Abstract: A cathode ray tube mounted with: a front glass panel; a funnel connected to the panel, thereby forming a vacuum tube; an electron gun emitting electron beams; and a deflection yoke deflecting the electron beams emitted from the electron gun in the horizontal and vertical direction; wherein the deflection yoke comprises: a deflection coil wound of a coil wire deflecting the electron beams; wherein the coil wire has a core reinforcing a magnetic field generated around the deflection coil, and the deflection coil wire comprises an aluminum core; a copper layer surrounding the aluminum core; and an insulating layer surrounding the copper layer

Abstract: In a deflection yoke for a braun tube deflecting an electron beam radiated from an electron gun to a screen and including a horizontal deflection coil, a vertical deflection coil and a ferrite core, the horizontal deflection coil is installed inside a funnel, the ferrite core is installed outside of the funnel, the vertical deflection coil is installed inside or outside of the funnel, accordingly the convergence and deflection sensitivity of an electron beam can be easily compensated, the deflection sensitivity of a braun tube can improve, and the degree of freedom in designing the deflection yoke and an electron gun related to enlarging a diameter of the electron gun can increase.

Abstract: A deflection yoke for Braun tube includes an opening flange coil, a main deflection portion coil extended with a predetermined length from the both end portions of the opening flange coil backwardly; a first neck flange coil connected to the extended end portion of the main deflection portion coil; and a second neck flange coil formed at the front side of the first neck flange coil, wherein, assuming that the height of the first neck flange coil is ‘h’, the length of the second neck flange coil is ‘I’ and their ratio (I/h) is ‘A’, ‘A’ is greater than 0.5 and smaller than 2.0, and assuming that the length of the main deflection portion coil is ‘L’, the length of the second neck flange coil is ‘I’ and their ratio (I/L) is ‘B’, ‘B’ is greater than 0.04 and smaller than 0.24.

Abstract: In a deflection yoke for a braun tube deflecting an electron beam radiated from an electron gun to a screen and including a horizontal deflection coil, a vertical deflection coil and a ferrite core, the horizontal deflection coil is installed inside a funnel, the ferrite core is installed outside of the funnel, the vertical deflection coil is installed inside or outside of the funnel, accordingly the convergence and deflection sensitivity of an electron beam can be easily compensated, the deflection sensitivity of a braun tube can improve, and the degree of freedom in designing the deflection yoke and an electron gun related to enlarging a diameter of the electron gun can increase.

Abstract: A deflection yoke for Braun tube includes an opening flange coil, a main deflection portion coil extended with a predetermined length from the both end portions of the opening flange coil backwardly; a first neck flange coil connected to the extended end portion of the main deflection portion coil; and a second neck flange coil formed at the front side of the first neck flange coil, wherein, assuming that the height of the first neck flange coil is ‘h’, the length of the second neck flange coil is ‘I’ and their ratio (1/h) is ‘A’, ‘A’ is greater than 0.5 and smaller than 2.0, and assuming that the length of the main deflection portion coil is ‘L’ , the length of the second neck flange coil is ‘I’ and their ratio (I/L) is ‘B’, ‘B’ is greater than 0.04 and smaller than 0.24.

Abstract: A magnet assembly for a CRT, installed in the outer periphery of a neck portion incorporating an electron gun for emitting R, G and B electron beams for converging the electron beams on the center of a screen is disclosed. The magnet assembly includes a magnet support inserted into the outer periphery of the neck portion, a pair of two-, four- and six-pole magnet rings rotatably installed in the outer periphery of the magnet support, spacers inserted between the each pair of magnet rings, and a magnet fixing means rotatably coupled in the outer periphery of the magnet support for fixing the magnet support on the neck portion and preventing the magnet rings and the spacer from being fluctuated on the magnet support.