Patent ID: 7147890
Filing Date: 2006-12-12
Classification: B01J,B82Y,C01P,C09C,C09K

Abstract:
1. A coating method for making coated particles applied to phosphor particles of a display phosphor screen, comprising: a step of fluidizing first particles substantially having a first particle diameter, wherein the first particles comprise phospor particles; a step of providing slurry drops obtained by suspending second particles substantially having a second particle diameter that is smaller than said first particle diameter; and a step of coating said second particles on each surface of said first particles by colliding said fluidized first particles and said slurry drops of said second particles, thereby producing said coated particles comprising said phosphor particles and second particles coated on surfaces of said phosphor particles wherein a mean particle diameter of said phosphor particles is 3 to 10 μm, and a mean particle diameter of said second particles is 5 to 100 nm.