JPS55149374A - Electrochromic display material and element - Google Patents
Electrochromic display material and elementInfo
- Publication number
- JPS55149374A JPS55149374A JP5847379A JP5847379A JPS55149374A JP S55149374 A JPS55149374 A JP S55149374A JP 5847379 A JP5847379 A JP 5847379A JP 5847379 A JP5847379 A JP 5847379A JP S55149374 A JPS55149374 A JP S55149374A
- Authority
- JP
- Japan
- Prior art keywords
- electrochromic display
- display material
- oxidative
- acridine derivative
- reductive reactions
- 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.)
- Pending
Links
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
PURPOSE: To obtain en electrochromic display material having improved repetitive life as well as improved memory life and power consumption, by utilizing the oxidative and reductive reactions of a specific acridine derivative.
CONSTITUTION: An electrochromic display material utilizes the oxidative and reductive reactions of an acridine derivative of the formula (where R is 1W20C alkyl, alkenyl, alkoxy, alkoxycarbonyl, alkoxycarbonylalkyl, alkylcarbmoyl, carbamoylalkyl, phenyl, benzyl, or naphthyl group, R1WR9 each is H or an electron-withdrawing substituent, e.g., nitro, cyano, carboxyl, sulfo, halogen, etc., and X- is a monovalent anion, e.g., F-, Cl-, Br-, I-, BF4 -, ClO4 -, CH3COO-, NO3 -, HSO4 -, H2PO4 -, etc.). Said material is preferably used in a solution of water, organic solvent, or a mixture of these.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5847379A JPS55149374A (en) | 1979-05-10 | 1979-05-10 | Electrochromic display material and element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5847379A JPS55149374A (en) | 1979-05-10 | 1979-05-10 | Electrochromic display material and element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55149374A true JPS55149374A (en) | 1980-11-20 |
Family
ID=13085392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5847379A Pending JPS55149374A (en) | 1979-05-10 | 1979-05-10 | Electrochromic display material and element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55149374A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10642119B2 (en) | 2016-05-18 | 2020-05-05 | Ricoh Company, Ltd. | Electrochromic compound, electrochromic composition, and electrochromic element |
-
1979
- 1979-05-10 JP JP5847379A patent/JPS55149374A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10642119B2 (en) | 2016-05-18 | 2020-05-05 | Ricoh Company, Ltd. | Electrochromic compound, electrochromic composition, and electrochromic element |
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