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:
Sep. 09, 2008
Filed:
Sep. 24, 2004
Yuichiro Miyamae, Osaka, JP;
Masaki Aoki, Osaka, JP;
Kazuhiko Sugimoto, Kyoto, JP;
Keiji Horikawa, Kyoto, JP;
Junichi Hibino, Kyoto, JP;
Tanaka Yoshinori, Osaka, JP;
Setoguchi Hiroshi, Osaka, JP;
Yuichiro Miyamae, Osaka, JP;
Masaki Aoki, Osaka, JP;
Kazuhiko Sugimoto, Kyoto, JP;
Keiji Horikawa, Kyoto, JP;
Junichi Hibino, Kyoto, JP;
Tanaka Yoshinori, Osaka, JP;
Setoguchi Hiroshi, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of a plasma display panel (PDP). The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (R,G,B) in color corresponding to each discharge cell are disposed, and phosphor layers (R,G,B) are excited by ultraviolet light to emit light. Green phosphor layer (G) has a green phosphor including ZnSiO:Mn, the element ratio of zinc (Zn) to silicon (Si) at the proximity of its surface is, which is the stoichiometric ratio, and the layer is positively charged or zero-charged.