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:
Mar. 10, 2009
Filed:
Apr. 07, 2005
Jun Hashimoto, Osaka, JP;
Masatoshi Kitagawa, Osaka, JP;
Mikihiko Nishitani, Nara, JP;
Masaharu Terauchi, Nara, JP;
Shinichi Yamamoto, Osaka, JP;
Jun Hashimoto, Osaka, JP;
Masatoshi Kitagawa, Osaka, JP;
Mikihiko Nishitani, Nara, JP;
Masaharu Terauchi, Nara, JP;
Shinichi Yamamoto, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Provided is a gas discharge display panel that exhibits a favorable display performance by maintaining a wall charge retaining power, controlling discharge delay within a range adequate for optimal image display, and reducing the discharge starting voltage at comparatively low cost. Also provided is a PDP that exhibits more reliability with enhanced display quality by further improving the secondary electron emission factor γ compared to conventional cases and lowering the discharge starting voltage to widen the driving margin. In addition, provided is a manufacturing method of a gas discharge display panel, by which the manufacturing cost lowers by reduction of the exhaustion time in the sealing exhaustion process, and by which the driving circuit cost is reduced. In the present invention, the protective layer contains, with respect to a MgO content of the protective layer, Si in a range of 20 mass ppm to 5000 mass ppm inclusive and H in a range of 300 mass ppm to 10000 mass ppm inclusive.