Title:
CATHODE AGING METHOD FOR COLOR CATHODE-RAY TUBE
Document Type and Number:
Japanese Patent JPS6047337
Kind Code:
A
Abstract:
PURPOSE: To effectively perform cathode aging by setting the cathode temperature in the flashing process to a temperature exceeding a specified temperature.
CONSTITUTION: By the even balance between the evaporation of Ba at high temperatures and a damage such as the deterioration of dielectric strength characteristics resulting from the evaporation, the time when a high temperature exceeding 1,350°K is kept is set to 2 to 5min and the flashing temperature is allowed to exceed 1,350°K or desirably is set to 1,400°K. As a result, good cathode activation is obtained and good emission can be maintained during life and stable characteristics can be obtained for a long period of time.
Inventors:
YOSHIGI SHIYOUJI
Application Number:
JP15593283A
Publication Date:
March 14, 1985
Filing Date:
August 26, 1983
Export Citation:
Assignee:
TOSHIBA KK
International Classes:
H01J9/44; (IPC1-7): H01J9/04
Domestic Patent References:
| JPS57199144A | 1982-12-07 | |||
| JPS58145039A | 1983-08-29 |
Attorney, Agent or Firm:
Norio Ogo (1 outside)