PHOSPHOR COMPOSITION CONTAINING FINE SILICA PARTICLE AND COARSE SILICA PARTICLE, ITS PRODUCTION AND DISPLAY SCREEN UTILIZING THE SAME

PHOSPHOR COMPOSITION CONTAINING FINE SILICA PARTICLE AND COARSE SILICA PARTICLE, ITS PRODUCTION AND DISPLAY SCREEN UTILIZING THE SAME

PROBLEM TO BE SOLVED: To obtain a phosphor composition which can realize the maximum luminance, color purity, the absence of unclearness, sharpness and adhesion to a display screen glass. SOLUTION: This invention provides a display screen provided with a phosphor coating film comprising a phosphor c...

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Bibliographische Detailangaben
Hauptverfasser: VOLLEBREGT FRANS H A, BAKKER JAN WILLEM G DE, BOUTELJE MIGUEL, PICHT FRIEDERIKE, OPITZ JOACHIM DR, BRAAM ARLIS G VAN, MERIKHI JACQUELINE, JUNGK HANS-OTTO
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
FILLING PASTES
INKS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To obtain a phosphor composition which can realize the maximum luminance, color purity, the absence of unclearness, sharpness and adhesion to a display screen glass. SOLUTION: This invention provides a display screen provided with a phosphor coating film comprising a phosphor composition comprising a coated phosphor containing at least one oxygenous compound of zinc, aluminum, magnesium, calcium and barium and colloidal SiO2 particles, wherein the colloidal particles comprise SiO2 particles having a mean particle diameter d of 4-30nm and a specific surface area As of 100-550m /g and SiO2 particles having a mean particle diameter d of 50-150nm and a specific surface area As of 25-70m /g.