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. 02, 2014
Filed:
Dec. 02, 2011
Tohru Yashiro, Kanagawa, JP;
Shigenobu Hirano, Kanagawa, JP;
Yoshihisa Naijo, Kanagawa, JP;
Koh Fujimura, Tokyo, JP;
Akishige Murakami, Miyagi, JP;
Hiroyuki Takahashi, Kanagawa, JP;
Yoshinori Okada, Kanagawa, JP;
Tohru Yashiro, Kanagawa, JP;
Shigenobu Hirano, Kanagawa, JP;
Yoshihisa Naijo, Kanagawa, JP;
Koh Fujimura, Tokyo, JP;
Akishige Murakami, Miyagi, JP;
Hiroyuki Takahashi, Kanagawa, JP;
Yoshinori Okada, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrochromic display device includes a display substrate, a counter substrate facing the display substrate, counter electrodes arranged on the counter substrate, an electrolyte layer arranged between the display substrate and the counter electrodes, display electrodes separately arranged from one another between the display substrate and the counter electrodes, electrochromic layers to develop or reduce a color by redox reactions, the electrochromic layers being formed on the respective display electrodes arranged such that the electrochromic layers face the set of the counter electrodes, a voltage applying unit to select one of the display electrodes to connect the selected display electrode and the counter electrodes to apply a voltage between the connected display electrode and counter electrodes, a disconnecting unit to disconnect the unselected display electrodes from the counter electrodes, and an interelectrode connecting unit to connect the display electrodes.