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US 5,820,920 AGranted
Method of producing cathode ray tube
AssigneeSony Corporation
InventorsSaori Ariji, Nobuyuki Matsushima, Shuichi Saito
Life of this patent
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Abstract
A method of producing a cathode ray tube comprising forming a phosphor layer on the inner surface of a panel of a glass bulb, forming an lacquer intermediate film on the phosphor layer, removing the lacquer intermediate film formed on the inner surface of the funnel of the glass bulb by a liquid in a state with the temperature of the glass bulb higher than the temperature of the liquid.
Claims8
A method of producing a cathode ray tube comprising the steps of:
- forming a phosphor layer on an inner surface of a panel of a glass bulb,
- forming a lacquer intermediate film at least on the phosphor layer;
- and
- removing a portion of the lacquer intermediate film with a liquid in a state such that a temperature of the glass bulb is higher than a temperature of the liquid.
1 more element
Dependencies are inferred from the claim text.