Method for manufacturing color phosphor surface
AssigneeMitsubishi Rayon Co., Ltd.
InventorsNorihisa Osaka, Yukihiro Ikegami
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Abstract
A method for manufacturing a phosphor screen used in a color CRT takes the steps of multilayering a red phosphor layer, a green phosphor layer, a blue phosphor layer, and a non-luminescent layer being laid between the adjacent color phosphor layer, cutting the multilayered block into filmy pieces toward the thickness, adhering or pressurizing the filmy cut pieces on a glass plate for front panel of the color CRT, and burning the cut pieces. This method makes it possible to efficiently manufacture a high-definition and high-resolution color phosphor screen and form fine RGB stripes. This method, thus, may apply to a small-sized CRT about which the realization of the high-definition and high-resolution color phosphor screen has been difficult.
Claims18
In a method of manufacturing a phosphor screen for a color CRT, said method comprising the steps of:
- multilayering successive red, green and blue phosphor layers with a non-luminescent resin layer between each adjacent pair of said phosphor layers into a multilayered block;
- cutting said multilayered block in a direction of a thickness of said layers into thin film;
- adhering with an adhesive or pressing at least one of said thin film onto a translucent front panel for a color CRT;
- and
- burning said thin film on said front panel for decomposition removal of at least a portion of each said non-luminescent layer and any of said adhesive.
A color phosphor screen comprising:
- a multilayered thin film prepared from a multilayered phosphor containing block having a plurality piece multilayered of red phosphor, green phosphor and blue phosphor layers with non-luminescent resin layers between each adjacent pair of said layers on a glass panel, whereby to form a front panel of a color CRT after burning non-luminescent material from said thin film.
Dependencies are inferred from the claim text.