Patent ID: 6803711
Filing Date: 2004-10-12
Classification: H01J

Abstract:
A mask for a color cathode ray tube, the mask comprising:a plurality of strips being parallel to each other, being distinguishable from each other, and being located at predetermined intervals; and a plurality of bridges connecting adjacent ones of said strips to each other and forming slots extending from a first surface of said mask to a second surface of said mask, said slots being penetrated by electron beams, said bridges being indented to a predetermined depth from said first surface of said mask so that a thickness of said mask at a central portion of said bridges is relatively thinner than a thickness of said mask at an outer portion of said bridges; said plurality of bridges including first bridges near a central region of said mask and including second bridges near a periphery region of said mask away from said central region, a first width of said first bridges as measured perpendicular to a length direction of said slots being smaller than a second width of said second bridges, said first and second widths being measured perpendicular to the length direction of said slots.