Patent ID: 6803714
Filing Date: 2004-10-12
Classification: H01J

Abstract:
A mask assembly for a color cathode ray tube comprises:a panel, having a fluorescent surface disposed at an inner side thereof; a funnel adhered to a rear side of said panel, wherein adhesion is enabled by frit glass; a shadow mask coupled to the inner side of said panel, wherein a plurality of electron through-holes perform color discrimination for an electron beam; and a frame comprised of a main frame welded to the shadow mask at a front surface of said main frame for supporting said shadow mask toward the panel and a sub-frame supporting said main frame, wherein said sub-frame is joined to a rear surface of said main frame, wherein a relation of T/t&gE;45 is satisfied, where t is the thickness of the shadow mask and T is the thickness of a part of the main frame where the main frame is welded to the shadow mask.