公开(公告)号：JPS63279539A

公开(公告)日：1988-11-16

申请号：JP11325487

申请日：1987-05-09

Applicant: SONY CORP

Inventor： SAITO TSUNENARI ,  OKADA HIDEKI ,  KATO YOSHIMITSU ,  TERAJIMA KEIKO

IPC: H01J9/227

Abstract: PURPOSE:To improve luminance in a high current density area and yellowing in a fluorescent screen by rotatingly appling a phosphor slurry 12 having phosphor/slurry weight ratio of 14.0-30.0 on the inner surface of a panel, and forming thereon a lacquer film and a metallized film, thereby a fluorescent screen is formed. CONSTITUTION:A phosphor slurry 12 having phosphor/binder ratio in weight of 14.0-30.0 is rotatingly applied on the inner surface of a panel 1 and is exposed and developed thereafter to form a phosphor layer, while a lacquer film is formed on the phosphor layer and a metallized layer is formed on the lacquer film. Consequently, the phosphor charge ratio in the phosphor layer increses in a fluorescent screen to improve the density of the phosphor layer, while the mirror condition in the metallized layer is improved, resulting in that phosphor emission energy can be taken out effectively in the front face of the panel and heat generated at the fluorescent screen can be discharged efficiently to the panel face. It is thus possible to improve luminance and yellowing characteristics in a cathode-ray tube used in a so-called high current density area in a projector or the like.