| 摘要 |
<p>Dry-powdered, silica-coated phosphor particles for use in manufacturing a CRT screen are dispersively coated with silica particles (SC) on the surface thereof to enhance the flow characteristics of the phosphor particles (P) according to the present invention. After a polymethyl methacrylate layer (PM) and an overlying polyacrylamide layer (PA) are formed on the phosphor particles (P) the silica particles (SC) are coated. 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.</p> |
