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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:
JP1976000131735
Publication Date:
May 25, 1978
Filing Date:
November 04, 1976
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
H01J9/227; G03F7/095; G03F7/26; (IPC1-7): H01J9/227



 
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