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US 7,118,687 B2Granted
Phosphor, method for producing phosphor and its precursor, and display device
AssigneeKonica Corporation
InventorsSatoshi Ito, Naoko Furusawa, Hisatake Okada, Hideki Hoshino
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Abstract
A precursor of a silicate phosphor is formed by mixing a silicon system liquid material, in which a silicon system material is dispersed in a liquid, with a metal system liquid material including a metallic element, and the silicate phosphor is obtained by calcining the obtained precursor.
Claims9
A method for producing a silicate phosphor, comprising the steps of:
- forming the precursor of the phosphor by mixing a first liquid dispersion of wet silica with a second liquid containing a metallic element;
- and calcining the precursor, wherein the calcining includes the steps of,
- a first calcining of the precursor such that any fusion of the wet silica is insubstantial,
- mixing a sintering inhibitor in a calcined product obtained in the first calcining, and
- a second calcining comprising calcining the calcined product obtained in the first calcining.
2 more elements
Dependencies are inferred from the claim text.