The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 1994
Filed:
Feb. 03, 1993
Norihiro Tateyama, Saitama, JP;
Katsutoshi Ohno, Tokyo, JP;
Tsuneo Kusunoki, Kanagawa, JP;
Hiroshi Itoh, Tochigi, JP;
Shuichi Nakazato, Tochigi, JP;
Naoki Isobe, Tochigi, JP;
Sony Corporation, Tokyo, JP;
Oji Kako, Co., Ltd., Tokyo, JP;
Abstract
Respective phosphor layers (3R), (3G) and (3B) and a light absorption layer (2) are formed on the inner surface of a panel. An intermediate layer (11) is selectively formed on the surfaces of the respective phosphor layers by using a water soluble liquid having photosensitivity and containing water dispersion vinyl polymer emulsion and partial saponification polyvinyl acetate-system photosensitizer and then a metal-backing layer (12) is formed. A color purity of a phosphor screen can be increased and a brightness thereof can be improved.