Patent ID: 6465942
Filing Date: 2002-10-15
Classification: H01J

Abstract:
A color cathode ray tube comprising a generally rectangular shadow mask having a curved apertured portion having a multiplicity of electron-transmissive apertures, a curved imperforate portion surrounding and integral with said apertured portion and a skirt portion bent back from a periphery of said curved imperforate portion, and a generally rectangular support frame for suspending said shadow mask by spot welding said skirt portion thereto, within a panel portion of said color cathode ray tube;wherein said skirt portion is provided with a plurality of embossments and is fitted inside said support frame; wherein said plurality of embossments protrude inwardly and extend in a direction of a height of said skirt portion; and wherein a distance between a bottom of each of said plurality of embossments and a border of said curved apertured portion is at least 4.5 mm.