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. 06, 2005
Filed:
Oct. 23, 2002
Masaki Aoki, Osaka, JP;
Mitsuhiro Otani, Osaka, JP;
Hiroyuki Kawamura, Osaka, JP;
Kazuhiko Sugimoto, Kyoto, JP;
Junichi Hibino, Osaka, JP;
Masaki Aoki, Osaka, JP;
Mitsuhiro Otani, Osaka, JP;
Hiroyuki Kawamura, Osaka, JP;
Kazuhiko Sugimoto, Kyoto, JP;
Junichi Hibino, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Disclosed is a plasma display device that provides high luminance and minimal degradation in luminance under panel operations. A blue phosphor in a phosphor layer has a crystal structure of MeMgSiO:Eu or MeMgSiO:Eu (where, Me contains at least one of Ca, Sr, and Ba) produced with a precursor that is obtained by any one of methods: an aqueous solution synthesis method, a spray synthesis method, a hydrothermal synthesis method, and a hydrolysis method. The phosphor has an average particle diameter ranging from 0.1 to 3.0 μm.