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:
Dec. 25, 2007
Filed:
Sep. 30, 2005
Kenji Shinozaki, Tokyo, JP;
Akio Yasuda, Stuttgart, DE;
Kazuhiro Noda, Kanagawa, JP;
Toru Udaka, Kanagawa, JP;
Mieko Kuwahara, Kanagawa, JP;
Kenji Shinozaki, Tokyo, JP;
Akio Yasuda, Stuttgart, DE;
Kazuhiro Noda, Kanagawa, JP;
Toru Udaka, Kanagawa, JP;
Mieko Kuwahara, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Sony International (Europe) GmbH, Berlin, DE;
Abstract
Between each transparent pixel electrode driven by TFT as a drive device and a common electrode, a polymer layer located in contact with the transparent pixel electrode and electrically active to change in color by electrochemical oxidization or reduction and a polymeric solid electrolytic layer located in contact with the polymer layer and containing a coloring agent are interposed. Since electrochemical oxidization or reduction brings about a color change, the contrast and the black concentration can be enhanced, and bronzing after long-time use does not occur.