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. 30, 2010
Filed:
Nov. 25, 2003
Michiko Okafuji, Katano, JP;
Yukihiro Morita, Hirakata, JP;
Shinichiro Hashimoto, Toyonaka, JP;
Masatoshi Kitagawa, Hirakata, JP;
Michiko Okafuji, Katano, JP;
Yukihiro Morita, Hirakata, JP;
Shinichiro Hashimoto, Toyonaka, JP;
Masatoshi Kitagawa, Hirakata, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A technology effective for improving the luminous efficiency, lifetime, and color temperature of a PDP having phosphor layers of three colors is disclosed. A PDP comprises a plurality of narrow tubes () arrayed on a substrate (). In each narrow tube (), one of phosphor layers (R;B,G) is formed and a discharge gas is contained. The compositions and pressures of the discharge gases are set within appropriate ranges respectively corresponding to the phosphor layers (R,B,G). Consequently, the PDP can have a lengthened life-time and an improved luminous efficiency. Reductions of variation in breakdown voltage and adjustment of color temperature are also possible with this constitution.