This review gives the progress of Ⅱ-Ⅵ compond powder luminescent materials in recent years.First of all

akaline sulfide material doped by rare earth ion are being paid renewally attention

some progress of which in catho-doluminescent

and direct current electroluminescent material are reported.Then

some efforts are made to overcome the maintenance problem in ACEL

results show that the possibility of improved AC powder devices is now very real.Finally

typical copper rich phase in EL are noticed not only in some suggestion models but also in designing experiments for examine its function.