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.

Date of Patent:
Sep. 03, 2013

Filed:

Apr. 29, 2010
Applicants:

Toshimi Fukuoka, Tsukuba, JP;

Wu Weng, Tsukuba, JP;

Tetsuya Higuchi, Tsukuba, JP;

Masao Suzuki, Tsukuba, JP;

Rikuo Takano, Tsukuba, JP;

Makoto Omodani, Hiratsuka, JP;

Inventors:

Toshimi Fukuoka, Tsukuba, JP;

Wu Weng, Tsukuba, JP;

Tetsuya Higuchi, Tsukuba, JP;

Masao Suzuki, Tsukuba, JP;

Rikuo Takano, Tsukuba, JP;

Makoto Omodani, Hiratsuka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/153 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is an electrochromic display device comprising: a first and a second substrates; a first and a second electrodes; and an electrochromic composition layer, wherein the device is of a passive matrix drive where the a display and an erasion are performed by an energization in reverse directions between the electrodes, the first and the second electrodes respectively comprise a plurality of electrodes, a pixel is formed where the electrodes are in a grade separated crossing, and the display is performed by voltage application processing where: (i) the first electrode is set as negative, and the second electrode is set as positive, to apply a voltage of a first potential difference, immediately followed by (ii) the first electrode being set as positive, and the second electrode being set as negative, to apply a voltage of a second potential difference equal to or more than the first potential difference.


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