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:
Nov. 22, 2011
Filed:
May. 14, 2010
Applicants:
Michiru Kuromiya, Osaka, JP;
Tomohiro Okumura, Osaka, JP;
Motoi Hatanaka, Osaka, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 17/49 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plasma display panel includes a front panel having a dielectric layer. The dielectric layer of the front panel includes a first dielectric layer and a second dielectric layer disposed on the first dielectric layer. The gas permeability of the second dielectric layer is in the range of 0% to 1%. The second dielectric layer may be formed by heating the surface of the first dielectric layer to thermally metamorphose or transubstantiate the first dielectric layer to a limited depth from the surface the first dielectric layer.