Cathode-ray tube and method of manufacturing the same

Details Cathode-ray tube and method of manufacturing the same Cathode-ray tube and method of manufacturing the same

1994-07-12

1996-04-09

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313496, 313402, 313 21, H01J 3120

Patent

active

055064671

ABSTRACT:
A color cathode-ray tube comprises an envelope having rectangular flat face and rear plates opposing each other. A phosphor screen is formed on an inner surface of the face plate. Mask support members are mounted on an inner surface of the rear plate. A shadow mask is arranged in the envelope and supported by the mask support members to face the phosphor screen at a predetermined distance. A plurality of positioning posts are fixed on the inner surface of the rear plate and extend toward the face plate. A plurality of positioning pins extend from the inner surface of the face plate and engage the positioning posts so as to position the face plate at a predetermined position with respect to the rear plate. The shadow mask has setting openings through which the positioning posts extend so as to position the shadow mask at a predetermined position with respect to the rear plate.

REFERENCES:
patent: 3071706 (1963-01-01), Waldorf
patent: 4608518 (1986-08-01), Fukuda et al.
patent: 5365143 (1994-11-01), Nishimura et al.
Patent Abstracts of Japan, vol. 3, No. 38 (E-101) Mar. 30, 1979 & JP-A-54 016 172 (Toshiba Corp) Feb. 6, 1979.
Patent Abstracts of Japan, vol. 17, No. 319 (E-1383) Jun. 17, 1993 & JP-A-05 036 363 (Toshiba Corp) Feb. 12, 1993.
Patent Abstracts of Japan, vol. 17, No. 698 (E-1481) Dec. 20, 1993 & JP-A-05 242 826 (Toshiba Corp) Sep. 21, 1993.

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