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. 10, 2013
Filed:
Apr. 13, 2009
Mitsuhiro Murata, Hyogo, JP;
Takuji Tsujita, Osaka, JP;
Toshikazu Wakabayashi, Osaka, JP;
Hiroshi Asano, Osaka, JP;
Masaharu Terauchi, Hyogo, JP;
Mitsuhiro Murata, Hyogo, JP;
Takuji Tsujita, Osaka, JP;
Toshikazu Wakabayashi, Osaka, JP;
Hiroshi Asano, Osaka, JP;
Masaharu Terauchi, Hyogo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a plasma display panel, a protective layer of a front plate is formed of a base protective layer and a particle layer. The base protective layer is a thin film of metal oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. The particle layer is formed in a manner that single-crystal particles of magnesium oxide having a peak of emission intensity at 200-300 nm two times or higher than another peak of emission intensity at 300-550 nm in the emission spectrum in cathode luminescence emission are stuck on the base protective layer. A panel driving circuit drives the plasma display panel with a subfield structure in which subfields are temporally disposed so that a magnitude of luminance weight has a monotonous decrease from a subfield where an all-cell initializing operation is performed to a subfield where a next all-cell initializing operation is performed.