Phosphor having resistance to deterioration caused by ultraviolet rays and gas discharge display device of which image quality is not readily deteriorated over time

A manganese-activated zinc silicate phosphor according to the present invention satisfies 0< beta - alpha ≤0.5 and 1.7≤ beta , where a value alpha is a ratio of a number of zinc atoms to a number of silicon atoms in a surface region of a phosphor particle, including a surface of the phosphor part...

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Bibliographic Details
Main Authors NAGASAKI YOSHIHISA, SHIRAISHI SEIGO, SAKAI MASAHIRO
Format Patent
LanguageChinese
English
Published 14.10.2009
Subjects
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMISTRY
DYES
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:A manganese-activated zinc silicate phosphor according to the present invention satisfies 0< beta - alpha ≤0.5 and 1.7≤ beta , where a value alpha is a ratio of a number of zinc atoms to a number of silicon atoms in a surface region of a phosphor particle, including a surface of the phosphor particle and a vicinity thereof, and a value beta is a ratio of a number of zinc atoms to a number of silicon atoms in a whole of the phosphor particle.
Bibliography:Application Number: CN200510075952