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:
Jul. 05, 2005
Filed:
Apr. 25, 2003
Junichi Hibino, Neyagawa, JP;
Yoshiki Sasaki, Shijounawate, JP;
Katsuyosi Yamashita, Katano, JP;
Masafumi Okawa, Neyagawa, JP;
Yasuo Takeuchi, Hirakata, JP;
Mitsuhiro Otani, Sakai, JP;
Junichi Hibino, Neyagawa, JP;
Yoshiki Sasaki, Shijounawate, JP;
Katsuyosi Yamashita, Katano, JP;
Masafumi Okawa, Neyagawa, JP;
Yasuo Takeuchi, Hirakata, JP;
Mitsuhiro Otani, Sakai, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
The present invention has as its objective to provide a display panel with silver electrodes without yellowing, and a method of producing such a display panel. After patterning and applying silver paste to form display electrodes on a substrate, glass paste is applied to form the dielectric layer, covering the electrodes, and both layers are simultaneously baked. Glass frit contained in the silver paste is chosen to have a lower softening point than die glass contained in the glass paste, and the baking process is divided into a first step, in which the baking temperature is equal to or higher than the softening point of the glass frit but lower than the softening point of the glass, and a second step, in which the baking temperature is higher than the softening point of the glass. This process allows a display panel to be produced with fewer bakings and reduced yellowing.