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:
Jun. 12, 2012
Filed:
Sep. 27, 2007
Osamu Sakakura, Sayama, JP;
Osamu Sakakura, Sayama, JP;
Dai Nippon Printing Co., Ltd., Shinjuku-Ku, JP;
Abstract
There is provided a gas barrier sheet that has high productivity, good gas barrier properties, and anticurling properties. In particular, a gas barrier sheet is provided that, even after a heat cycle test which is performed as a durability test for organic EL displays and the like, can suppress the occurrence of curling and can maintain gas barrier properties. The gas barrier sheet comprises a gas barrier filmprovided on a base material. The gas barrier filmis an SiNOfilm, wherein x=0.5 to 1.5 and y=0.25 to 1, has an absorption intensity of IR absorption (830 cmto 840 cm), corresponding to an Si—N bond, per unit thickness of 0.5×10/nm to 1.8×10/nm and has a refractive index of 1.7 to 2.1.