Flat color cathode-ray tube
AssigneeSanyo Electric Co., Ltd.
InventorsKatsuhiro Hinotani, Hajime Hayama, Shunichi Kishimoto, Takashi Miwa, Yasuo Funazo, Kazuhiro Kouno
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Abstract
A flat color CRT wherein a single beam emitted from an electron gun scans the inner surface of a tube wall and which includes a phosphor screen formed on the walls inner surface. The phosphor screen comprises a nonluminescent substance and phosphor index stripes with the substance interposed between the stripes. Red, green, blue primary phosphor color stripes have a sufficient thickness and are arranged repeatedly on the nonluminescent substance at a spacing in a definite relation to the phosphor index stripes.
Claims8
A flat, color CRT which comprises:
- a flat glass tube having first and second walls opposed to and spaced from each other, an electron gun for scanning the inner surface of said first wall with a single beam, and a phosphor screen provided on said inner surface of said first wall, said phosphor screen includes a nonluminescent substance and phosphor index stripes provided on said inner surface of said first wall with said nonluminescent substance interposed therebetween, and red, green, blue primary phosphor color stripes have a sufficient thickness and arranged repeatedly on said nonluminescent substance at a small distance from one another in a definite relation to said index stripes, said second wall being provided with an observation window for observing the luminescence of said phosphor color stripes of said phosphor screen.
Dependencies are inferred from the claim text.