Patent ID: 6630777
Filing Date: 2003-10-07
Classification: H01J

Abstract:
An electron gun for a color cathode-ray tube, the electron gun comprisingcathodes arranged in a line lying in a plane, a plurality of electrodes sequentially disposed relative to the cathodes, each electrode having a central electron beam passage and two side electron beam passages on opposite sides of the central electron beam passage, the central and side electron passages having respective centers aligned along the line, for passing respective electron beams, a shield cup coupled to a last electrode, farthest from the cathodes, among the plurality of electrodes, and provided with three electron beam passages arranged along the line, and a coma correction portion disposed on one of the shield cup and at least one of the electrodes, among the plurality of electrodes, so that the coma correction portion is located above and below the line and in spaces between the center of the central electron beam passage and the centers of the side electron beam passages.