JPS54123966A - Electrochromic display device - Google Patents
Electrochromic display deviceInfo
- Publication number
- JPS54123966A JPS54123966A JP3221578A JP3221578A JPS54123966A JP S54123966 A JPS54123966 A JP S54123966A JP 3221578 A JP3221578 A JP 3221578A JP 3221578 A JP3221578 A JP 3221578A JP S54123966 A JPS54123966 A JP S54123966A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- voltage
- migrates
- conductive film
- power source
- 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
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
PURPOSE: To eliminate the defect of increasing tendency to degradation in contrast with lapse of cycles and increase response speed by providing a diaplay electrode and specific two counter electrodes and connecting coloring, erasing and reproducing power sources between these.
CONSTITUTION: A voltage is applied from a writing power source 16 between the display electrode 4 composed of a transparent conductive film 2 and a WO3 layer 3 on a transparent substrate 1 and the first counter electrode 10 on the substrate 9 opposing thereto by way of a spacer 6 in such a manner that the display electrde becomes negative. The H+ in electrolyte 7 migrates from the WO3 layer 13 on the conductive film 12 of the electrode 10 to the electrode 4 side and the electrode 4 colors to blue. Next, a voltage is applied from an erasing power source 17 between the second counter electrode 11 composed of a conductive film 14 and graphite layer 15 and the electrode 4 in such a manner that the electrode 4 side becomes positive. The H+ on the electrode 4 side migrates to the electode 11 side of a lower H overvoltage, then the color disappears. Further a positive voltage is appied from a reproducing power source 18 to the electrode 11 and a negative voltage to the electrode 10. The H+ migrates from the electrode 11 to the electrode 10 and the H+ concentration is kept approximately the same as before the writing.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53032215A JPS6023332B2 (en) | 1978-03-17 | 1978-03-17 | electrochromic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53032215A JPS6023332B2 (en) | 1978-03-17 | 1978-03-17 | electrochromic display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54123966A true JPS54123966A (en) | 1979-09-26 |
| JPS6023332B2 JPS6023332B2 (en) | 1985-06-07 |
Family
ID=12352692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53032215A Expired JPS6023332B2 (en) | 1978-03-17 | 1978-03-17 | electrochromic display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6023332B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4346964A (en) * | 1979-05-28 | 1982-08-31 | Kabushiki Kaisha Daini Seikosha | Electrochromic display device |
| WO2006072520A1 (en) * | 2004-12-29 | 2006-07-13 | Siemens Aktiengesellschaft | Electronic component comprising an electrode protection layer |
-
1978
- 1978-03-17 JP JP53032215A patent/JPS6023332B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4346964A (en) * | 1979-05-28 | 1982-08-31 | Kabushiki Kaisha Daini Seikosha | Electrochromic display device |
| WO2006072520A1 (en) * | 2004-12-29 | 2006-07-13 | Siemens Aktiengesellschaft | Electronic component comprising an electrode protection layer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6023332B2 (en) | 1985-06-07 |
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