JPS5740584A - Electrochromic display material - Google Patents
Electrochromic display materialInfo
- Publication number
- JPS5740584A JPS5740584A JP55116614A JP11661480A JPS5740584A JP S5740584 A JPS5740584 A JP S5740584A JP 55116614 A JP55116614 A JP 55116614A JP 11661480 A JP11661480 A JP 11661480A JP S5740584 A JPS5740584 A JP S5740584A
- Authority
- JP
- Japan
- Prior art keywords
- anion
- phosphoric ester
- phosphonic acid
- organic substituted
- display material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
PURPOSE: The titled display material for prolonging lifetime both in repeated display and memory display, obtained by utilizing the oxidation and reduction reactions of a viologen compound derivative shown by a specific formula, having an organic substituted phosphoric ester, etc. anion as a counter ion.
CONSTITUTION: The coloring and decoloring reactions caused by the oxidation and reduction of a viologen compound shown by the formula [R1 and R2 are alkyl, aryl, aralkyl; X1 - is phosphoric ester anion of (R3-O)2P(=O)O-, R4-P(=O)ONaO-, phosphonic acid anion of (R5)2P(=O)O-; X2 2- is phosphoric ester anion of R6- OP(=O)O2 2-, phosphonic acid anion of R7-P(=O)O2 2-; R3-R7 are alkyl, aryl, aralkyl], having an organic substituted phosphoric ester anion or organic substituted phosphonic acid anion as a counter ion, are utilized to give the desired display material.
EFFECT: Since this material is not crystallized in a coloring state, it is decolored easily after memory action.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55116614A JPS5740584A (en) | 1980-08-22 | 1980-08-22 | Electrochromic display material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55116614A JPS5740584A (en) | 1980-08-22 | 1980-08-22 | Electrochromic display material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5740584A true JPS5740584A (en) | 1982-03-06 |
JPS6334914B2 JPS6334914B2 (en) | 1988-07-12 |
Family
ID=14691533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55116614A Granted JPS5740584A (en) | 1980-08-22 | 1980-08-22 | Electrochromic display material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5740584A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0196170A (en) * | 1987-10-09 | 1989-04-14 | Kootec Kk | Viologen derivative |
JP2006181337A (en) * | 2004-11-30 | 2006-07-13 | Itoki Corp | System for partitioning space into semi-private room and medical/nursing facilities equipped with the same |
-
1980
- 1980-08-22 JP JP55116614A patent/JPS5740584A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0196170A (en) * | 1987-10-09 | 1989-04-14 | Kootec Kk | Viologen derivative |
JP2006181337A (en) * | 2004-11-30 | 2006-07-13 | Itoki Corp | System for partitioning space into semi-private room and medical/nursing facilities equipped with the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6334914B2 (en) | 1988-07-12 |
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