Invention Grant
- Patent Title: Electrochromic display element, optical filter, lens unit, and imaging device
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Application No.: US16358119Application Date: 2019-03-19
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Publication No.: US11079647B2Publication Date: 2021-08-03
- Inventor: Naoki Ura , Fuminari Kaneko
- Applicant: Naoki Ura , Fuminari Kaneko
- Applicant Address: JP Kanagawa; JP Kanagawa
- Assignee: Naoki Ura,Fuminari Kaneko
- Current Assignee: Naoki Ura,Fuminari Kaneko
- Current Assignee Address: JP Kanagawa; JP Kanagawa
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2018-054990 20180322,JPJP2019-049885 20190318
- Main IPC: G02F1/155
- IPC: G02F1/155 ; G02F1/1516 ; C09K9/02 ; G02F1/1514

Abstract:
An electrochromic display element is provided. The electrochromic display element includes a pair of electrodes and an electrochromic layer disposed between the electrodes. The electrochromic layer contains a solvent, a supporting electrolyte, an anodic electrochromic molecule comprising a triarylamine derivative, and a cathodic electrochromic molecule comprising a viologen derivative. Concentrations of the triarylamine derivative and the viologen derivative in the electrochromic layer are each 4 mM or more.
Public/Granted literature
- US20190294015A1 ELECTROCHROMIC DISPLAY ELEMENT, OPTICAL FILTER, LENS UNIT, AND IMAGING DEVICE Public/Granted day:2019-09-26
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