JPS54133151A - Electrochemical display device - Google Patents
Electrochemical display deviceInfo
- Publication number
- JPS54133151A JPS54133151A JP4050478A JP4050478A JPS54133151A JP S54133151 A JPS54133151 A JP S54133151A JP 4050478 A JP4050478 A JP 4050478A JP 4050478 A JP4050478 A JP 4050478A JP S54133151 A JPS54133151 A JP S54133151A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- display device
- electrolyte
- counter electrode
- electrochromic compound
- 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: To elongate the life of display device, by using specific counter electrode free from defect of deterioration in reversibility, in an electrochemical display device using electrochromic compound such as viologen compound.
CONSTITUTION: A glass plate 1 containing a transparent electrode for display pole 2, and a counter electrode 3 made from Cd-Cd(OH)2 are providee, and an electrolyte holding member 6 filled with spacer 7 and electrolyte 5 is supported against a protective plate 4. The display pole 2 and electrode 3 are connected to a power source 11, respectively by way of lead wires 8, 9 and selector switch 10. The value of pH of solutions having electrochromic compound and electrolyte dissolved in a proper solvent is adjusted within the range of 8.0 to 9.5. The electrode 3 undergoes the electrode reaction as shown in the formula, and causes dissolution and diffusion, not generating substance which may be the cause for irreversibility. Therefore, stable reaction may be performed in weak alkaline state.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4050478A JPS54133151A (en) | 1978-04-06 | 1978-04-06 | Electrochemical display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4050478A JPS54133151A (en) | 1978-04-06 | 1978-04-06 | Electrochemical display device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54133151A true JPS54133151A (en) | 1979-10-16 |
JPS6327693B2 JPS6327693B2 (en) | 1988-06-03 |
Family
ID=12582374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4050478A Granted JPS54133151A (en) | 1978-04-06 | 1978-04-06 | Electrochemical display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54133151A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6358190U (en) * | 1986-10-06 | 1988-04-18 |
-
1978
- 1978-04-06 JP JP4050478A patent/JPS54133151A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6327693B2 (en) | 1988-06-03 |
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