logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6013979 B1

PDFFull Text
Date of Patent:
Jan. 11, 2000

Filed:

Jun. 19, 1997

Phosphor composition with a coating of colloidal sio.sub.2 particles and

Applicant:
Inventors:

Friederike Picht, Duren, DE;

Michael Bredol, Aachen, DE;

Joachim Opitz, Aachen, DE;

Frans Vollebregt, Waalre, NL;

Assignee:

U.S. Philips Corporation, New York, NY (US);

Attorney:
Primary Examiner:

Nimeshkumar D Patel

Assistant Examiner:

Mack Haynes

Int. Cl.
CPC ...
H01J / ; H01J / ; C09K / ; C09K / ;
U.S. Cl.
CPC ...
313467 ; 313469 ; 3134 / ; 313479 ; 313480 ; 2523 / ; 2523 / ; 427212 ; 427215 ; 427219 ; 427242 ;
Abstract

The invention relates to a display screen having a phosphor layer of a phosphor composition of a phosphor coated with an oxygen compound of one of the elements magnesium, calcium, barium, zinc and aluminium, and with colloidal SiO.sub.2 having an average particle size of 70 nm.ltoreq.d.ltoreq.130 nm. The invention further relates to a phosphor composition of a phosphor coated with an oxygen compound of one of the elements magnesium, calcium, barium, zinc and aluminium, and with colloidal SiO.sub.2 having an average particle size of 70.ltoreq.d.ltoreq.130 nm, and to a method of manufacturing the phosphor composition.

Find Patent Forward Citations

Picht, Friederike. (2000). Phosphor composition with a coating of colloidal sio.sub.2 particles and (U.S. Patent No. 6013979). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6013979

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…