Patent ID: 6111346
Filing Date: 2000-08-29
Classification: H01J

Abstract:
A color cathode tube including 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;said skirt portion being provided with a plurality of slits extending in a direction of a height of said skirt portion and a plurality of embossments extending in said direction of the height of said skirt portion in at least one of a long side and a short side of said skirt portion;said plurality of slits and said plurality of embossments being juxtaposed around a circumference of said skirt portion, a majority of said plurality of slits in said at least one of said long side and said short side of said skirt portion being unbridled slits.