公开(公告)号：US6129860A

公开(公告)日：2000-10-10

申请号：US238422

申请日：1999-01-28

Applicant: Do Soon Park ,  Ha Kyun Jung

Inventor： Do Soon Park ,  Ha Kyun Jung

IPC: C01G19/00 ,  C09K11/08 ,  C09K11/66 ,  C09K11/77 ,  C09K11/00

CPC classification number: C09K11/7746

Abstract: The present invention relates to a novel phosphor of green luminescence and more particularly, to the phosphor of green luminescence containing Tb(terbium) as an activator and a perovskite-structure(CaSnO.sub.3) as a host compound, which may emit a luminescent spectrum in the visible range, when excited by electron beam. Since the phosphor of green luminescence of this invention has better emission intensity than the conventional phosphors, it has been widely applicable to the display industry including an electronic display such as cathode-ray tube and field emission display, in spite of the fact the use of Tb, a high-priced rare earth element, is minimized without any sulfur(S) in its chemical composition.

Abstract translation: 本发明涉及绿色发光的新型荧光体，更具体地说，涉及含有Tb（铽）作为活化剂的绿色发光体和作为主体化合物的钙钛矿结构（CaSnO 3）的荧光体，其可以在 当电子束激发时可见光范围。 由于本发明的绿色发光荧光体具有比常规荧光体更好的发光强度，所以广泛应用于包括诸如阴极射线管和场致发射显示器之类的电子显示器的显示器行业，尽管使用 Tb（一种高价稀土元素）在其化学成分中没有任何硫（S）的情况下被最小化。