Electro-optic device
US4231641A · kind A · utility
99Cited by
10References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1978 |
| Grant date | Nov 4, 1980 |
| Priority date | — |
| Expiry date | Sep 27, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1525
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electro-optic device comprising a transparent conductive layer, an electrochromic layer applied on the said transparent layer, these two first elements constituting together a first electrode, a counter-electrode maintained at distance from the said first electrode, and an electrolyte ensuring an ionic binding between the electrode and the counter-electrode. Preferably, the electrolyte is a polymer of linear molecules such as polystyrene sulfonic acid including a pigment. A combination cell of a perfluorosulfonic acid polymer membrane and polystyrene sulfonic acid is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.