Title:
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY ELEMENT
Document Type and Number:
Japanese Patent JP2013112632
Kind Code:
A
Abstract:
To provide an electrochromic compound developing a magenta color and reducing coloring when the color is erased, an electrochromic composition coupled or adsorbed with the compound, and a display element using the compound or the composition.
The display element includes an electrolyte 3 between a display electrode 1 and a counter electrode 2, and a display layer 4 containing the electrochromic compound expressed by general formula (1) is formed on a surface in a counter electrode side of the display electrode. In formula, X1 to X12 each represents a hydrogen atom or monovalent group, R1 to R2 each represents a monovalent group, and A- and B- each represents a monovalent anion.
Inventors:
HIRANO SHIGENOBU
OKADA TAKASHI
KOSAKA TOSHIYA
SATO TSUTOMU
OKADA TAKASHI
KOSAKA TOSHIYA
SATO TSUTOMU
Application Number:
JP2011259005A
Publication Date:
June 10, 2013
Filing Date:
November 28, 2011
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
C07D403/14; C09K9/02; G02F1/15; G09F9/30
Domestic Patent References:
| JP2011209688A | 2011-10-20 | |||
| JP2011085773A | 2011-04-28 | |||
| JPS5626975A | 1981-03-16 |
Foreign References:
| WO2011046222A1 | 2011-04-21 | |||
| WO2009126118A1 | 2009-10-15 | |||
| DE4435211A1 | 1995-04-27 |
Attorney, Agent or Firm:
Chieko Tateno