Electric lamp and discharge devices – Cathode ray tube – Screen
Patent
1996-07-24
1997-11-11
O'Shea, Sandra L
Electric lamp and discharge devices
Cathode ray tube
Screen
313474, 313478, H01J 2910, H01J 3100
Patent
active
056867875
ABSTRACT:
A color picture tube is disclosed, that comprises an outer sheath having an electron gun, the outer sheath being airtightly sealed, a face plate having light transmissivity and disposed on the front surface of the outer sheath, and a large number of red, blue, and green pixels regularly arranged inside the face plate, wherein the pixels have a fluorescent substance layer and a color filter, the fluorescent substance layer being lit by a radiation of an electron beam, the color filter being disposed between the fluorescent substance layer and the face palate, and wherein green pixels have a chromaticity that is plotted in the fourth quadrant of a coordinate system of a (L*a*b*) color system where a* is the horizontal axis and *b is the vertical axis when light of a standard light source C is reflected on the outside of the face plate.
REFERENCES:
patent: 2959483 (1960-11-01), Kaplan
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patent: 3748515 (1973-07-01), Kaplan
patent: 3884694 (1975-05-01), Gallaro et al.
patent: 3884695 (1975-05-01), Gallaro et al.
patent: 3891440 (1975-06-01), Gallaro et al.
patent: 4135112 (1979-01-01), Fisher et al.
patent: 5121030 (1992-06-01), Schott
Itou Takeo
Matsuda Hidemi
Nakazawa Tomoko
Oyaizu Tsuyoshi
Tanaka Hajime
Haynes Mack
Kabushiki Kaisha Toshiba
O'Shea Sandra L
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