Phosphor screen for a flickerless cathode ray tube and a process for preparing the same
AssigneeSamsung Display Devices Co., Ltd.
InventorsYoung-rag Do, Chang-won Park, Joon-bae Lee, Won-ho Yoon
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Abstract
A method of manufacturing a phosphor screen for a flickerless cathode ray tube comprising the steps of forming red and green phosphor layers on a panel for a cathode ray tube on which a black matrix is formed, forming a blue phosphor layer on said panel on which a black matrix is formed by coating the blue phosphor slurry and drying and forming a double phosphor layer by coating an ultraviolet phosphor slurry on said blue phosphor layer and drying, is provided.
Claims10
A phosphor screen for a flickerless cathode ray tube comprising:
- a panel on which a black matrix is formed;
- a red phosphor layer formed on selected regions of the panel on which the black matrix is not formed;
- a green phosphor layer formed on selected regions of the panel on which the black matrix and red phosphor layer are not formed;
- a blue phosphor layer formed on selected regions of the panel on which the black matrix, red phosphor layer, and green phosphor layer are not formed;
- and
- an ultraviolet phosphor layer formed on the blue phosphor layer.
A method for manufacturing a phosphor screen for a flickerless cathode ray tube comprising the steps of:
- forming a black matrix on a panel for a cathode ray tube;
- forming a red phosphor layer on selected regions of the panel on which the black matrix is not formed;
- forming a green phosphor layer on selected regions of the panel on which the black matrix and red phosphor layer are not formed;
- forming a blue phosphor layer on selected regions of the panel on which the black matrix, red phosphor layer, and green phosphor layer are not formed by coating a blue phosphor slurry on the panel and drying the coated slurry;
- and
- forming a double phosphor layer by coating an ultraviolet phosphor slurry on the blue phosphor layer and drying the coated ultraviolet phosphor slurry.
Dependencies are inferred from the claim text.