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:
Apr. 26, 2011
Filed:
Jul. 16, 2009
Mikihiko Nishitani, Nara, JP;
Masahiro Sakai, Kyoto, JP;
Yusuke Fukui, Osaka, JP;
Yosuke Honda, Osaka, JP;
Yasuhiro Yamauchi, Osaka, JP;
Michiko Okafuji, Osaka, JP;
Mikihiko Nishitani, Nara, JP;
Masahiro Sakai, Kyoto, JP;
Yusuke Fukui, Osaka, JP;
Yosuke Honda, Osaka, JP;
Yasuhiro Yamauchi, Osaka, JP;
Michiko Okafuji, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides a plasma display panel (PDP) with a protective film improved so as to achieve a lower discharge starting voltage. A surface portion of the protective filmsubstantially is composed of magnesium (Mg), aluminum (Al), nitrogen (N), and oxygen (O). The protective filmis formed so that in the surface portion of the protective film, a ratio of the number of atoms of the aluminum to a total of the number of atoms of the magnesium and the number of atoms of the aluminum is at least 2.1% but not more than 66.5%, a ratio of the number of atoms of the nitrogen to a total of the number of atoms of the nitrogen and the number of atoms of the oxygen is at least 1.2% but not more than 17.2%, and a ratio of the total of the number of atoms of the nitrogen and the number of atoms of the oxygen to the total of the number of atoms of the magnesium and the number of atoms of the aluminum is at least 1.0 but not more than 1.35.