Color cathode ray tube

A color cathode ray tube comprising:

• a panel on an inner surface of which a phosphor screen is formed;
• a funnel joined to the panel;
• an electron gun generating electron beams;
• a shadow mask mounted to the panel, the shadow mask having a faceplate portion and a peripheral skirt portion bent back from the faceplate portion and extending a specific length from the faceplate portion;
• and
• a frame joined to said shadow mask;
• wherein at least a corner of the peripheral skirt portion of the faceplate portion of said shadow mask includes a substantially straight line portion with an infinite radius of curvature, and a gap with a substantially constant distance is provided between the corner of the faceplate portion of said shadow mask and a corresponding corner of said frame along substantially the entire specific length of the peripheral skirt portion;
• and
• wherein a portion of said skirt portion is opposite to said frame, and the height of the portion opposite to said frame is 10 mm or below.

A color cathode ray tube comprising:

• a panel on an inner surface of which a phosphor screen is formed;
• a funnel joined to the panel;
• an electron gun generating electron beams;
• a shadow mask mounted to the panel, the shadow mask having a faceplate portion and a peripheral skirt portion bent back from the faceplate portion and extending a specific length from the faceplate portion;
• and
• a frame joined to said shadow mask;
• wherein
• at least an entire corner of the peripheral skirt portion of the faceplate includes a concave portion with a negative radius of curvature, and
• a gap with a substantially constant distance is provided between the corner of the faceplate portion of said shadow mask and a corresponding corner of said frame along substantially the entire specific length of the peripheral skirt portion.