公开(公告)号：DE3469555D1

公开(公告)日：1988-04-07

申请号：DE3469555

申请日：1984-12-15

Applicant: IBM

Inventor： TOYOKAWA KAZUHARU ,  OHTANI HIROKO

IPC: C09K11/08 ,  C09K11/58 ,  C09K11/72 ,  C09K11/74 ,  C09K11/77 ,  H01J29/18 ,  H01J29/20 ,  C09K11/84

公开(公告)号：DE3380877D1

公开(公告)日：1989-12-28

申请号：DE3380877

申请日：1983-06-29

Applicant: IBM

Inventor： TOYOKAWA KAZUHARU ,  OHTANI HIROKO

IPC: C09K11/08 ,  C09K11/88 ,  H01J29/18 ,  H01J29/20

Abstract: Disclosed is a red-emitting superlinear phosphor ZnSe:Cu,Al,Co which is suitable for use in a current-sensitive, single-gun color CRT screen. By the addition of a small amount of Co, a red-emitting linear phosphor Zn:Cu,Al is altered to exhibit superlinear characteristics while maintaining its red-emitting spectrum characteristics. The superlinear phosphor may be mixed with a green-emitting sublinear phosphor such as Zn2SiO4:Mn to form a CRT screen. The resultant screen displays a wider color shift from green to red with the increase of beam current density and also minimizes the brightness variation perception due to the change of current density and thus color.