Title:
FORMING METHOD FOR FLUORESCENT SCREEN OF COLOR PICTURE TUBE
Document Type and Number:
Japanese Patent JPS5357745
Kind Code:
A
Abstract:
PURPOSE: To make it possible to form a small matrix hole from a large shadow mask hole when the reduction rate of the diameter of the matrix hole against that of the shadow mask hole is from 50 to 70π.
Inventors:
KAMIYAMA TATSUHIKO
Application Number:
JP13173576A
Publication Date:
May 25, 1978
Filing Date:
November 04, 1976
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H01J9/227; G03F7/095; G03F7/26; (IPC1-7): H01J9/227