| 摘要 |
PURPOSE: A cathode ray tube is provided to be capable of simplifying an integrated tube components(ITC) process and of making the center of a tube axis easily correspond to that of a deflection yoke. CONSTITUTION: A fluorescent film screen(16) is formed in a panel(10) and has a plurality of patterned red, green and blue fluorescent substances, and a shadow mask(18) with a plurality of beam-passed holes corresponding to the patterned red, green and blue fluorescent substances is disposed at a rear surface of the fluorescent film screen(16). A mask frame(20) for supporting the shadow mask(18) is disposed around the shadow mask(18). A neck part(24) is connected to a funnel(12), and a deflecting yoke(14) is mounted around a corn part of the funnel(12). An electron gun(22) is mounted at the neck part(24). A plurality of protruded ribs(26) are formed on the same line in a constant interval. The protruded ribs(26) maintain an optimum deflection state by making the center of a tube axis correspond to the center of the deflecting yoke(14).
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