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Patent Searching and Data


Title:
MANUFACTURE OF CATHODE-RAY TUBE AND ITS PHOSPHOR SCREEN
Document Type and Number:
Japanese Patent JPH10283924
Kind Code:
A
Abstract:

To improve high brightness and a brightness life with the filling density of a phosphor increased, also with a metal back layer smoothly formed, by providing a phosphor screen wherein a metallized layer is formed, via an intermediate film by a lacquer film, on a phosphor layer manufactured by a printing method in a panel inner surface.

Phosphor paste, having a main body of a phosphor 3 and a binder 4, is applied on the platelike panel 2 of a cathode lay tube by a screen printing method, etc., to form a phosphor layer 5. Then for instance, a lacquer film 6, adopted as an intermediate film, is formed by a spraying method, and an aluminum film 7 is deposited, as a metallized layer, on the upper surface of the film 6. Resin, unsoluble in the solvent in the lacquer film, e.g. a cellulose derivative, is used as a binder, and acrylic lacquer is used as the lacquer film. An oxidizing agent of 0.1-3.0 wt.% is preverably added to the paste binder.


Inventors:
KATO HIROSHI
ONO KATSUTOSHI
Application Number:
JP9086097A
Publication Date:
October 23, 1998
Filing Date:
April 09, 1997
Export Citation:
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Assignee:
SONY CORP
International Classes:
H01J9/22; H01J9/227; (IPC1-7): H01J9/22; H01J9/227
Attorney, Agent or Firm:
Hidekuma Matsukuma