Phosphor composition with a coating of colloidal SiO.sub.2 parti

Details Phosphor composition with a coating of colloidal SiO.sub.2 parti Phosphor composition with a coating of colloidal SiO.sub.2 parti

1997-06-19

2000-01-11

Patel, Nimeshkumar D.

Electric lamp and discharge devices

Cathode ray tube

Screen

313469, 313477R, 313479, 313480, 2523014R, 2523016R, 427212, 427215, 427219, 427242, H01J 2910, H01J 3100, C09K 1108, C09K 1154

Patent

active

06013979&

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.

REFERENCES:
patent: 5366834 (1994-11-01), Yoneda et al.

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