公开(公告)号：JPH05325788A

公开(公告)日：1993-12-10

申请号：JP12857592

申请日：1992-05-21

Applicant: SONY CORP

Inventor： KONDO KEIICHIRO ,  NODA ATSUYUKI ,  SATO TAKASHI

IPC: H01J9/227

Abstract: PURPOSE:To provide a black matrix forming method of a cathode-ray tube preventing the surface layer peeling of a carbon paint film, maintaining the paint film thickness and black level of a black matrix, and preventing the irregular resist layer peeling. CONSTITUTION:A resist layer 4 is formed at the preset region on the inner face of a panel 1. A carbon paint film 6 is formed on the inner face of the panel 1. Dilute acid is injected on the surface of the carbon paint film 6. Water is sprayed on the surface of the carbon paint film 6, and the resist layer 4 and the carbon paint film 6 on the resist layer 4 are peeled to form a black matrix.

公开(公告)号：JPH0864130A

公开(公告)日：1996-03-08

申请号：JP22090294

申请日：1994-08-22

Applicant: SONY CORP

Inventor： TSUNODA TATSUYA ,  SATO TAKASHI ,  WATABE CHIYOJI ,  TERASAWA TOSHIHISA ,  SAWADA TAKEHIRO ,  NODA ATSUYUKI

IPC: H01J9/227

Abstract: PURPOSE: To prevent the generation of unevenness of color by discharging the curing agent from a discharging nozzle in nearly parallel with the inner surface of a panel. CONSTITUTION: A discharging nozzle 10 as a curing agent coating device is formed into the L-shape, and the curing agent is discharged in nearly parallel with the inner surface of a panel 8. The inner diameter of the discharging nozzle 10 is set at the predetermined size width than that of the conventional one. Consequently, when the tannic acid solution as the curing agent is supplied through a hose 12 connected to the nozzle 10, the tannic acid solution is discharged from the tip of the nozzle 10 in nearly parallel with the inner surface of the panel 8. The tannic acid solution discharged from the nozzle 10 is jetted in parallel, and dropped by the self-weight, but it is dispersed in the process, and width of the curing agent at the time when the curing agent is adhered to the inner surface of the panel, namely, the initial adhesion width is widened. Consequently, the initial adhesion area is widened to 80-300cm , and unevenness of the hardening speed is reduced.