Oxide coated metal grid electrode structure in display devices
US5293546A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1991 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Apr 17, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1508
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved working electrode for use in display devices is disclosed. The working electrode comprises a transparent metal grid having a coating of metal oxide thereon. Suitable metal grids include Cu, Au, Ag, Al, Pt, Ni and Zn, while suitable metal oxide coatings include In.sub.2 O.sub.3, SnO.sub.2 and indium tin oxide (ITO). The display devices preferably include an electrochromic material comprising an aqueous solution of an electrochemically depositable metal. Display devices in which the present working electrode is used possess favorable characteristics such as rapid response times, wide dynamic range, high transmittance and improved uniformity. The devices are particularly suitable for large surface area applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.