Dry-powdered, silica-coated prosphor particles for use in manufacturing a CRT screen assembly, a method of manufacturing them and a CRT comprising a screen assembly manufactured by using them

摘要

Dry-powdered, silica-coated phosphor particles for use in manufacturing a CRT screen are dispersively coated with silica particles on the surface thereof to enhance the flow characteristics of the phosphor particles according to the present invention. A method of manufacturing the dry-powdered, silica-coated phosphor particles comprises the steps of sequentially first-dispersing silica particles in methanol, slowly adding dry-powdered phosphor particles to said silica-dispersed methanol, second-dispersing methanol in the silica-dispersed phosphor particles-adding methanol, filtering said resultant methanol of the second-dispersing step, drying the filtered resultant of the filtering step, and sieving the dried resultant of the drying step through a screen.