Cathode ray tube
OwnerToshimasa Ishigaki, Masahiro Nishizawa +2inventors
InventorsToshimasa Ishigaki, Masahiro Nishizawa, Fumio Takahashi, Tetsuo Suzuki
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Abstract
A cathode ray tube and a method of manufacturing the cathode ray tube, wherein a black matrix layer and at least one phosphor layer is formed on inner surface of panel portion, a filming liquid containing an acrylic emulsion having methyl methacrylate as a major component is applied on the at least one phosphor layer, the filming liquid is dried to make an organic film resin on the at least one phosphor layer, a metal is metal deposited on the organic film, and the portion is baked to remove the organic film.
Claims7
A method of manufacturing a cathode ray tube comprising the steps of:
- forming a black matrix layer and at least one phosphor layer on an inner surface of a panel portion;
- applying a filming liquid containing an acrylic emulsion having methyl methacrylate as a major component on said at least one phosphor layer;
- drying the filming liquid to make an organic film resin on said at least one phosphor layer;
- vapor-depositing a metal on said organic film;
- and
- baking the panel portion to remove said organic film.
A cathode ray tube comprising:
- a panel portion having a black matrix layer, a number of phosphor layers and a metal film, a neck portion housing electron guns, and a funnel portion connecting the panel portion and the neck portion;
- said black matrix layer and said phosphor layers being formed on inner surface of the panel portion;
- said metal film which has cracks being formed to cover said black matrix layer and said phosphor layers on said inner surface of the panel portion, said metal film having a transmittivity in a range of 0.1% to 1.0%.
Dependencies are inferred from the claim text.