Color cathode ray tube with plural electron gun assemblies

Claim 1

A color cathode ray tube comprising: a vacuum envelope including a panel having a single faceplate and a skirt extending from said faceplate, a plurality of funnels coupled to said panel, and a plurality of necks respectively extending from said plurality of funnels; a plurality of electron gun assemblies respectively accomodated in said plurality of necks, each electron gun emitting a plurality of electron beams; a plurality of deflection units respectively mounted around said plurality of funnels, each deflection unit being arranged to deflect electron beams emitted from a corresponding one of said plurality of electron gun assemblies; a screen formed on said faceplate, including phosphor elements for emitting rays of different colors in response to impinging electron beams, and defined by a plurality of continuous segment regions scanned with electron beams emitted from corresponding ones of said plurality of electron gun assemblies and deflected by corresponsing ones of said plurality of deflection units; and a mask received in the vacuum envelope and facing said faceplate and having a plurality of effective row and column regions corresponding to said plurality of segment regions and non-effective regions for surrounding and partitioning said effective row and column regions, said effective regions being provided with apertures for allowing passage of electron beams therethrough to impinge on said phosphor elements in the corresponding segment regions and said apertures being formed at predetermined pitches.