EXTENSION-TYPE SHADOW MASK FOR CATHODE RAY TUBE

摘要

PROBLEM TO BE SOLVED: To provide an extension-type shadow mask in a cathode ray tube capable of preventing lowering of resolution by shadow reflection of a tie bar and improving recognition by visual sense. SOLUTION: This shadow mask includes many strips 41 isolated one another by a prescribed interval and have slits 42 formed, tie-bars 43 linking the adjacent strips 41 and partitioning the slits 42 and auxiliary tie bars 44 which are provided among tie bars 43 and extend from at least one strip 41 of the two strips opposed each other to the other strip 41 side. The vertical widths of the auxiliary tie bars 44 in directions parallel to the strips 41 are formed to be wider than the vertical widths of the tie bars 43.