| 摘要 |
A substantially rectangular shadow mask in a dome shape includes a plurality of tie-bands with a longitudinal direction thereof being a short-side direction of the shadow mask, a plurality of bridges connecting the tie-bands adjacent to each other in a long-side direction of the shadow mask, and a plurality of electron beam passage apertures formed between the tie-bands. In a region sandwiched by a pair of straight lines parallel to the long-side direction, which respectively pass through a pair of the bridges adjacent to each other in the short-side direction, on a surface of the tie-band on a side opposed to a panel, a plurality of non-through concave portions are formed. Consequently, color displacement caused by heat doming of the shadow mask can be suppressed.
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