Advance of encapsulating copper-activated zinc sulfide phosphor

Encapsulating copper-activated zinc sulfide phosphor particles was an effective method in order to prolong the lifetime of electroluminescence device and solve the problem of phosphor aged quickly. Advances of encapsulating copper-activated zinc sulfide phosphor are reviewed, with emphasis on the methods of encapsulating phosphor particles. The fluidized chemical vapor deposition (CVD) method is most widely used today in the field of coating phosphor particles because of coating uniformity, and it is introduced including the process, characteristic and intrinsic reason of fluidization and the process and peculiarity of coating phosphor particles by fluidized CVD.