Driver circuit for electrochromic display device
US4150365A · kind A · utility
3Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1976 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Jul 1, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A driver circuit for an electrochromic display device which includes segment electrodes and a common electrode. The driver circuit has a power source, switching means connected between the power source and the segment electrodes, and circuit means disposed between the common electrode and the power source. The circuit means is operative to couple the common electrode to either a positive terminal or a negative terminal of the power source, whereby an electric current will flow through the segment electrodes in bleaching and coloring directions with the use of a single power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.