Color cathode ray tube having a reduced diameter part in the neck

U.S. Patent Number: 6404119

Abstract: A color cathode ray tube apparatus is provided to reduce the amount of deflection power required, this apparatus having a panel part, on the inside surface of which is formed a phosphor film that emits three primary colors, a funnel part that has its expanded aperture joined to the panel part and a funnel-shaped part, a neck part in which is housed an electron gun structure, and which is joined to the reduced-diameter .phi. a aperture of the funnel part, and a deflection yoke that is disposed between the funnel part and the neck part, the neck part being formed by a main part that houses the electron gun structure and a reduced-diameter part to which are attached the deflection yokes. The funnel part has a quadrangular pyramid shape at the end that is joined to the neck part, and this can also be used for attachment of the deflection yoke.

Inventors: Hidaka; Tadachika (Shiga, JP), Ueda; Masahiro (Shiga, JP), Yanai; Yoshiaki (Shiga, JP), Aibara; Nobumitsu (Shiga, JP), Arai; Shinji (Shiga, JP)

Assignee: NEC Corporation (Tokyo, JP)

Application Number: 09/163,695

Issued: 2002-06-11

Expired: 2006-06-11

Classes: 313/477R ; 220/2.3A

Field of search: 313/440,318.05,421,431,477R 335/210 220/2.3A,2.1A

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