Combined constant potential and constant voltage driving technique for electrochromic displays
US4295138A · kind A · utility
6Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1979 |
| Grant date | Oct 13, 1981 |
| Priority date | — |
| Expiry date | Nov 16, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A combined constant potential and constant voltage driving technique is utilized which is much more effective to drive an electrochromic display. The electrochromic display manifests the electrochromic phenomenon to place the display in a colored state or a bleached state in response to current applied thereto. A constant potential driving manner is employed in coloring the electrochromic display, while a constant voltage driving manner is employed in bleaching the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.