Shadow mask for color CRT
AssigneeLG. Philips Displays Korea Co., Ltd.
InventorSu Dong Kang
Life of this patent
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Abstract
A color cathode ray tube including a generally rectangular shadow mask having a curved aperture portion having a multiplicity of electron-transmissive apertures, a curved imperforate portion surrounding and integral with said apertured portion and a skirt portion being bent back from a periphery of said curved imperforate portion; said skirt portion being provided with a plurality of embossments and a plurality of: (a) tilted slits or (b) a plurality of tilted slits with bridge.
Claims19
A color cathode ray 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 being bent back from a periphery of said curved imperforate portion;
- said skirt portion being provided with a plurality of tilted slits and a plurality of embossments.
A color cathode ray 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 being bent back from a periphery of said curved imperforate portion;
- said skirt portion being provided with a plurality of tilted slits with bridge and a plurality of embossments.
Dependencies are inferred from the claim text.