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:
Nov. 22, 2016

Filed:

Jan. 16, 2014
Applicants:

Koh Fujimura, Tokyo, JP;

Tohru Yashiro, Kanagawa, JP;

Shigenobu Hirano, Kanagawa, JP;

Hiroyuki Takahashi, Kanagawa, JP;

Yoshinori Okada, Kanagawa, JP;

Yoshihisa Naijo, Kanagawa, JP;

Kazuaki Tsuji, Kanagawa, JP;

Sukchan Kim, Kanagawa, JP;

Keiichiroh Yutani, Kanagawa, JP;

Inventors:

Koh Fujimura, Tokyo, JP;

Tohru Yashiro, Kanagawa, JP;

Shigenobu Hirano, Kanagawa, JP;

Hiroyuki Takahashi, Kanagawa, JP;

Yoshinori Okada, Kanagawa, JP;

Yoshihisa Naijo, Kanagawa, JP;

Kazuaki Tsuji, Kanagawa, JP;

Sukchan Kim, Kanagawa, JP;

Keiichiroh Yutani, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/155 (2006.01); G02F 1/15 (2006.01); G02F 1/153 (2006.01);
U.S. Cl.
CPC ...
G02F 1/155 (2013.01); G02F 1/1525 (2013.01); G02F 2001/1536 (2013.01); G02F 2001/1552 (2013.01);
Abstract

Disclosed is an electrochromic display element, including a display substrate, a display electrode, an electrochromic layer, an opposed electrode, and an opposed substrate, wherein the electrochromic layer is formed on the display electrode, a liquid crystal composition that includes a low-molecular liquid crystal and an ionic liquid is present between the display electrode and the opposed electrode, and the ionic liquid includes a tetracyanoboric acid ion and/or tris(pentafluoroethyl)trifluorophosphoric acid ion as an anionic component.


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