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:
May. 21, 2013
Filed:
May. 27, 2009
Masao Suzuki, Tsukuba, JP;
Tetsuya Higuchi, Tsukuba, JP;
Wu Weng, Tsukuba, JP;
Toshimi Fukuoka, Tsukuba, JP;
Masao Suzuki, Tsukuba, JP;
Tetsuya Higuchi, Tsukuba, JP;
Wu Weng, Tsukuba, JP;
Toshimi Fukuoka, Tsukuba, JP;
Funai Electric Advanced Applied Technology Research Institute Inc., Daito-shi, JP;
Funai Electric Co., Ltd., Daito-shi, JP;
Abstract
Disclosed is an electrochromic display device, including, a first substrate, first electrodes provided on an upper surface of the first substrate, a second substrate provided to be opposed to the first substrate above the first substrate, the second substrate being formed of a transparent material, second electrodes provided on an undersurface of the second substrate, at least a part of the second electrodes being formed of a transparent electrode material, and an electrochromic composition layer provided between the first substrate and the second substrate. The electrochromic composition layer contains an electrochromic composition including a supporting electrolyte, a polar solvent, a leuco dye, a hydroquinone derivative and/or a catechol derivative, a ferrocene derivative, and a compound having a carbonyl group.