OXYGEN-CONTAINING PHOSPHOR POWDERS, METHODS FOR MAKING PHOSPHOR POWDERS AND DEVICES INCORPORATING SAME

• Main Authors: HAMPDEN-SMITH, MARK, J, SKAMSER, DANIEL, J, POWELL, QUINT, H, CARUSO, JAMES, KODAS, TOIVO, T
• Format: Patent
• Language: English; French; German
• Published: 03.11.2010
• Subjects: ADHESIVES; ALLOYS; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CASTING; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; COMPOUNDS THEREOF; DRESSING OR CONDITIONING OF ABRADING SURFACES; DYES; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; FERROUS OR NON-FERROUS ALLOYS; GAMMA RAY OR X-RAY MICROSCOPES; GRINDING; INORGANIC CHEMISTRY; IRRADIATION DEVICES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-METALLIC ELEMENTS; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; POLISHES; POLISHING; POLISHING COMPOSITIONS OTHER THAN FRENCH POLISH; POWDER METALLURGY; SEMICONDUCTOR DEVICES; SKI WAXES; TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same. The powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention permits the continuous production of such powders. The invention also relates to products such as display devices incorporating such phosphor powders.