self-conbi sense method of a color cathode ray tube having an in-line electron gun;

Fig. 2 is a diagram showing the distortion of the taster in the case of Fig. 1;

4 is a surface showing a state of a vertical deflection field according to the present invention,

Fig. 5 is a diagram showing a vertical deflection state according to the present invention in Fig. 4;

Claims (6)

The horizontal deflection device and the vertical deflection device mounted on the cathode ray tube guide the leakage magnetic flux generated by the vertical deflection device at a position corresponding to approximately 4 corners of the cathode ray tube screen, A deflecting device for a cathode ray tube provided with a means for changing a magnetic field from the cone side of the cathode ray tube to the pin cushion magnetic field direction. A deflection means mounted on a color cathode ray tube and having a vertical deflection coil for generating a varen-type deflection magnetic field and a horizontal deflection coil for generating a pincushion deflection magnetic field. Inducing the magnetic flux generated from the vertical deflection coil to a position corresponding to approximately four corners of the cathode ray tube screen, and changing the vertically oriented barrel magnetic field from the cone side of the cathode ray tube to the pin cushion magnetic field direction. A deflecting device according to range 1. In a plane deflecting device equipped with a color cathode ray tube with an inlaline electron gun, a vertical deflection coil generating a barrel type deflection magnetic field, and a horizontal deflection coil generating a pin cushion type deflection magnetic field, the leakage magnetic flux generated from the vertical deflection coil is used. The deflection circuit according to claim 2, wherein the vertical deflection barrel magnetic field is changed from the cone side of the cathode ray tube to the pin cushion magnetic field direction, and the left and right failure distortion of the screen is corrected. A core having a diameter of one end larger than that of the other end and a substantially cylindrical core, A deflection means for generating a barrel-distributed vertical magnetic field and a pin-cushion-distributed horizontal deflection magnetic field having a pair of vertical deflection coils facing each other and wound around the core to generate a barrel-distribution deflection magnetic field; A magnetic member having four arms disposed at a position corresponding to the four corners of the screen of the color cathode ray tube on which the core is mounted on the thick-diameter side of the core and protruding in the radial direction from the small-diameter portion of the core; Deflection device according to claim 2, characterized in that it is equipped with. In the deflection device of patent claim 4, the magnetic member is formed by a pair of magnetic plates installed to cover between opposite ends of the pair of vertical deflection coils, and each magnetic plate has two in the four arms. In the deflection device of claim 4, the four arm portions of the magnetic member are formed independently of each other. ※ Note: It is disclosed according to the contents of the initial application.